Model Number

• 800 OP Series (80)
• 800 Series (85)
• 801 Series (80)
• 801DHC Series (32)
• 805R Series (32)
• 850/851 Series (78)
• 850R/851R Series (78)
• CS5602A Series (32)

Inlet Connection

• 1/2" (309)
• 3/4" (52)
• 1" (84)
• 1-1/4" (52)

Outlet Connection

• 3/4" (309)
• 1-1/4" (32)
• 1-1/2" (156)

Pressure Relief Setting

• Custom (33)
• 50 PSI (5)
• 75 PSI (21)
• 100 PSI (21)
• 125 PSI (21)
• 150 PSI (33)
• 175 PSI (33)
• 200 PSI (33)
• 225 PSI (33)
• 250 PSI (33)
• 275 PSI (33)
• 300 PSI (33)
• 325 PSI (33)
• 350 PSI (33)
• 375 PSI (33)
• 400 PSI (33)

Valve Finish

• Anodized Aluminum (78)
• Black Oxide Coated (49)
• Carbon Steel (49)
• Ductile Iron (78)
• Stainless Steel (243)

Temperature Range

• (')-20°F to 275°F (373)
• (')-400°F to 400°F (91)
• -20°F to 275°F (27)
• -400°F to 400°F (6)

Brands

• Cyrus Shank (497)