Taps: specifications, types

Types of application provided by the design of the tap.

Modern taps can be designed for bath, shower, washbasin, bidet, kitchen, drinking water filter only and with the possibility of connecting to a filter. At the same time, many models are designed for several application formats at the same time — for example, functioning with a bathtub and a washbasin at the same time; and there are models without mixing water at all (with one connection pipe) — only for cold or only for already mixed water. More details in the separate paragraphs below.

— For bathtub. Taps used to fill the bathtub. Traditionally provided for wall mounting (see "Installation"), although there are exceptions in some specific models. In addition to a bathtub, such a tap can be used for a shower and/or a washbasin; in the first case, the design provides for the connection of a shower set, in the second, a long swivel spout that can be turned from the bathroom to the sink of the nearby washbasin.

— For shower. This option means that a shower set can be connected to the tap; sometimes such units are even supplied as a set (see "Spout design"). Specialized shower taps are exclusively wall-mounted or built-in (see "Install...ation"). At the same time, in addition to “shower-only” models, there are also “multi-purpose” products designed to be used simultaneously with a bathtub, and sometimes also with a washbasin (see “For bathtub” above).

— For washbasin. Specialized taps designed only for washbasins and have a relatively short spout, usually fixed, and can be installed in almost any way (except that floor models are a rather exotic option that has not gained distribution). Due to the similarity of washbasins with kitchen sinks, some models of a similar design can also be used as kitchen taps. Another, quite common, option is a hygienic shower for use with a bidet. Also note that the “washbasin” assignment can also be provided as an additional function in taps originally designed for bathtubs (see above).

— For kitchen. Taps for this purpose can be both highly specialized and provide other applications — for a washbasin (see above) or for a drinking water filter (see below). Anyway, such products are mounted mainly on a wall or tabletop, and the spout can be made quite high so that a pan or other large dish can be placed under. Also, in kitchen taps an interesting feature as a spring spout can be found (see "Spout design").

— For bidet. A bidet is a device in the form of a hygienic bath for washing the external genitalia and anus after going to the toilet. The classic bidet tap is installed directly on such a bath in a horizontal way (see "Installation"); the shape and design of the spout in such models is selected in such a way as to ensure effective ablution. However, in addition to this, the “bidet” category also includes specialized taps for a hygienic shower — a similar procedure carried out using a separate shower set. Such taps are built into the wall and do not require a separate bidet — a hygienic shower can also be used with a conventional toilet.

— For drinking water filter. Taps designed to supply drinking water from a tap filter, usually located under the kitchen sink. They are installed exclusively on the tabletop (see "Installation"), most often on the sink itself. Specialized models with only this equipment are distinguished by their small size and single-valve design (see "Tap type"). In addition, the possibility of connecting a drinking water filter can be provided as an additional feature in kitchen taps (see above). In such models, the spout has two holes — for "common kitchen" and for drinking water; each flow is controlled separately by its own valve (set of valves) or by a joystick.

— No water mixing. Taps that are designed to supply water at the still temperature. Outwardly, such models are no different from the classic ones: some are made with levers, others with a cross handle. But the key to them is the presence of only one pipe for supplying water. Accordingly, you can connect only cold, only hot or already mixed water.

The tap type is indicated by the type of controls installed in it. A number of features of both management and application in general depend on this. Nowadays, on the market you can find single cross handle, two cross handle, single lever (including those with additional touch control), non-contact and thermostatic taps, as well as push button models, which include both self-closing and thermostatic with a button. Here are the main features of these options:

— Single handle. Taps controlled by a single rotary handle (or a lever that moves in only one plane). In fact, they are not even "taps" as such, since they cannot mix hot and cold water and only regulate the pressure of the water supplied to them. It makes sense to use single handle models where the water temperature is constant and/or it makes no sense to regulate it — for example, in models for a kitchen filter (see "Suitable for"), for a washbasin where only cold water is used, or for an English-style washbasin, where hot and cold water is supplied from separate taps and mixed in the sink.

— Double handle. The classic design of taps, which does not lose popularity nowadays: two rotary handles responsible for...hot and cold water, respectively. This design is simple and inexpensive, while being reliable, moreover, it is convenient for precise temperature control. In addition, two handle taps are not afraid of the difference in the pressure of hot and cold water, and therefore it is recommended to use them with boilers. The disadvantage of this option is the impossibility of changing the pressure separately from the temperature and vice versa — any change requires turning both valves, while the pressure and temperature can fluctuate.

— Single lever. Taps where the flow of water is controlled by a single lever. Most often, turning the joystick from side to side in such models regulates the temperature, and tilting relative to the axis of rotation controls the pressure. This allows you to adjust the temperature without changing the pressure (and vice versa) and even “remember” the selected temperature option (just lower the lever to close without turning it sideways). At the same time, such devices are less accurate in adjustment than double cross handle ones.
Occasionally, you can also find a more specific variety — single-lever taps, supplemented by a separate temperature control lever (see below). In such models, the main joystick controls only the pressure.

— Push button. Models of mixers in which the control of turning the water supply on and off is assigned to a button. The first press turns on the water flow, the second turns it off. The button can be either an auxiliary means for conveniently turning on/off the water, or the main control element for the mixer. In the latter option, to adjust the water supply pressure, the button is often made rotary.

— Self-closing. A variety of taps with button activation. However, here the button works on the principle of a timer: when you press it, water flows, and then a special mechanism gradually returns the button back, blocking the flow. Closing time is selected in such a way that one press allows you to more or less effectively wash your hands. Such devices are especially popular in public places, such as toilets of cafés, shopping centres, cinemas, etc.: there is no need to worry that an inattentive visitor will forget to turn off the tap. Most often, these taps are single-temperature, but there are also models with a temperature adjustment lever (see below).

