UNLOADERS, INJECTORS, VALVES & GUAGES CHECK VALVES - SWING ACTION Retain prime on pumps with low-lift capability n PSI: 150 n Brass Body, Swing (flapper) action n FPT Inlet, Outlet n Gravity Seal, No Spring Pressure PART NO. 8.709-352.0 PART NO. OLD NO. DESCRIPTION 8.709-378.0 310862 8.709-380.0 310864 8.709-381.0 310865 1/2”, FPT Inlet / Outlet, Gravity Seal 8.709-379.0 310863 3/4”, FPT Inlet / Outlet, Gravity Seal 1”, FPT Inlet / Outlet, Gravity Seal PSI 150 150 150 1-1/4”, FPT Inlet / Outlet, Gravity Seal 150 STAINLESS-STEEL CHECK VALVES n PSI: 150 n Temperature: 250o n PSI: 6500 n Rated PSI: 5800 n Temperature: 195o n Female x Female n Weight: 2.0 oz PART NO. 8.709-362.0 OLD NO. 8.709-361.0 310827 310828 DESCRIPTION FLOW RATE PSI 1/4” F x F 6.1 3/8” F x F 10.5 HIGH-PRESSURE CHECK VALVES F PART NO. 8.709-385.0 6500 6500 OLD NO. 8.709-384.0 310872 310873 8.709-386.0 310874 F n Machine-Cast Brass Bodies n FPT x FPT n Mount Horizontal or Vertical DESCRIPTION 1/2” 3/4” 1” PSI 150 150 150 TEMP 250o 250o 250o OLD NO. 8.709-351.0 310804 310806 8.709-353.0 310808 8.709-354.0 310811 CHECK VALVES n PSI: 1200 n Cracking Pressure PSI: 1 n Machined-Brass Body n Poppet Seal DESCRIPTION 1/4”, F x F 3/8”, F x F 1/2”, F x F 3/4”, M x M MATERIAL Machined Brass Body Machined Brass Body Machined Brass Body Machined Brass Body BRASS CHECK VALVES - SPRING LOADED Holds pump prime without overloading pump suction F F F BACKFLOW PREVENTOR - CHECK VALVE Protects water supply from harmful chemical backflow - will not allow "spike" pressure to push chemicals into supply line. Now required by many city and state regulations. n Machined-Brass Housing n Plastic Diaphragm Check n 3/4" Female Garden Hose Inlet (with Lock Screw) 8.709-356.0 8.709-357.0 n PSI: 2500 or 3000 Ball Check n Cracking Pressure PSI: 1 n Buna Seals PART NO. OLD NO. 2500 PSI Miniature Ball Check 8.709-356.0 8.709-357.0 310814 310815 8.709-358.0 n Stainless-Steel Check Ball n Machined-Brass Body DESCRIPTION MATERIAL PVC CHECK VALVE 1/4”, M x F 1/4”, M x M 3000 PSI Stainless Guided Ball and Quad Ring Seat 8.709-358.0 8.709-359.0 310820 310822 1/4”, F x F 3/8”, F x F Machined Brass Body Machined Brass Body Machined Brass Body Machined Brass Body Holds pump prime without overloading pump suction. n PSI: 125 n Cracking Pressure PSI: 1 n Temperature: 180o F n Choice of Connects n PVC Plastic Body n Stainless-Steel Ball Check n Designed for Harsh Chemical Applications PART NO. 8.709-367.0 8.709-369.0 8.709-370.0 8.709-373.0 190 OLD NO. 8.709-366.0 310834 310835 310837 310838 310844* *8.709-373.0 has Viton Seals Specifications, product descriptions and product availability subject to change without notice. DESCRIPTION 1/4” MPT x 1/4” Barb 1/4” Barb x 1/4” MPT 1/4” Barb x 1/4” Barb 3/8” Barb x 3/8” Barb 1/2” Barb x 1/2” Barb PSI 125 125 125 125 125 TEMP 180o 180o 180o 180o 180o F F F F F PART NO. n 3/4" Male Garden Hose Outlet OLD NO. DESCRIPTION 8.705-039.0 140060 MATERIAL Backflow Preventor Machined Brass Housing
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