Valve Co., Ltd. Shandong Everbright safety valve, through numerous engineering practice cases, continue to identify problems, correct the problems of high temperature and high pressure valves, valve wholesale and constant innovation, high safety factor valve, can effectively guarantee the safety of plant operations, the majority of Users can choose their own safety valve model according to their different working conditions, or have we Everbright technical staff to your selection. Technical terms: Rated displacement: refers to the actual emissions as a safety valve for the reference allowed that part. Equivalent calculation Displacement: refers to the applicable conditions of pressure, temperature, media properties and other conditions are the same nominal displacement, the calculation of the safety valve displacement. Frequency hopping: relief valve flap unusually rapid back and forth movement, in the movement of the valve contacts the valve seat. Flutter: abnormally rapid relief valve flap valve brand back and forth movement, in the movement do not contact the valve seat. Such non-direct acting safety valve safety valve can be divided into the pilot valve, safety valve driving force auxiliary device. Pilot valve is to rely on the media discharged from the pilot valve to drive or control. The pilot valve itself is a direct-acting valve, sometimes with other types of valves. Pilot safety valve for high pressure, large diameter occasions. The main valve pilot valve can also be designed to rely on the working medium to seal the form, or may be applied to much larger than the direct-acting valve mechanical load on the valve, which has a good sealing performance. At the same time, it moves less affected by back pressure. The disadvantage is that it is reliable safety valve with a main valve and pilot valve related action as a direct-acting valve as quickly, reliably, and more complex structure. Shandong valve manufacturers _ _ valve Valve Co., Ltd. Shandong by Shandong Everbright Everbright valve. Shandong Everbright Valve Co., Ltd. (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!