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Providing a tight shutoff with liquid media, this APOLLO ball cone spring check valve has a straight-through design that assures a minimum change in velocity and protects against reverse flow. Model is spring-loaded for fast seating action and requires no radial alignment.Note: This ball cone spring check valve is not recommended for use with reciprocating pumps and similar applications that may induce repetitious vibrations. Item: Ball Cone Spring Check Valve Material of Construction: Stainless Steel Size: 3/4" Connection Type: FNPT Length: 2-7/8" Width: 2-7/8" Overall Height: 1-3/8" Max. Steam Pressure: 150 psi SWP Max. Water Pressure: 400 psi Non Shock CWP Cracking Pressure: 0.5 psi Max. Temp.: 350 Degrees Mounting Position: Vertical or Horizontal Seat Material: RPTFE Spring Material: 316 Stainless Steel