CHECK VALVE Features: 1) Rational structure, reliable sealing, excellent performance, pretty appearance 2) Co-radix alloy welded sealing surface, anti-wearing, erosion-proof and long user life 3) Inside-set bolt-bearing structure reduces leakage and reliable use 4) Under pressures NMT 16.0Mpa, class 1500, valve belly with self-tightening structure offers a tighter sealing for a higher medium pressure Technical specifications: 1) Design standard:.API6D 2) Face to face:.ASME B16.10 3) Flanged ends: ASME B16.5 4) Test and inspection:.AP1598 WE ALSO OFFER WAFER BUTTERFLY CHECK VALVE ,LIFTING CHECK VALVE , SWING CHECK VALVE ETC. For more information please feel free to contact WENZHOU CAMINIX VALVE CO.,LTD