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The most important part for faucet - the valve

Date:2016-07-09

Profile of valve

valve element is one of the most important parts for faucets, valves and other fluid control system components. Valve is a component which with direction control,pressure control or flow rate control by its interior turning.Each faucets’s switching control needs a valve,the quality of valve is the important evidence to assess the quality of the entire faucet,or you can think the most important thing to faucet is valve.

steel ball valve and ceramic valve is the common faucet valve.Steel ball valve is good at resist pressure, but the drawback is the seal rubber seals is easy to wear and tear.Compare to steel ball valve,ceramic valve has good better performance in heat-resisting wear-resisting,also ceramic valve have good sealing performance,so its lifetime is very long and with so much opening times,not easy to cause water nozzle leaking for wear and tear of valve.The faucet with ceramic valve,hand feeling is more comfortable, smooth,open and close rapidly.we can not see the valve when we are buying faucet,but we can simply judged the quality of valve based on hand feeling when turning handle. Generally,without block sense,feeling slight,that may be a good valve,but not 100% sure.

There are three kinds of common valve core: stainless steel ball valve, ceramic valve and roll shaft valve. The common characteristic of these 3 valve is:the valve is integral,easy on installation maintenance and replacement.


Roll shaft valve

The advantage of roll shaft valve is: handle rotation smooth, easy to operate,comfortable hand feeling, ageing resistance, resistance to wear. But as old-fashioned valve,it has been gradually can not meet the demand of people for valve,so will gradually eliminated by the market. Roll shaft valve core is very rare in common faucets.

roll shaft valve

Valve brand

Abroad: Spanish Sedal, Hungary Kerox

Taiwan:KCG valve,Hain-Yo valve

China:Wanhai valve,Mingshi valve

many international valve brands had built factory in China to supply the mainland directly,such as Sedal, KCG


Ceramic valve

Ceramic valve:deformation of ceramic material is very small,has higher bonding strength than metal.And ceramic have high performance in tensile strength, compressive strength, elastic modulus and hardness,However,ceramic is "brittle" and difficult to machining,limits its application scope.

Over the last decade, due to the development and progress of martensitic phase change toughening technique,composite Technology and nano-ceramic,had made greatly improved for "brittle" of ceramics,its toughness and strength has been greatly improved,applied range is also expanding, such as the application as the faucet valve to be greatly welcomed. affordable,less water pollution, good wear resistance,good sealing performance,and improvements for the “brittle”,to make ceramic valve been widely used.Currently,most faucet had been used ceramic valve on the market.

ceramic valve

Stainless steel ball valve

Stainless steel ball valve is high-tech content,some high-grade sanitary ware brand use laser technology processing irregular seven hole stell ball valve, as a new faucet valve for the newest product.Insiders think that this valve is suitable for poor water quality area.because it is not affected by water impurities or shorten service life.And steel ball valve handle have larger turning angle to control temperature accurately,ensure hot water can be flowed promptly and accurately to saving energy.

However, the cost of stainless steel ball valve is higher than other types,and production process requirements is much higher,suitable for poor water quality area.

stainless steel ball

Identification methods for valve.


"simple way" to identify faucet valve:

1.To feel if there is blocked feeling when you are turning off/on the faucet(if so,the valve is bad).

2.Turning off/on the faucet in half,the handl feeling of upper half and lower half is not different(just high-grade valve have this characteristic)

3.Good valve,you will feel very slight when you are turning off/on faucet.

4.Also turning off/on the faucet,to feel if there is oil damping feeling,blocking feeling,if no blocking feeling and with damping feeling,just buy it.