Swing Check Valves price Introduction Stainless steel swing check valve has circular disc and relies on its own weight and medium pressure to block the back flow of the medium. The disc rotates around the hinge pin of the valve seat passage, which can prevent the medium from flowing backwards and weaken water hammer. Features 1.Compact construction and light weight. 2.Bolted cover or pressure seal cover provides easy maintenance from top; 3.Applicable horizontal or vertical installation; 4.The built-in hinge pin avoids the penetration of body shell and prevent leakage; Major Specification Nominal size: 2"~24"(DN50~DN600??/p> Nominal pressure: Class150~2500??N10~PN420??/p> Standard: BS 1868, API 594, ASME B16.34 Body material??F8, CF8M, CF3, CF3M, CF8C End connection??F, BW, RTJSwing Check Valves price website:http://www.jitaivalvegroups.com/check-valves/swing-check-valves/