Special Purpose Valves

DEMA’s special purpose valves are “manifolding” diaphragm valves constructed of 30% glass filled polypropylene or glass filled nylon that can be joined together to form a manifold without bushings or connectors. The P404J is made from glass filled polypropylene, has an EPDM seal, is rated up to 125 psi, and has ½” pipe and 3/8” orifice size. The 466P is made from glass filled nylon, has a Viton seal, is rated up to 150 psi, and has 3/4” pipe and orifice size.

P404J

Model No.
Pressure Differential
Body Material
Pipe Size N.P.T.
CV Flow Factor #
GPM @ 60 psi (cv # x √ psi)
min/psi
max/psi
P404J
3
150
GF Poly
1/2
1
7.75