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