
Sempell Model VR500 High Pressure Check Valve
Forged steel piston type check valve designed for high temperature and high pressure applications wherever a reverse flow has to be avoided. The return spring allows reliable function even in vertical installations.
Features
• Stellited seat surface
• Piston made of 17 % Cr-steel
• Return spring for vertical installation
• Separated guiding bush
• Optional screw-down non-return configuration
Technical Data
Size range: DN 10 to 65 (NPS ⅜ to 3)
Pressure / Rating: Up to PN 500 / Class 2680
Temperature range: Up to + 600°C (+ 1100°F)
Connection: Butt weld ends acc. to ASME B16.25 or ISO 9692-1
Socket weld ends acc. to ASME B16.11
Design: Acc. to PED, EN/DIN or ASME
Applications:
All water-steam cycle applications with flow in one direction only and to protect systems that can be affected by reverse flow.