— Thermostatic. Taps that have a thermostat function — that is, capable of automatically maintaining the temperature set by the user. Such models are extremely convenient: when the pressure or temperature of the water in the pipes fluctuates, you do not need to fiddle with the settings — the device will independently select the operating mode so that the outlet temperature does not change (or at least these changes are minimal). The main disadvantage of thermostatic models is the complexity of the design and, as a result, the high cost. In addition, many of them require an electrical connection. For control, models may include rotary controls or a button (see above).

— Non-contact. Models operated in a non-contact way — without the need to touch the device. This format of operation is most popular in washbasin taps (see "Suitable for"): in such models, a sensor is used that reacts to the presence of the user's hands under the spout. This is especially convenient in common areas where it is undesirable to touch the tap once again. There are other types of non-contact models — in particular, devices for the kitchen or shower. In the first case, it can be inconvenient to open an ordinary tap with dirty hands after kitchen work. At the same time, the control may not be completely contactless — there are devices with valves or other equipment for pre-setting the temperature, while the sensor in them works only as a water flow switch. And touchless shower taps necessarily have an additional control for setting the temperature; the sensor in them reacts not just to the hands, but to the whole person.

— Single-lever + touch. A variety of single-lever mixers (see above), equipped with an additional switch. As in conventional single-lever models, the joystick in such devices is used to adjust the pressure and temperature; the difference lies in the fact that the water is opened not by a lever, but by the mentioned switch. In other words, it is enough to set the optimal pressure and temperature once using the joystick — and then you can turn on the water by simply touching the switch. The device of the switch itself can be different: in some models, the entire tap's body plays its role, in others a special button or even a foot pedal is provided. The exception is the non-contact models described above — they may be similar in design and method of use, but all the same, these taps are classified into a separate category.

The overall shape of the tap body.

According to this indicator, modern models are divided into rounded and right-angled. There are no functional differences between them, the difference lies solely in appearance. So, the rounded shape is traditional, familiar to many and fits well into almost any interior, besides, such cases are relatively inexpensive to manufacture; as a result, it is this option that is the most popular nowadays. In turn, a right-angled shape, with pronounced edges and ribs, gives the product an original and stylish appearance, but it is much more expensive than a round one. In addition, note that water does not drain well from a right-angled case, plaque forms on it faster, and it has to be cleaned more often. Therefore, in such cases, mainly premium-class models are produced, based on a non-standard design.

The shape of the handles provided in the design of the tap of the corresponding type — usually two-valve (see "Tap type").

This feature mainly affects the appearance of the structure, but different design options also have practical application features:

— Cross. Gates in the form of classic four-pointed crosses are the most popular design nowadays. It is great for retro-style taps, but can also be used in more modern designs. However, the main advantage of this option is the presence of reliable stops under the fingers, which makes cross handles very convenient to use. This is primarily due to their popularity. The disadvantages of "crosses" include some difficulty in cleaning due to the abundance of protruding parts; however, to facilitate this task, the bars of such a handle can be made removable.

— Round. This category includes both strictly round valves and parts that have small protrusions or recesses for a more secure grip (and in the first case, for the same purpose, a special notch may be provided around the circumference of the valve). Anyway, the main advantages of round products are a neat appearance and maximum ease of cleaning. On the other hand, this shape is the least secure to hold, requires a tight grip, and is most likely to slip the handle in the hand when turning. However, most often modern taps do not require much effort, and this moment is not particula...rly critical.

— Triangular. Handles with three pronounced cutouts or protrusions. The specific shape may be different: some models are very close to round, others have the shape of triangles, others differ from cross handles only in the number of rays. The stronger the shape of such a handle differs from a circle, the more reliable it is to hold. On the other hand, sometimes the best option in terms of design are more rounded models.

— Square. Handles with four pronounced cutouts or projections. Note that a strictly square shape is rare, mainly in expensive designer taps (in fact, for design reasons, it is used in them). Much more popular are "square" handles in the form of a kind of star with four rays/petals. This is a kind of compromise between round and cross-shaped: the handle turns out to be more secure in holding than round, and more convenient to clean than the "cross".

— Polygonal. "Handles with corners", not related to the triangular or squared described above. The most popular type of such parts is round rotary knobs with a set of protrusions — “rays” (from 5 or more) for reliable retention; however, there are also more specific options — for example, an oblate polygon that resembles a figure eight.

— Oval. Handles having an oval or close to it shape (for example, a rectangle with rounded corners). One of the options for this design is bath and shower taps, in which the body has a horizontal layout and elongated proportions, and the handles are located on the side ends of the body and are actually its continuation. Another option is a round handle shape with a flat cut on one edge for added retention. There are other, more specific options. However, anyway, "ovals" are rarely used, mainly among designer-level taps, and the role of this form is more aesthetic than practical.

— Feather. Single-lever faucets, in which the joystick lever for controlling the flow of water is made in the form of a small narrow stick. It resembles a pen in shape and structurally enters directly into the cartridge (unlike conventional models, where such a lever is part of a plate that is attached to the cartridge). The pen can be placed both vertically and horizontally (depending on the design of the mixer). At a minimum, these products have an unusual appearance, and for some users, a joystick pen may be more convenient to use. On the other hand, such joysticks are found mainly among premium mixers.

— Elbow (medical). Taps with a water regulation lever of an unusual shape, easy to use with your elbow. Such models are especially in demand in medical institutions, when the hands of a medical employee must always be clean and close the tap with them — already a violation of hygiene standards.

— Joystick with a hole. The characteristic hole in the handle of single-lever taps plays both a decorative role and a practical one. For some models, it serves as a design element of the tap, and in general, the hole can be used to conveniently adjust the pressure and temperature of the water (by prying with a finger and then turning or raising/lowering the lever).

Taps designed "antique" and designed primarily to fit into the room with the appropriate design (especially the kitchen). Most often, retro models have a spout of a peculiar design, in the form of a rectangular bend with an arc at the end.

