MORRISON BROS. Morrison Bros. Model 910 2 in. NPT Anti-Siphon Valves - 5 - 10 Feet W.C. 910---2100 AV

Anti-siphon valves are used to help prevent the accidental siphoning of a product from a tank in the event of a leak downstream below the liquid level. Features Normally closed Compatible in suction or pressurized systems Unique spring design allows for optimum opening pressure High flow at optimum pumping pressures Four elevation ratings available Tamper-proof cap to ensure accurate elevation ratings 90° configuration for easy piping from tank top to grade level This valve can be installed in both horizontal and vertical piping Integrated thermal expansion relief set at approximately 25 PSI Construction Details Body: Ductile iron (e-coated) 2 in. NPT threads Cap: Stainless steel Spring: Stainless steel Plunger: Stainless steel with Viton® disc Thermal expansion valve: Stainless steel with Viton® seal Certification Listings UL Listed