For having upper and lower adjusting ring (oriented sets and have a seat adjustment ring) structure, the adjustment more complex. Seat adjustment ring is used to change the size of the valve between the channel and adjusting ring, thus changing the initial valve opening pressure when the valve between the chamber and the adjusting ring the size of the accumulation level. When elevated seat adjustment ring, the degree of pressure build-up increases, so that the valve opening ratio stage 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. As leakage at the sealing surface can lead to premature valve suddenly opened, but because this time the media pressure is not enough to keep the valve in the open position, the valve was then close the valve, then the valve occurrence frequency hopping. Seat notes: "Circle valve mainly used to reduce the proportion of stage and adjust the discharge pressure to open, but also have an impact on the pressure back seat. For the band structure recoil plate and seat adjustment ring is the use of seat adjustment ring to be adjusted. Unscrew the adjusting screw ring, people like a thin iron bar extending from the exposed screw tool, you can toggle adjustment ring on the teeth, so that adjustment ring turning left. When the adjustment ring to the left for the counterclockwise rotation, its elevated position valve manufacturers, discharge pressure and reseating pressure will be reduced. Conversely, when the adjustment ring to the right rotates clockwise Shandong valve position lower stainless steel valves, discharge pressure and reseating pressure will be higher. Each adjustment, adjustment: revolutions of the range should not be too large (usually several teeth can turn). After each adjustment screw should be fixed, it ends in the adjustment ring groove between two teeth, both to prevent rotation of the adjustment ring, not on the adjusting ring radial pressure. For security purposes, prior to toggle adjustment ring, it should be appropriate to reduce the inlet pressure relief valve (generally should be less than 90% of the opening pressure) to prevent sudden opening during adjustment of the valve, causing the accident. Shandong Everbright Valve Co., Ltd. has been committed to the field of industry leader in the valve, the valve to provide you with the latest knowledge, best service, the best technical adviser. If you have any questions, you can call us, we will try our best to provide you with quality services. We aspire to be the world's leading manufacturer of valves. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Valves | valve manufacturers | Everbright A38Y16C safety valve (certified merchants) Ltd. by Shandong Everbright valve. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) located in Weifang City, Shandong Province, Cravens District Bao Tong Street North Makers Industrial Park. Scraps and development in the wave of market economy, the current Everbright valve has a high profile in the ball, and enjoys a good reputation. Everbright valve made whole network business alliance certification, marking our service and management level has reached a new height. Everbright valve staff willing to work with all people of insight and common development, for a better future.