Product description锛?/strong> Swing check valve adopts internal rocker arm swing structure, except for flange sealing gasket and sealing ring, there is no overall external leakage point, to eliminate the possibility of valve leakage. The swing check arm is connected to the disc in a spherical configuration, providing the disc with a certain degree of freedom in a 360 degree range with appropriate micro-position compensation. Design specification: Valve name:Aluminum bronze check valve Design criteria:GB/T 12237, API 6D, API 608,EN 13709,DIN 3357 Nominal size:DN15---DN1600锛?/2----64鈥?/p> Nominal pressure:0.25---42.0(Mpa)锛?5LB---2500LB Material:Aluminum bronze Applicable medium:Temperature is -29 ~ 300鈩?fresh water, sea water and other media Quality control We have QC person stay on the production lines do to the inspection. All products must have been inspected before delivery.we do inline inspection and final inspection. 1.All raw material checked once it arrive our factory. 2.All pieces and logo and all details checked during production. 3.All packing details checked during production. 4.All production quality and packing checked on final inspection after finished. Q:How about Biyi鈥檚 after-sale policy and term? A:Wenzhou Biyi Promise 1 year guarantee for regular items as usual. Q:Can we cooperate with Biyi ask for agent or exclusive agency? A:Of course welcome.Customized Check Valve website:http://www.biyivalve.com/check-valve/