Faucets made in an unusual design and noticeably different in appearance or spout shape from other standard models. Unusual can mean cutting-edge design that provides a new look at familiar contours from a different angle. Also atypical are faucets with a cascade spout and an open top through which water flows. Another option for an unusual design is the non-trivial shape of the mixer body. Such styles can significantly enliven even quite standard bathrooms, and they fit best into original designed interiors. Note that usually faucets with an unusual design are more expensive than standard models, and in terms of ease of use and durability they are often inferior to traditional solutions.

— Waterfall. In such spouts, water is supplied through an outlet in the form of a thin horizontal slot, or through a wide chute (depending on the model). Due to this, a large width of the jet is achieved with its small thickness, which provides good throughput, as well as an original appearance — the waterfall tap actually imitates a waterfall (hence the name). On the other hand, this type is less universal than the classical one, and it costs significantly more, and therefore is used quite rarely. Basically, waterfall spouts are used for bathtubs (due to their high throughput), there are also models for washbasins (see "Suitable for").

— Without spout. Models of taps that do not have a spout. Foremost, this applies to models for the shower, where mixing and water supply are provided for a shower head or overhead shower.

In most cases, the spout is classic, made in the form of a tube. Such spouts can have different shapes in length (straight, curved, with an angle) and cross-section (round, triangular, square, etc.), but all of them are just tubes.

— Straight. Spout that have straight or almost straight shape and directed almost horizontally (other arrangements are highlighted in a separate paragraph — see “At right angle”). Generally, such a spout combines simplicity, practicality, and versatility. In particular, it can be of any length, and can also be rotary (see “Spout”), while being inexpensive to manufacture. Nowadays, straight spouts are extremely popular, and in almost all types of taps (see “Suitable for”). The exception is perhaps the kitchen application: this form is inconvenient for washing dishes by itself and leaves less space for dishes in the sink than other shapes (for example, angled or gooseneck spouts).

— Gooseneck. Taps with a spout in the shape of an arc, usually semicircular and rather steep. This design is most popular in kitchen taps, as it provides the necessary space for washing large dishes. Many models with such a spout are designed for washbasins — they also use a vertical installation, for which the arc is very convenient. And gooseneck bath taps are most often original premium models installed directly on the side of the bath (also horizontally).

— L-shaped. Spout in the shape of the letter “L” — with a vertical base and a horizontal “crossbar” extending from it. Thanks to this shape, the spout can be positioned at a sufficiently high height, which is especially conveni...ent when used in the kitchen or with a washbasin. Most of the L-shaped models refer to these specialization options (see “Suitable for”). According to the type of the tap (see the corresponding list), they are usually single-lever, while the joystick is located on the side; however, there are other options — both in the location of the joystick, and in the type of control.

— U-shaped. Spouts of this category resemble L-shaped models (see the relevant paragraph), in which the end of the spout is noticeably bent downwards. This gives them an original shape, as well as some resemblance to gooseneck models. U-shaped spouts are typically taller and are intended for use in kitchens or washbasins. At the same time, they are not as popular as the mentioned L-shaped ones, and even more so the gooseneck ones. In particular, because of the higher cost with no obvious practical advantages (although this form may well be optimal in terms of design).

— S-shaped. A variant that is predominantly found in bath models (including bath and washbasin solutions) as well as in some kitchen taps. The spout in this arrangement has the shape of the letter “S”, laid “on its side”. This design is well suited for wall-mounted models, where the spout outlet must be placed noticeably below the tap itself.

— At right angle. A straight spout located at a right angle relative to the tap body — directed from the base of the body up or down. This shape is especially suitable for washbasins and kitchens, and it is mainly found in taps of those specializations (see “Suitable for”). Most models with a similar spout have a fairly modern appearance, thanks to that they fit well into modern, high-tech interiors, etc.

— Curved at an angle. A spout that leans upward from the base of the tap and curves slightly downward at the end. The shape is in many ways reminiscent of the “at right angle” option, but it has its own characteristics. Firstly, such a spout can be made somewhat longer, which is convenient for kitchen use: the outlet is at a sufficiently high height and there is enough space under it to wash even large dishes without any problems. Most of the models in this category are just made for the kitchen. Secondly, for some users, this form is preferable from an aesthetic point of view (although, of course, this is a matter of personal taste). These spouts look more “cheap” compared to the products of the “at right angle” form factor and are extremely rare among top plumbing brands.

— Vertical jet. This type of spout is found among bidet taps. It involves vertical spraying of a water jet for taking a hygienic shower after visiting the toilet. The mortise vertical spray module is installed separately from the tap. Usually, the design also assumes a water return valve.

— Connected to overflow. Taps with a spout in the form of a flexible hose that connects to the overflow of the bathtub, and the water is poured through it. Thanks to such taps, minimalism is ensured in the appearance of the bathtub, which is caused by the absence of a classic spout. In addition, there is no need to make extra holes in the side of the bathtub to install the tap.

Spout equipped with a flexible retractable hose. Thus, if necessary, you can detach the working part of the spout from the mixer body, actually turning it into a kind of shower head on a flexible hose. This function is found only in models for the kitchen — in other types of taps it is easier to use a classic shower set. A pull out spout can be especially useful in some specific situations where the “manoeuvrability” of a conventional spout is not enough — for example, if you need to thoroughly wash the walls of a large pot, or draw water into a container that does not fit in the sink. In addition, when washing large dishes, it is more convenient to move the mixer nozzle around the dishes, rather than turning the appliances themselves under a stationary stream of water.

The length of the hose provided in the design of the pull-out spout. Allows you to understand how far you can move the shower head from the sink.

