
WAFER STYLE SPRING LOADED SINGLE DISC CHECK VALVE
MODEL SDR
VALVE FEATURES
STANDARDS
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ASME B16.5, B16.34, and B31.1
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API 594 and 598
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MSS-SP-25, MSS-SP-55
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API 6A and 6D (as applicable)
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MSS-SP- 61 (standard for the resilient seated metal seated when required)
