OSV38 - Webster - OSV38 BIO Oil Safety Valve plastic and a variety of

plastic and a variety of other materials

One-Piece Forged Construction: The hammer is made from a single piece of forged steel

and a squeeze-open

fully polished to resist rust and corrosion

Part Number: FRS-2-18

OSV38 - Webster - OSV38 BIO Oil Safety Valve plastic and a variety ofThe Webster OSV38 BIO Oil Safety Valve is a vacuumoperated safety device designed to protect oilfired heating systems from fuel spills, siphoning, and excessive inlet pressure. Installed close to the burner, the OSV38 automatically allows oil flow only when a sustained vacuum is created by the burner fuel pump, and immediately shuts off fuel if a leak, line break, or loss of vacuum occurs. By isolating the burner fuel unit from upstream pressure