Single/Dual

• Single (642)
• Dual Assembly With Unions (637)
• Dual Assembly Without Unions (637)

Model Number

• 800 OP Series (383)
• 800 Series (408)
• 801 Series (384)
• 801DHC Series (240)
• 803 Series (254)
• CS5602A Series (240)
• Liquid Series (7)

Inlet Connection

• 1/2" (1916)

Inlet Connection Style

• BW (390)
• FNPT (401)
• MNPT (927)
• SW (198)

Outlet Connection Style

• FNPT (1376)
• SW (540)

Pressure Relief Setting

• Custom (119)
• 50 PSI (39)
• 75 PSI (119)
• 100 PSI (120)
• 125 PSI (117)
• 150 PSI (117)
• 175 PSI (117)
• 200 PSI (117)
• 225 PSI (117)
• 250 PSI (117)
• 275 PSI (117)
• 300 PSI (117)
• 325 PSI (117)
• 350 PSI (117)
• 375 PSI (117)
• 400 PSI (116)

Valve Finish

• Black Oxide Coated (147)
• Carbon Steel (147)
• Ductile Iron (296)
• Stainless Steel (1326)

Temperature Range

• (')-20°F to 275°F (1241)
• (')-400°F to 400°F (552)
• -20°F to 275°F (80)
• -400°F to 400°F (36)

Valve Capacity

• 20.7 GPM (2)
• 25.9 GPM (5)

Brands

• Cyrus Shank (1915)
• Parker Refrigeration Specialties (1)