Another feature that is typical for kitchen taps: spout in the form of a nozzle on a flexible hose, often supplemented by a spring. By purpose, this function is similar to the retractable spout described above: the working nozzle turns out to be very agile, it is convenient to wash dishes, especially large ones, with it — the dish itself can be put motionless and rinsed from all sides with a manual nozzle. At the same time, a spring spout looks more original than a retractable spout, and is great for kitchens in a modern technological style. On the other hand, such a design is more expensive than a retractable spout, and therefore is used less frequently.

Possibility to turn spout from side to side. In this way, you can change the location of the water jet, which can be useful in a variety of cases. This feature of the swivel spout is most popular in two varieties. The first is bath and washbasin devices, where one spout serves both the bathtub and the washbasin. The second is kitchen taps: the ability to rotate the spout is important in order to place large dishes in the sink.

An angle to turn the drain. It is worth considering that in our case the angle is not considered relative to the center position, but the overall angle is right-left. In this way, the 110 degree value allows to rotate the mixer slurry with respect to the center position by 55° to the right and left.

The spout of a large length is typical mainly for models designed for bathtubs and washbasins. Most often, such a spout is made swivel (see below), due to which the flow of water can be directed as needed, both into the bathtub and into the sink.

The length of the spout characterizes the distance from the body to the place where the water is flown out, i.e. the actual length of the conditional "nose" of the tap.

Distance from the fixing point (for vertically mounted taps) or from the centre of the mounting hole (for horizontally mounted taps) to the middle of the spout. It is a characteristic that determines the "reach zone" of the tap.

The jet height is usually specified for taps with horizontal installation (see "Type of installation"). It is measured from the base of the tap to the spout outlet. The large height of the spout is important primarily for kitchen models (see "Suitable for"), because it allows you to place large dishes in the sink. This parameter is directly related to the height of the spout (see above): the height of the jet cannot be greater than the height of the spout. Thus, in fact, one has to find a compromise between the height of the jet and the dimensions of the tap, especially if there is little space for its installation.

The angle of the water jet produced by the tap, relative to the vertical. Generally stated for full head; with partially blocked water, this angle is smaller. Anyway, the water jet is usually directed towards the user, and the greater the angle of inclination, the farther from the spout the point of incidence of the jet will be placed. However, in most cases this point is not critical; problems can arise only in very cramped conditions, with small basin sizes.

The possibility of rotation of the spout, which allows you to change the angle of water supply. This design feature is relevant primarily for taps designed for bidets. In them, the aerator can be rotated by some slight degree, thereby adjusting the water flow to your body anatomy.

The number of modes supported by spout.

This information is specified only for mixers having multiple operating modes. The adjustment of the modes is carried out by changing the size and number of holes through which water flows. Almost all models with this feature belong to the kitchen (cf. «Purpose»); and the general sense of the adjustment is to optimally adjust the flow of water to the characteristics of the situation. For example, for washing greenery and other delicate products, careful treatment is desirable, and to remove dried dirt from the dishes is better suited intensive water jet.

The functions of the tap are mainly design features, among which the are check valve, bottom valve, cold start, LED backlight, temperature adjustment lever, display, auto-drain (hygienic flush), washer/dishwasher switch< /a>, shelves for accessories. In more detail:

— Check valve. The non-return valve prevents the flow of water through the tap in the opposite direction — for example, when there is a large pressure difference between hot and cold water. This function will be relevant for those who are going to install water metres: the presence of check valves on mixers is often a prerequisite for fulfilling an application for installation, because such valves prevent counters from spinning in the opposite direction. In addition, you should pay attention to the presence of a check valve in the tap (especially a single-lever tap, see "Tap type"), if there are interruptions in the water supply of your house — such taps behave much better in case of pressure surges in the water supply.

— Drain valve. A device that allows you to close the drain hole in the sink, kitchen sink or bidet (depending on the purpose of the tap). There are two types:

— Lever drain valve....To control the operation of such a valve, a small lever is used, located behind the tap, on the side of it or in front of the body. Raising and lowering it opens and closes the drain plug in the sink.

— Pressing drain valve. Valves of this type are locked and unlocked by pressing the drain plug, for which you need to wet your hand.

— Cold start. A feature found exclusively in single-lever models. The general principle of operation of the “cold start” is as follows: if you open the tap with the initial position of the joystick, it will not bring out mixed warm water (as in more traditional single-lever devices), but only cold water. To add hot water and raise the temperature, you need to deflect the lever from its initial position. Such a format of work can provide significant savings: by default, cold water comes out of the tap, and hot water is added to it only if necessary.

— LED light. Lighting system based on LEDs — an efficient and economical source of illumination. The purpose and functionality of such a backlight may be different. So, in some models, it is installed on the spout and directed downwards, which allows you to clearly see the space under the spout even in low ambient light. Sometimes such illumination also illuminates the stream of water, giving it an unusual appearance. There are also quite original systems — for example, with a transparent spout and LEDs at its base, which creates the effect of a tap glowing from the inside; and in some models, the lighting also changes color depending on the temperature of the water. However, anyway, this feature significantly affects the cost, so it is typical mainly for premium products.

— Autodrain (hygienic flush). Such a system is equipped with taps with additional electronics — mostly contactless models, as well as products with a thermostat or a button switch. The autodrain works as follows: at a certain rate (for example, once every 12 hours or once a day), the automation briefly turns on the water. Due to this, harmful bacteria are washed out of the device, which tend to multiply on the inner surfaces of the spout and in “stagnant” water inside the tap itself. At the same time, the consumption of water for hygienic washing is small, usually it is practically not noticeable against the background of general consumption.

— Temperature adjustment lever. A function found in taps, which design initially does not imply a temperature controller — primarily non-contact models, as well as in products with one main lever or with button activation (see "Tap type"). As the name implies, the temperature control lever allows you to use such a tap not only to control the pressure, but also to change the temperature of the water.

