Product Description

Check valves 1. Face to Face and End to End dimension: ASME B16.10 2. Flange dimension: 24" and smaller valves: ASNE B16.5 26" and larger valves: ASME B16.47 series A 3. B. W. End to ASME B16.25 4. Wall Thickness: 24" and smaller to API 600, BS 1868 26" and larger to manufacturer standard 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/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. An important concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. Typically the check valve is designed for and can therefore be specified for a specific cracking pressure.