Non-return valves or check valves are valves that normally allow fluid to flow through it in only one direction. 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.

• Certificate: UL Listed / FM Approved
• Standard: EN 1074-3
• Connection: Flanged as EN 1092-2
• Temperature: 0°C to 80°C
• W. pressure: PN 16 / PN 25
• Surface: FBE coating as AWWA C550