– Display. Taps that display temperature and/or current water flow. The display provides a clear visualization of the settings and allows you to see what kind of water and how much is flowing from the tap. However, the presence of the screen significantly affects the cost of the tap.

— Washer/dishwasher switch. A function that can significantly facilitate the connection of a washing machine or dishwasher to the water supply system. Taps with a washer/dishwasher switch have a separate pipe for connecting the dishwasher, as well as the switch itself, which allows you to open and close the water supply to this pipe. Thus, to connect a washing machine or dishwasher, you do not need to install additional bushings, splitters, etc. — just connect the device to an existing output. And you can control the water supply directly from the tap body, for this you do not need to get under the sink or into another hard-to-reach place.

— Shelf for accessories. Most often, the role of such a shelf is played by the upper part of the body, specially made flat. This feature is found mainly in bath and/or shower taps (see “Suitable for”): it is convenient to keep shampoos, gels, soaps and other cosmetic/hygiene products on the shelf.

Note that this function is rare — mainly in high-end taps (in particular, thermostatic ones), which initially have large body sizes. In more traditional models, it makes no sense to include this design element — it is wiser to purchase a shelf as a separate accessory for the bathroom.

Material and design features of the valve (valves) responsible for opening and closing water in the tap.

— Rubber. Valve material for low-cost one- and two-valve mixers (see “Product type”). Rubber is inexpensive, easy to replace, and resistant to contaminated water (unlike ceramics). On the other hand, rubber valves have a relatively short service life — when they wear out, they begin to leak, and they have to be changed time to time.

— Ceramic. These valves are based on a pair of ceramic-metal plates polished for maximum contact and tightness. They can be used both in cross-handle and lever taps (see "Product type"). This material is much more durable than rubber, and in the case of a single-lever tap, it also makes adjustment easier, because the friction between the plates is low, and it is much easier to move the lever than with a ball valve. The disadvantage of ceramics is the sensitivity to water contamination by solid particles — getting between the plates, they can break the tightness of the valve. Therefore, it is recommended to install filters in front of such taps.

— Electromagnetic. A type of valve used in all non-contact mixers (see "Product type"), as well as some models of a different design — in particular, push-button and single-lever with touch. As the name implies, an electromagnet is responsible for opening and closing water i...n such models. At the same time, the valve in most models has only two positions — “open” and “closed” — and does not imply pressure adjustment. But the temperature controller can be provided — for example, in the form of an appropriate lever (see above). Electromagnetic valves are quite efficient, but expensive and require external power to operate.

— Ball valve. A type of valve originally developed for single-lever taps (from which the tendency to call such devices "ball valves" came from, which is not technically correct). At the heart of such a valve is a spherical element with a special slot through which water is supplied; when the lever moves, the slot occupies one position or another, on which the pressure and temperature of the water depend. In domestic taps, this type of valve is considered obsolete and is rarely used.

The diameter of the cartridge used in the tap.

The cartridge is called the "heart" of the tap — the part directly responsible for adjusting the pressure and/or temperature of the water (in some models — also for switching between spout and shower). The main dimension of this part is precisely the diameter. However, in fact, this size becomes relevant only if it is necessary to replace the cartridge. But when choosing a tap, it does not really matter — from the point of view of characteristics, only the overall dimensions of the device depend on the diameter of the cartridge, and then quite approximately and without a fundamental difference between individual models.

The maximum water flow during the operation of the tap, in other words, the maximum amount of water that it can pass through in a minute. This characteristic is important, foremost, for models designed for baths (see "Suitable for"): the greater the throughput, the faster the bath will fill. However, the meaning of this paragraph is not limited to this. First, flow information can be useful in certain calculations related to water supply — for example, to calculate the required pump capacity. Secondly, high-end taps can be equipped with aerators to achieve a powerful and efficient jet with low water consumption; the consumption indicated in the characteristics allows you to evaluate the efficiency of such devices in comparison with analogues.

The lowest inlet pressure at which the tap is able to fully perform its functions of unhindered water supply.

The highest inlet pressure at which the tap is able to operate in a trouble-free mode with minimal risk of premature failure. In other words, this is the ultimate strength of the tap. Note that for normal east european use, it can be assumed that the maximum pressure in the water supply is 6 bar. One should focus on that value and choose a model with a small margin of max pressure in order to avoid leaks in the tap nodes during pressure surges in excess of the norm. Note that in plumbing with a centralized water supply, the pressure can reach 10 bar. Therefore, for expensive taps that make high demands on the inlet pressure, it is necessary to buy special reduction gears.

In most cases, this is not one accessory, but a whole set that allows you to use the tap for showering. A mandatory element of the shower set is a shower head, in most cases it is supplemented with its own hose. In addition, the design may provide a mount for a watering can — on the wall or directly on the tap's body (for the second option, see below). But the purpose and functionality of the shower set may be different, depending on the specialization of the tap itself (see "Suitable for"). So, in bath and shower models, water can be supplied either through a spout or through a shower set, and an appropriate switch is provided for selection (sometimes automatic, see below). Shower-only taps do not have this switch. In models for washbasins, the shower set is designed for the so-called hygienic shower — washing certain parts of the body (primarily the groin area, etc.); the watering can for such a shower is small in size and is equipped with its own button that turns the water on and off. There are even kitchen taps with this function — the shower performs the same function as the pull-out spout. And the number of modes may not be limited to one. Several hand shower modes allow you to get a shower water jet of your favour — from classic small streams to one continuous stream, with all sorts of variations. The more settings provided, the wider the choice.

The length of the hose provided in the design of the tap. This is a secondary parameter, since the hose is selected by the manufacturer in such a way that it is comfortable to use it for its main purpose — for taking a shower. But for tall people, the standard length may not be enough, so it is appropriate to know its dimensions for greater comfort and ease of use.

