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Oil Safety Valve 1/2" FNPT

Item #:P131-40 
Manufacturer Item: OSVA-50
Webster Fuel Pumps P131-40 Oil Safety Valve 1/2" FNPT
Webster oil safety valves are ideal for use in oil supply systems which have from 0 to 60 psi supply line pressures on the inlet side of the valve. Requires a sustained VAC uum on the outlet side of the valve for fuel to flow to the burner pump. The OSV series provides automatic shut-off for the oil supply in case the line between the device and the burner is broken. Many state and local codes require such a device and also limits inlet pressure on burner pumps to a maximum of 3 psi. Available in 3/8 and 1/2 NPTF porting.
  • Provide important protection in oil burner supply systems with pressurized supply lines
  • By isolating burner fuel pumps from supply line pressure sources a supply pump or overhead tank, the osv relieves ores sure strain on fuel pump inlets and seals and prevents tank siphoning and spilling caused by accidental line breaks
  • OSV is mounted close to burner assembly
  • OSV operates as pressure reducer with supply line pressure on the valve inlet side and fuel pump VAC uum on the valve outlet side
  • 1/2 - 14 NPTF port size
Sid Harvey Item #:P131-40: Replaces Part #:'s : 2P397

Oil Valves

Brand Name
Webster Fuel Pumps
Oil Safety Valve
Inlet Size
1/2" FPT
Outlet Size
1/2" FPT
Oil Safety Valve 1/2" FNPT