|Checks back flow of water and sewer gas with Full-flow design
This valve is designed for low pressure sump pump applications and
can be mounted either vertically or horizontally. The 2" full-flow design
provides minimal flow restriction and meets BOCA (P.604.2). No
pipe threading is required.
The flexible union slips over ABS, PVC, steel pipe or copper pipe and
the couplings on the 1-1/4" to 1-1/2" size can be mounted in either
configuration on either end for connecting dissimilar size pipe diameters.
The flexible couplings isolate motor noise from the piping and
the internal flapper design reduces water hammer when the pump
Valve bodies are made of PVC. The neoprene flapper is weighted
with non-corrosive backing plates and stainless steel rivet and bends
over a radius instead of a 90° edge for improved flapper life.
Valves are rated at 4.3 psi - 10 ft. of head with flex couplings and 25
psi if solvent welded to PVC pipe.