A diverter is a device that switches a water flow between spout and shower head. The design of such a device and the way it is controlled can be different, in modern taps you can mainly find the following options:

— Button. Diverters of this type have the form of a button; but its design depends on the characteristics of a particular tap. In relatively simple mechanical models (most of them), the button is also made mechanical, and to switch from spout to shower, you need to pull it up. And switching in the opposite direction — from a shower to a spout — can often be carried out not only manually, but also automatically, when the water is turned off (see "Features — Shower / bath auto switch"). In some taps, auto-switching can also be blocked by the user (usually by turning the button in the up position).
In turn, in advanced electronic devices, such a diverter is made in the form of an electric button that closes the contacts that control the valve.

— Lever. Diverter in the form of a rotary lever. Most often, this lever directly controls the valve that switches the flow of water. This design is considered somewhat less reliable than push-button, but it is much simpler and cheaper, which makes it very popular — especially in relatively inexpensive taps. But in premium devices, this type of diverter can operate according to other, more advanced principles — for example, a lever can work as an electronic switch.

— Turning the spout. A r...ather rare and specific option: the role of the lever that controls the flow of water is performed directly by the spout, to the base of which a shower hose is connected. Such a control, usually, works as follows: while the spout is perpendicular to the tap body, water flows through it, and to switch to the shower, the spout turns, being under the tap. Such devices look interesting, and are convenient to use. On the other hand, they are quite complex and expensive, and the spout itself, for a number of reasons, is typically made quite short. Therefore, this variant has not gained popularity.

— Removable. A diverter located outside the body — usually between the tap itself and the spout. Typically, on one side of such a device there is a control element (most often a small lever or a rotary tap), and on the other, a pipe for connecting a shower hose. And the name "removable" suggests that this part can be easily removed if needed — unlike, for example, push-button or lever solutions, which are usually built directly into the tap body and are very difficult to dismantle or replace. Accordingly, after removal, the diverter can either be replaced with another one, or removed altogether by connecting the spout directly to the tap. This is the main advantage of this option: in case of malfunctions in the diverter, it can be removed without any problems for repair or replacement, while the tap (with the exception of the “shower part”) remains fully operational.

A feature found in bathtub and shower taps. The switch between the bath and the shower in such models is automated “in one way”: the shower must be turned on manually, and switching to the bath occurs without user participation, when the main tap is closed. In this way, unpleasant situations can be prevented when, after taking a shower, the tap remains switched to a shower, and careless turning on of the water can lead to a “flood”: even if someone forgets to switch the tap, thanks to the shower / bath auto switch, the next time you open it, the water will still flow through the spout.

Shower head mount placed directly on the tap's body. It is provided mainly in models with a shower set (see "Spout design") or the possibility of connecting it, although theoretically the mount can be installed on any tap that is intended to be used close to the shower head. Anyway, this function simplifies the holding of the shower set when not used — the hose does not dangle, and there is no need to look for a separate place for shower head.

Installation type for which the tap is designed. Nowadays, wall and sink taps (classic, freestanding and under the window), as well as built-in solutions, are most widely used — usually with installation in the wall, less often horizontally. Models built into the wall can be equipped with a bar(it plays the role of a kind of body and combines all the elements of the tap) or can be supplied without a bar(this option often allows you to choose the distance between the separate parts of the set). A special, rather rare and specific variety are floor taps.

Here is a more detailed description of each option:

— Wall (vertical). Models designed to mount to a vertical surface, typically a wall. This installation method is found mainly in bath and/or shower models, but can also be used in other types of taps— in particular, kitchen ones.

— Sink (horizontal). Installation on a horizontal surface such as a washbasin or kitchen sink. This method is extremely popular in models for kitchens and washbasins, it is also used in traditional bidet taps, but in other varieties, for a number of reasons, it has not gained much popularity.

— Sink (under the windo...w). A special kind of taps, which, due to their design, can be installed under the window, without preventing it from opening and closing. This is achieved in two ways. The first is the ability to tilt the spout towards the washbasin or sink, thereby hiding the tap in the sink bowl. The second method is based on a special mount of the tap body to its base, which makes it easy to pull it out of the “base” and put it next to it.

— Built in (wall). Mounting method in which most of the structure is hidden behind a wall or other vertical surface. Outside, there are only elements for which it is essential: spout, valves, shower set, etc. Recessed installation provides a neat appearance and saves space. In addition, many models of such taps allow you to choose the distance between individual external elements and their relative position. However, embedding is noticeably more difficult than usual installation, and repair/maintenance of such a tap can be quite difficult. This option is used in models for baths, showers, washbasins, as well as some types of bidet taps (see "Suitable for").

— Built in (horizontal). Another type of built-in taps, designed, in accordance with the name, for installation on a horizontal surface. They have the same main advantages and disadvantages as the in-wall taps described above, but differ in specialization: this type of installation is most popular in “washbasin only” models, it is somewhat less common in bath and shower taps.

— Floor. Installation on the floor using a special stand, thanks to which the main part of the tap is placed at the desired height. Such models are expensive, and the installation itself is quite complicated, it requires a spacious room with a specific organization of plumbing. Therefore, this option has not received much distribution: it is used mainly in designer taps made for freestanding bathtubs or washbasins.

Unit for mixing hot and cold water in wall-mounted taps and sensor models. Concealed mixing units are installed primarily at the stage of construction or overhaul of housing. The tap's units are hidden in the installation box directly in the wall. The external mixing unit usually has two openings for the supply of cold and hot water, a hose with mixed water which enters the tap. The outdoor control unit is equipped with a handle for adjusting the water temperature.

The number of holes required to install the tap. Models for sinks and kitchens with vertical installation (see "Type of installation") most often require 1 hole through which both hot and cold water are connected. Among the taps for the bath and shower, the most common models are with 2 holes, one for the "hot" and "cold" pipelines. For 3-5 holes, mainly models with built-in installation are designed, in which you have to bring out at least a spout and controls, and sometimes also a shower head with a switch.

