Factory wholesale Hot Water Boiler Pressure Relief Valve - ANSI/DIN/JIS Stainless Steel Investment Casting 304/316 Bsp/NPT Female Thread Spring Check Valve Lost Wax Casting Parts, All Size Check/Butterfly/Choke Valve – Junya

Acheck valve,clack valve,non-return valve,reflux valve,retention valveorone-way valveis avalvethat normally allowsfluid(liquidorgas) 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 forfluidto 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.

An important concept in check valves is the crackingpressurewhich is the minimum differential upstream pressure between inlet and outlet at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.

*Our wax casting product processed by 79 steps with high standard and 100% inspection. Along with the power of our advanced machine, quality is something you do not need to worry about.Hebei Junya Precision Machinery Co. Ltd is a high-tech enterprise combine designing, tooling developing, casting, machining, surface treatment, inspection, sales and service all together. Founded in 2017, located in Huanghua, Hebei. Junya now covers an area of more than 5000 square meters.With a massive research & development environment, Junya utilized market-leading technology and introduced various of advanced equipment to ensure the stringent quality in production.Under a powerful management team, the company has growing to the group with more than 100 employees. Product offerings range from Stainless Steel Pipe Fitting, Quick Joint, Ball Valve, Check Valve, to Marine Hardware and Auto Parts. The material are 304, 304L, 316, 316L, SF8M, WCB, 1.4408, etc.-Quality- -Creativity- -Consistency-These words are Junya slogan, and also philosophy that drives the company to offer the superior service you are looking for.