Fulflo SVB-Series Hydraulic Bypass Relief Valves are Underwriter Listed, range in size from 3/8" - 1" and operate efficiently with liquids of any viscosity at pressures from 7 - 500 p.s.i. The SVB valves are of brass construction with threaded connections.
Primarily designed for use with fuel oils on oil burner service, the SVB valves may be used whereever Underwriter Listed valves are required. Each valve is pre-set to the specified pressure and is equiped with a limiting device to prevent over-adjustment. The valves can be mounted in any position. Our valves are for liquids only, no air gas or steam, but we can also offer specialized valves for your specific application.