Valve Co., Ltd. Shandong Everbright adhere to the "equality and mutual benefit, stress practical results and common development" principles of cooperation, "trustworthy, durability, Boli" business approach, continue to "honesty, quality assurance," the General, innovation, new providing customers with excellent service, in order to establish long-term stability, and work together to A38Y16C Double spring-loaded safety valve with the rest of the friends, create brilliant. Valve Co., Ltd. Shandong Everbright valve manufacturer specializing in the production, welcome new and old customers to order our products! For having upper and lower adjustment ring (on the guide sleeve and have a seat adjustment ring) structure, the adjustment to be complicated. Seat adjustment ring is used to change the size of the ring between the valve and adjust the channel, thereby changing the initial valve opening pressure between the valve and the extent of the adjustment ring accumulation chamber size. When elevated seat adjustment ring Shandong valve price, increasing the degree of pressure build-up in Shandong valve, allowing the valve to open the stage proportion decreases rapidly to a sudden sharp turn. Therefore, increased discharge pressure valve seat adjustment ring can be reduced. It should be noted that the seat adjustment ring should not rise too close to the valve. Above, the leak at the sealing surface could cause the valve to open suddenly and prematurely, but because this time the media pressure is not enough to keep the valve flap in the open position, the valve was then closed, then valve occurrence frequency hopping. Seat Pitch: "ring main valve to reduce the proportion of stage and adjust the discharge pressure to open, but also have an impact on the pressure back seat. A selection principle, steam boiler safety valve, generally used to open a full open valve spring 0490 series; 2, a liquid medium with a safety valve, generally used inching valve spring 0485 series; 3, air or other gas medium with a safety valve , generally used in the entire Kai spring safety valve; 4, liquefied petroleum gas or LPG rail tank car tank with a safety valve, generally used in the entire Kai built safety valve; 5, export production wells with safety valve, generally used in pilot safety valve; A38Y-16C valve, Everbright valve (certified), the safety valve provided by Shandong China Everbright Limited valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) Shandong Weifang, ball leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Everbright valve leadership with the staff warmly welcome all inquiries negotiations to create a better future for China Everbright valve.