The diameter of the holes required to install the tap. This dimension allows you to assess whether the tap will be compatible with a sink, wall, etc., what dimensions the additional parts should have to install it, and whether the holes will need to be widened or narrowed.

The maximum allowable thickness of the tabletop in millimetres for installing the tap into it without the need to modify the mounting hole.

The type of water pipes the tap is designed for.

— Hoses. With a flexible connection type, polymer tubes (hoses) are used to connect the tap to the water supply, which can bend well and are reinforced with a metal mesh for strength. This ensures ease and versatility of attachment — thanks to the flexibility of the pipe, it can be carried even in cramped places. On the other hand, such a supply is less durable and reliable than a rigid one. It is mainly used in models for kitchens and sinks (see "Suitable for"). Installation pipes may be included in the package of the tap; this point should be clarified separately.

— Rigid pipes. Such taps are designed for installing directly to metal water pipes. The advantage of this type is reliability and strength, the disadvantage is significant restrictions on the installation site: you either have to put the tap where the pipes were made during construction, or redo the communications, which is associated with great inconvenience and cost. On the other hand, such taps are usually used for bathtubs and showers, and in modern bathrooms, typically there are no problems with unsuccessful installation of pipes.

The type of power used in a tap with electronic components — for example, a non-contact model (see Tap Type) or a backlit device (see above).

The most popular nowadays are battery-operated mixers, while some of these models may also have the ability to be powered from the mains. In addition, there are purely network devices, as well as a rather specific option — mixers with combined battery power with a generator. Here is a more detailed description of all these types of food.

— Batteries. The main advantage of such mixers is ease of installation — they do not require electricity supply from the network, which eliminates the difficulties of laying wires. However the operating time on one set of batteries is limited, and replaceable batteries usually have to be purchased separately. On the other hand, the electronic components of mixers are usually not particularly “gluttonous” in terms of energy consumption, so the battery life period is often calculated not even in months, but in years. And when buying batteries, you can choose their brand at your own discretion, and often the type: either purchase inexpensive disposable cells and change them periodically, or spend money on batteries with a charger once and avoid additional expenses in the future.

— Network. Mains power is convenient because the user does not need to monitor the condition of the batteries and periodically change them — the electronics will work a...s long as there is voltage. The downside of these amenities is, first of all, some difficulty in installation: you need not only to install a mixer, but also to find a nearby outlet for the power supply and connect the wires, paying special attention to the quality of the insulation. After all, the device will have to work in conditions of high humidity, and even direct contact with water. On the other hand, such models operate from a low safe voltage (usually about 12 V) supplied from the power supply; so even with problems with insulation, you can not be afraid of electric shock. The second caveat is that when the electricity is turned off, the mixer can become completely useless.
In general, this option is especially suitable for plumbing used in public places — for example, toilets of stations, shopping centers, etc. Mains power minimizes service interruptions (no need to change batteries); and a power outage, usually, makes useless not only the mixer itself, but the entire room where it is installed. Although, of course, nothing prevents you from choosing a model with mains power and for home use.

— Network / batteries. Taps capable of using both types of power described above. Usually, in such devices, the main source of energy is the mains, and batteries are used as a backup option in case of power outages. Thus, the mixer, on the one hand, has an unlimited service life, on the other hand, it remains operational even when the mains voltage is lost. On the other hand, such versatility significantly affects the cost, despite the fact that it is not required so often; and the main drawback of network models — the need for laying wires — is also quite relevant in this case. Therefore, mixers with combined power supply are produced quite a bit.

— Battery / generator. Quite an original option: a combination of a generator driven by a stream of water and a battery. In this case, the battery is the direct power source for the mixer electronics, while the generator is used to recharge it as needed. Thus, the power supply is completely autonomous, independent of the mains; and additional maintenance for such devices is practically not required (unlike the same battery-powered models — see above). Installation of such a mixer is quite complicated, but most often it is less difficult than installing a network model. But the unambiguous disadvantages of this option include the complexity and high cost, which significantly limit its use.

— Brass. Alloy based on copper and zinc; at a relatively low price, it has good strength and corrosion resistance, due to which it has become widespread.

— Silumin. An alloy based on a combination of aluminium and silicon; it has good hardness and oxidation resistance, but it is rather brittle, and therefore it is used mainly in inexpensive models.

— Stainless steel. The most common material for inexpensive models. Steel is inexpensive and at the same time has high strength. Its disadvantage is a certain tendency to corrosion (especially with processing defects, even small ones), which practically does not affect everyday use, but can affect the durability of the tap.

— Zinc. Zinc products are similar in their main properties to the silumin products described above: on the one hand, they are inexpensive, on the other hand, they are quite fragile and not particularly durable. In addition, zinc is believed to be prone to corrosion, which can eventually degrade the properties of the water coming from such a tap and make this material unsuitable for kitchen use. Therefore, zinc bodies are not common, mainly among inexpensive bath and shower taps.

— Plastic. The simplest material used in the manufacture of taps. Due to its weak strength, it is not durable, but it does not rust. It is appropriate to use for sinks of rare use — for example, for a country house.

Type of additional finishing provided in the tap. This item can specify several options — this means that this model is available in different design options. And if the finishing material coincides with the body material, this means that there is virtually no additional coating; this is found, in particular, among taps made of stainless steel, which itself is quite resistant to corrosion.

In modern taps, the following types of finishing are used: granite, chrome, chrome with granite, chrome with gold, matte chrome, stainless steel (glossy or brushed), brass, nickel, copper, bronze, gold, as well as brushed in one color or another. Here are the features of each option:

— Granite. Granite is characterized by a pleasant appearance, moreover, it is available in an abundance of different colours, allowing you to choose a tap for the design of the kitchen. Of its advantages, it is worth noting high durability, absolute resistance to corrosion and good sanitary characteristics (prevents the growth of bacteria). The main disadvantage is the high...price.

