Technical terms: Rated Displacement: refers to the actual emissions as a safety valve for the benchmark allowed that part. Equivalent calculation Displacement: refers to the applicable conditions of pressure, temperature, media properties and other conditions are the same nominal displacement A27H spring inching valve manufacturers, valve displacement calculations. Frequency hopping: safety valve valve unusually rapid back and forth movement, in the movement of the valve seat contact. Chatter: safety valve valve unusually rapid back and forth movement, in the movement of the valve does not touch the seat. Spring safety valve safety valve opening height is greater than or equal to 1/4 of the flow channel diameter. The discharge area is the safety valve seat throat smallest cross-sectional area. Its course of action is part of two spring-action A27H inching valve must lift mechanism can be achieved by means of a wide open places, safety valve is mainly used for gas medium. Valve Co., Ltd. Shandong Everbright manufacturer specializing in the production valve spring inching valve A27H offer, welcome new and old customers to order our products! Equipment or pipeline A27H inching valve springs suitable for ≤200 ℃ operating temperature of the water, air, steam and other media. A27Y applicable to operating temperature ≤200 ℃ have equipment or pipeline corrosive media, as the overpressure protection device. Valve Co., Ltd. Shandong Everbright valve manufacturer specializing in the production, welcome new and old customers to order our products! Everbright valve manufacturers _ _ valve Valve Co., Ltd. Shandong by Shandong Everbright 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.