Check Valve factory Product Description Price: The price is changing because of material cost and exchange rate. Please give me your contact information, I will update the newest price to you * Nominal size: 4"-180", DN100-4500 * Pressure rate: Class 600LB-2500LB,PN100-PN420 * Pressure grade:1.0-4.0MPa * Connection Type: Flanged ends * Material: WCB, WCC, WC6, WC9, LCC, LCB, CF8, CF8M, CF3, CF3M, A1105, LF2, F91&Other material as client required * Operation: Hand wheel, Bevel gearbox, Pneumatic,Electric * Suitable Temperature: -29掳C~425掳C * Connection: ASME B31.4 , ASME B31.8 ,ANSI B16.25,ANSI B16.5 ASME B16.47A * End to End: API 6D, ASME B16.10 * Test and Inspection Standard:API 6D,API 598,EN12266 * Country of origin:China A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.[1] 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, and 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 cracking pressure which 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. Heart valves are essentially inlet and outlet check valves for the heart ventricles, since the ventricles act as pumps. Hot Tags: trunnion ball valve, China, suppliers, manufacturers, factory, Lug Triple Offset Butterfly Valve, Cryogenic Ball Valve, Wafer Type Butterfly Valve, Wafer Double Offset Butterfly Valve, EPDM Butterfly Valve, API 609 Triple Offset Butterfly Valve FAQ Q: How can I get the sample? A: We provide free sample for your evaluation. We need to know the specification of the yarn you need. Standard sample will be free, but you may pay the delivery cost. Q: Are you a trader or manufacturer ? A: We are a manufacturer, we have the whole product line.Check Valve factory website:http://www.biyi-valves.com/check-valve/