— Chrome. Chrome plating is applied to metal surfaces primarily for corrosion protection; it has a characteristic shiny (almost mirror-like) appearance. Chrome provides high resistance to oxidation and damage, yet looks good and is inexpensive — as a result, it is one of the most widely used coating materials. Its main disadvantage is the tendency to get imprints on it over time; their removal is associated with certain troubles.

— Chrome/granite. The combination of chrome and granite finish in one product. See above for more details about the features of each of these materials, but here we note that their combination implies the presence of different types of finish in different parts of the tap. Thus, the design acquires a more original and stylish appearance, greater hygiene and resistance to contamination than pure chrome, while being cheaper than pure granite. And from the point of view of the overall design of a bathroom or kitchen, it is this combination that in some cases turns out to be the best option.

— Chrome/gold. The combination of chrome finish with individual "gold" sections. The features of chrome are described above, and the "gold" elements give the product a rich appearance, while a fairly large number of buyers prefer this combination to the “solid gold” finish.

— Matte chrome. A matte variation of chrome finish (see above). On such a surface, dirt, and prints are much less noticeable than on a classic glossy; in addition, it may be more suitable in design or simply more pleasing to the eye than glossy. At the same time, the creation of matte surfaces is associated with certain difficulties, and therefore they are relatively uncommon.

— Stainless steel (glossy). Stainless steel finish is generally similar in characteristics to chrome — it is durable and resistant to corrosion. However, such a surface is somewhat different in appearance and for a number of reasons it is used mainly in premium-class models — including taps made entirely of "stainless steel" (such models, in fact, have no finish).

— Stainless steel (brushed). Similar to matte chrome, such steel is more resistant to dirt than glossy (see above), otherwise it is completely identical to it.

— Brass. Brass coating is most often combined with a body made of the same material (that is, there is actually no special finish in such a tap). One of the advantages of such a surface is a pleasant golden hue, which is especially suitable for retro-style taps. At the same time, the cost of such products for a number of reasons turns out to be quite high, besides, they are prone to the appearance of hard-to-remove prints. Therefore, they are quite rare.

— Nickel. In terms of characteristics, nickel finish is similar to chrome and is used for the same purposes, however, for a number of reasons, it is much less common than chrome.

— Copper. Finish of characteristic reddish color. Copper can give an “old” look even to a modern product, and for retro-style taps, it can be simply irreplaceable. On the other hand, this material is expensive, in part because it is difficult for copper to provide sufficient corrosion resistance.

— Bronze. Bronze is an alloy based on the copper described above and is used similarly — mainly to provide an authentic look to retro-style taps. The main difference between the two materials is the color — the bronze is somewhat darker, and the red colour is not as pronounced in it (although specific shades in different models can also be different). In addition, this material is easier to make resistant to corrosion, so bronze products are much more common than copper ones.

— Gold. Yellow alloy finish to imitate the look of gold. It is used to give the tap a rich appearance, while at the same time it is expensive in itself, as a result of which it is used mainly in premium models — in order to emphasize the level of the product even brighter. On the practical side, like any material of this level, it is characterized by high resistance to oxidation, but resistance to pollution and ease of cleaning can be different (although in most cases these indicators are also on top).

— Brushed. A brushed finish that is applied specifically to give the product a certain color — most often black or white, but other options are also found. Accordingly, the main advantage of this option is a non-standard appearance: with paint, you can achieve colors that are not available with other types of finish. At the same time, any paint perfectly resists corrosion, and the differences between different models of taps with such a finish are mainly in durability and scratch resistance. These characteristics, usually, directly depend on the price category of the product.

The height of the tap, measured from its base or lowest point to the highest point of the spout. The height of the spout partly determines the installation possibilities — in fact, this is the minimum vertical free space that is required for the tap. In addition, in models with horizontal installation (see "Type of installation"), the spout height is related to the jet height (see below).

The distance from the extreme front to the extreme back of the tap determines the installation possibilities of the device. In comparison with the depth of the jet, it gives much more visual data precisely on the dimensions of the entire tap, especially for models where there is either no spout (built-in models) or the spout is not the longest part of the set (vertical taps).

Country of origin of the brand under which the tap is marketed. Usually, it is indicated by the "homeland" of the manufacturing company or by the location of its headquarters. The brands under which modern mixers are produced come mainly from the following countries (in alphabetical order): Austria, Belgium, Germany, India, Spain, Italy, China, Poland, Russia, Turkey, Czech Republic, Finland, France, Sweden.

There are many stereotypes associated with the “nationality” of brands and products, but most of them have no basis nowadays. First, the actual place of production is often different from the brand's country of origin. Secondly, the quality of the goods depends not so much on geography, but on the policy of a particular company and how carefully this very quality is controlled in it. Therefore, you should pay attention to the country of origin of the brand only if you fundamentally want or (do not want) to support a manufacturer from a certain state. Quality is best judged by the reputation of a particular...brand and the overall price category of the tap.

The warranty period claimed by the manufacturer for a certain tap model is the period during which the manufacturer guarantees the normal operation of the device. The specific terms of the warranty may vary, however, usually, it covers factory defects and malfunctions caused by the fault of the manufacturer or seller and discovered during normal use, without violating the rules; if such defects or malfunctions appear during the warranty period, the manufacturer undertakes the obligation to correct the situation at its own expense — up to replacing the tap with a working one.

Nowadays, you can find taps with a guarantee of 4 years, 5 years, 7 years, 10 years and even 25 years. In general, the longer the warranty period, the more reliable the product is, the higher its overall quality, ceteris paribus, but the more expensive it will cost compared to analogues.