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How to choose water supply valve

Posted by Bundor valve
This article through the form of comparison, for you to introduce the selection of common valves in water supply system.
 water supply valve
Gate and butterfly valves
The main disadvantage of butterfly valve is that the butterfly plate occupies a certain cross section of water, increasing a certain head loss;Although the gate valve does not have this problem, the height of the large diameter vertical gate valve affects the soil covering depth of the pipeline, the length of the large diameter horizontal gate valve increases the horizontal area occupied by the pipeline and affects the arrangement of other pipelines.
In order to reduce the depth of soil covering in water supply pipe network, butterfly valves are generally selected for pipelines with larger diameters.The impact on the soil depth is not big, try to choose gate valve.
From the use of the butterfly valve, the failure is higher than the gate valve.Therefore, if conditions permit, in the water supply network, as far as possible to choose the gate valve.
Ball valve, plug valve and butterfly valve
Ball valve has the advantages of simple structure, small flow resistance, reliable sealing, flexible action, easy maintenance and operation.The plug valve also has a similar advantage, except that the water area is not round.Ball valves and plug valves are heavier than butterfly valves, casting and processing difficult, the price is more expensive, generally suitable for small and medium-sized pipe.In recent years, the production cost of ball valves has been reduced due to the improvement of casting technology.Therefore, the feasibility of using ball valves in large diameter pipelines is worth exploring.