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API6D design swing check valve flange connection
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The swing-type check valve is designed according to the API6D specification and is applied to the pipeline of crude oil and natural gas to prevent the medium from flowing backward. The fully open design can meet the cleaning ball passage and facilitate pipeline maintenance. For large diameter valves, optional buffer damping device can be used to delay the valve closing time to protect the sealing surface. American standard high pressure swing check valve product specifications
Size: 2 inches----48 inches DN50-DN1200
Pressure rating: 150LB, 300LB, 600LB, 900LB, 1500LB, PN1.6-PN42
Body material: carbon steel, stainless steel
Connection method: RF, RTJ, B.W
Design feature application
Swing valve design
Suitable for sweeping the ball
Optional soft or hard seal construction
Welded or threaded race
Optional weight damper for onshore oil and gas
Offshore oil and gas
Refining
Chemical industry
Petrochemical
Power plant
