1-1/2\” In-line Ball Cone Check Valves Bronze Solder End EPR-Seated Apollo #61-607-01 The Apollo CVBE Soft Seat check valves offer reliable tight shut-off protection against reverse flow and corrosion resistance using proven ASTM quality materials made in the USA. Ideally suited for hydronic heating and other low flow applications. Soft seat allows more resistance to vibration and may be installed in both horizontal and vertical upward flow applications. Do not use in reciprocating air compressor service. FEATURES Resilient EPR Soft Seat Superior Shut-off Spring Actuated Several Pressure Options Seat Material Options 0.5 PSI Opening Pressure Standard Spring Actuated Flow Straight-through Design Efficiency RPTFE Ball Cone for Chemical Resistance 100% factory tested Made in the USA Canadian Registration Number 0C11218.5C PERFORMANCE RATING Maximum Pressure: 400 psi (27.5 bar) Maximum Temperature: EPDM 250F (121C), Viton 400F (204C), Nitrile 250F (121C) MATERIAL SPECIFICATIONS Body: Cast Bronze C84400Retainer: ASTM B16 BrassSpring: AISI 316 Stainless SteelSeat: EPR/EPDM RubberBall Cone Check: RPTFE, 15% Glass FilledStem: ASTM B16 Brass OPTIONS 0 psi Cracking Pressure (no spring)0.5 psi Cracking Pressure (Standard)5 psi Cracking Pressure (1/4-1 Only)10 psi Cracking Pressure (1/4-1 Only)Nitrile SeatViton Flouroelastomer SeatOxygen CleanedSatin Chrome finishBSPP Thread (1/2 1 Only) Cut sheets are available on our Downloads page. 6160701
