DEMA Magnetic, "Snap-acting" Float Valves. Now you can have the reliability of a magnetic float valve for maintaining liquid levels in tanks, drums or reservoirs. Valve is pilot-operated diaphragm style.

Level differential is approximately 3". A 6" float with 9" chain is standard. Maximum operating pressure is 60 PSI. Maximum fluid temperature is 140° F.

STANDARD FEATURES include Stainless Steel internal parts. BUNA-N seals and diaphragms. Poly float.

Model 440N: Inlet and outlet ports are 3/8" FPT. 3/4" FGHT adapters are included.

Model 437N: 3/4" FPT inlet and outlet ports. (No Bracket)