The model 504 is an economical, small, high pressure relief valve having excellent set pressure control over a large pressure range to 6000 PSI. (6500 PSI for the 504H model) It stays bubble tight to within a few PSI of set pressure and reseats bubble tight even after many vent cycles. Safety wire holes are provided for optional locking of set pressure adjustment.

SPECIFICATIONS

• Set pressure: adj. 900 to 6000 PSI (6500 PSI for 504H)

• Leakage: bubble tight

• Max. flow (air): 100 SCFM at 3000 PSI 50 SCFM at 1500 PSI

• Equivalent orifice: .078 inch dia

. • Fluids: gas or liquid

• Inlet: 1/4" male NPT

• Outlet: side vent

• Size: 7/8" hex by 2.1" long

• Temperatures: -40F to 160F

• Materials: bronze, anodized aluminum, & Viton