A check valve, clack valve, non-return valve, reflux valve, retention valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.
Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, or inexpensive. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal.
Check valve,also call non-return valve or one-way valve,is a valve that normally allows liquid or gas to flow through it in only one direction.It has two openings in the body,one for fluid to enter and the other for fluid to leave. Our check valves are available in a wide range of sizes and costs,valve body usually in cast steel,forged steel,cast iron,bronze etc,if you need other special check valve,pls remark when inquiry.
For marine check valve,we can offer ABS,LR,BV,DNV,CCS,NK,RINA etc certificate,pls feel free to send us yr inquiry if you are looking for any check valve.
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