Rotation angle
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.
Stop valve
Material and design features of the valve (valves) responsible for opening and closing water in the tap.
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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.
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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.
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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.Manufacturer's warranty
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.
