SENTINEL Back Pressure Valve with ANSI 150# Flanges.
- All valves come with PVC top. Stainless or CPVC also available upon request
- All valves come with standard 5-150 PSI spring
- If low pressure, 5-50 PSI (L) is required, a low pressure spring can be installed upon request (No price adder)
- All 1.5", 2", 3" & 4" Pressure Relief Valves are two port connections
NOTE: 3" and 4" models not available in PTFE Bodies