The Shurjoint Model SJ-900 Swing Check Valve is a grooved-end check valve featuring a spring-loaded wide-open clapper and a non-stick leak tight EPDM rubber seal. With a rated working pressure of 300 psi (20 bar), the valve can be installed in the horizontal or vertical position (upward flow only). Valves are tested to API 598.
Warning: Piping systems must always be depressurized and drained before attempting to uninstall the SJ-900 valve.
The 10 Year Limited Warranty applies to manufacturing defects only and does not cover severe service/temperature applications or wear parts.
Note: The placement of check valves too close to sources of unstable flows may damage the system and reduce valve life. Sound piping practices dictate check valves should always be installed a minimum of five (5) times the pipe diameter downstream from pumps, reducers, elbows and the like. Distances between three (3) and five (5) times are allowable when flow velocity does not exceed eight (8) feet per second (2.4 mps). Distances less than three diameters are not recommended and will void any warranty.
Specifications
- Swing check valve
- Max. working pressure 300 PSI
- Grade E EPDM clapper facing
- Ductile Iron toASTM A536, Gr. 65-45-12 and or toASTM A395, Gr.65-45-15, min. tensile strength 65,000psi(448MPa).
- 2 1/2 in. to 4 in. Clapper is Type 304 stainless steel meets ASTM S240 & 5 in. to 12 in. clapper is Ductile iron meeting ASTM A536 Gr.65-45-12
- Body is ductile Iron that is specked to ASTM A536, Gr. 65-45-12 and or to ASTM A395, Gr.65-45-15, min. tensile strength 65,000psi (448MPa).
- Epoxy painted black ductile iron
- EPDM is good for cold & hot water up to 230°F (110°C)
- Also good for services for water with acid, water with chlorine, deionized water, seawater and waste water, dilute acids, oil-free air and many chemicals
- Not recommended for petroleum oils, minerals oils, solvents and aromatic hydrocarbons.
- Maximum Temperature Range: -30°F (-34°C) to 230°F (110°C)
Downloads
Product Manual (PDF Download)
