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(s) responsible for opening and closing water in the faucet.
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Rubber. Material for valves in inexpensive single and double-handle faucets (see "Faucet Type"). Rubber is low-cost, easy to replace, and resistant to water with impurities (unlike ceramics). On the other hand, rubber valves have a relatively short lifespan — as they wear out, they begin to leak and need to be replaced from time to time.
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Ceramic. These valves are based on a pair of metal-ceramic plates polished for maximum contact and sealing. They can be used in both handle and lever faucets (see "Faucet Type"). This material is much more durable than rubber, and in the case of a single-lever faucet, it also makes adjustment easier, as the friction between the plates is minimal, making it much easier to move the lever than with a ball valve. The downside of ceramics is their sensitivity to water contamination with solid particles — if they get between the plates, they can compromise the valve's seal. Therefore, it is recommended to install filters before such faucets.
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Electromagnetic. A type of valve used in all contactless faucets (see "Faucet Type"), as well as some models of other designs — in particular, button and single-lever with touch. As the name suggests, an electromagnet is responsible for opening and closing the water in such mode
...ls. In most models, the valve has only two positions — "open" and "closed" — and does not allow for pressure adjustment. However, a temperature regulator may be provided — for example, in the form of a corresponding lever (see above). Electromagnetic valves are quite efficient but expensive, and they also require external power to operate.
— Ball. A type of valve originally developed for single-lever faucets (hence the tendency to call such devices "ball valves," which is technically incorrect). This valve is based on a spherical element with a special slot through which water is supplied; as the lever moves, the slot takes different positions, determining the water pressure and temperature. In household faucets, this type of valve is considered outdated and is used very rarely.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.
