Breathing valve description

A breathing valve is a ventilation device installed on a petrochemical tank to prevent damage to the tank caused by overpressure or vacuum, and to prevent external flames from entering and reduce the loss of liquid evaporation inside the tank.

According to the national "Fire Prevention Code for Petrochemical Industry" GB50160 The regulation states that solid dome shaped tanks for Class A and Class B liquids should be equipped with flame arresters and breathing valves. In order to meet this requirement, our factory has been jointly developing a complete system of all-weather fireproof breathing valves with Sinopec Beijing Design since 1986. It has the characteristics of scientific and innovative design, complete specifications and models, compact structure, light weight, large ventilation capacity, and small leakage. The product structure includes breathing type, single breathing type, single suction type, reducing type, and jacket type. Various structural forms can be equipped with flame arresters and can also be equipped with the required breathing and suction end connecting pipes. At the same time, different materials are used to manufacture storage tanks for different media of oil, chemical and food, fully meeting the process requirements of various storage and transportation systems. The product has been approved by China for use in various storage and transportation systems. Petrochemical Corporation, Sinopec Beijing Design Institute, Scientific and Technological Achievement Appraisal (92) Sinopec Shijian No. 01, (95) BDI Jian No. 01, and won the third prize of Sinopec Progress Award.

Breathing valve is installed Petrochemical fixed ventilation device in a tank, in order to prevent the tank overpressure or vacuum in the tank is damaged, preventing the external flame into the tank, reduce liquid volatilization loss function.

According to the regulations of the state 'standard' fire petrochemical GB50160: 'solid vault tank a, B liquid, should set the flame arrestor and breather valve; in order to meet this requirement, I plant in 86 years before and Sinopec Beijing design developed all-weather fire breathing valve complete system. Has the characteristics of other scientific novelty, the specification model is complete, compact structure, light weight, ventilation volume, leakage etc.. Product structure is breathing type, single call type, single suction type, reducing type, with jacket. Various structural forms can be equipped with a flame arrester, may also be required with the call, suction end connecting pipe, oil, chemicals and tank on the food of different medium with different material, fully meet the various requirements of the storage and transportation system technology. The product has the Sinopec Beijing Design Institute of China Petroleum & Chemical Corporation,, identification of scientific and technological achievements (92) treated with Sinopec No. 01, (95) BDI in 01, and won the three prize: Sinopec progress'.