Single/Dual

• Single (539)
• Dual Assembly With Unions (274)
• Dual Assembly Without Unions (274)

Model Number

• 800 OP Series (47)
• 800 Series (51)
• 801 Series (48)
• 801DHC Series (48)
• 803 Series (51)
• 804 Series (48)
• 804R Series (48)
• 805 Series (48)
• 805R Series (48)
• 812 Series (48)
• 813 Series (48)
• 814 Series (48)
• 815 Series (48)
• 850/851 Series (78)
• 850R/851R Series (78)
• 901/903 Series (104)
• CS5602A Series (48)
• CS5602B Series (48)
• CS5602C Series (48)
• CS5602R Series (48)
• Liquid Series (6)

Inlet Connection

• 1/2" (536)
• 3/4" (196)
• 1" (199)
• 1-1/4" (104)
• 1-1/2" (52)

Inlet Connection Style

• FNPT (931)
• MNPT (156)

Outlet Connection

• 3/4" (296)
• 1" (336)
• 1-1/4" (147)
• 1-1/2" (126)
• 2" (130)
• 3" (52)

Outlet Connection Style

• FNPT (957)
• MNPT (130)

Pressure Relief Setting

• Custom (73)
• 50 PSI (6)
• 75 PSI (53)
• 100 PSI (53)
• 125 PSI (51)
• 150 PSI (71)
• 175 PSI (71)
• 200 PSI (71)
• 225 PSI (71)
• 250 PSI (71)
• 275 PSI (71)
• 300 PSI (71)
• 325 PSI (71)
• 350 PSI (71)
• 375 PSI (71)
• 400 PSI (71)

Temperature Range

• (')-20°F to 275°F (1011)
• -20°F to 275°F (70)

Valve Capacity

• 20.7 GPM (2)
• 25.9 GPM (1)
• 36.5 GPM (3)

Brands

• Cyrus Shank (1087)