Such non-direct acting valve safety valve can be divided into pilot safety 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 forms of valves. Pilot valve suitable for high pressure, large diameter occasions. The main valve pilot valve can also be designed to rely on the work of the media to seal the form, or can be applied much larger than the direct-acting valve mechanical load on the valve, which has a good sealing performance. Meanwhile A27H spring inching valve manufacturers, it moves very little affected backpressure. The disadvantage of this valve is its reliability with the main valve and pilot valve related A27H spring inching valve, direct action is not as fast-acting valve, spring inching valve A27H reliable vendors, but the structure is more complex. Opening pressure adjustment: ① before valve factory, should be adjusted by one of its opening pressure to the setting value of user requirements. If the user make spring working pressure level, the lower limit should apply general level of the factory adjustment pressures. ② users before the safety valve is installed on the protected equipment or before the installation, you must re-adjusted at the installation site, in order to ensure the safety valve set pressure value to meet the requirements. Safety valve according to the working temperature is generally divided 1. room temperature relief valve is installed only on the temperature in heating, air conditioning or water system's safety valve 110 ℃. 2. High temperature relief valve is a safety valve means specifically used in the solar system and the mold temperature of 180 ℃ temperature systems. Valve Co., Ltd. Shandong Everbright valve manufacturer specializing in the production, welcome new and old customers to order our products! Everbright valve manufacturers | spring inching valve | safety valve provided by Shandong China Everbright Limited valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) located in Weifang City, Shandong Province, Bao Tong Street North Cravens District Makers Industrial Park. Scraps and development in the wave of market economy, the current Everbright valve has a high profile in the ball, and enjoy a good reputation. Everbright valve made of the 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.