A28H spring safety valve Valve Co., Ltd. specializes in the supply Shandong Everbright A28H spring full-Kai valve products for the whole Kai A28H spring safety valve safety valve latest pictures and parameters, if you need to know A28H spring safety valve Please telephone contact Valve Co., Ltd. and Shandong Everbright! Valve Co., Ltd. Shandong Everbright manufacturer specializing in the production valve spring safety valve, welcome new and old customers call to order! Breakdown and elimination method (1) does not return after the discharge valve seat. This is mainly a spring bent stem, the valve installation caused by malposition or jammed. Should be re-assembled. (2) less than the required pressure is on. The main constant pressure allowed; elastic spring aging decline. Tighten the screw should be properly adjust or replace the spring. (3) valve frequency hopping or vibration. Mainly due to the spring rate is too large. Should use appropriate spring stiffness; adjustment ring to adjust properly, so that the back seat pressure is too high. Should readjust the position of the adjustment ring; discharge piping resistance is too large, resulting in excessive emissions of backpressure. Discharge piping resistance should be reduced. _A28H With handle valve spring safety valve _ Everbright valve (Certified Merchant) Ltd provided by Shandong Everbright valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) strong, credible, Shandong Weifang ball industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Everbright valve into the brilliant and you work for a better future!