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通径:DN15~DN25 设计标准:API 6D
The design standard of check valve is according to the requirements of API6D standard: the structural length is ASME B16.10 standard, the flange standard: ASME B16.5 standard, the wall thickness standard: ASME B16.34: the pressure test standard: API598 standard; The nominal diameter contains 1/2"-3/4"-1", and the nominal pressure is 150LB.