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 valve wholesale safety valve calculate emissions. 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 back and forth movement, in the movement do not contact the valve seat. Safety valve opening pressure adjustment: To ensure accurate opening pressure value, should make adjustments in the medium conditions, such as media type, temperature as close to the actual operating conditions. Media types to change, especially when the media is not the same accumulation of state (for example, from liquid into vapor) Weifang valve opening pressure changes often. Working temperature rises valve type, opening pressure is generally lower. It is adjusted at room temperature and used at high temperatures, the set pressure value at room temperature should be slightly higher than the required opening pressure. To what extent the valve structure and material selection have a relationship should be based according to the manufacturer's instructions. Valve structure are two major categories: spring-loaded and leveraged. Spring means sealing valve and valve seat by spring force. Leveraged rely on the force of the lever and hammer. With the large capacity needs, harboring a pulse valve, also known as the pilot valve, the main valve and the auxiliary valve. Shandong Everbright Valve Co., Ltd. specializing in the production valve manufacturers, welcomed the new and old customers to order our products! Shandong Everbright valve (Figure), Shandong valves, valve by valve Shandong China Everbright Limited. Shandong Everbright Valve Co., Ltd. (www.sdgdfm.com) is a professional "valve" of the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "Everbright" brand has a good reputation. We adhere to the "service first, customer first" principle, so that the valve Everbright won the trust of all the customers in the ball valve, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!