The petrochemical industry has a complicated production process and most of the raw materials, semi-finished products, finished products and various auxiliary materials used in the production process are flammable and explosive substances, which can easily lead to fire and explosion accidents. However, the valves used in some easy-to-fire conditions often have special design due to the potential danger of fire, so that the valve still has certain sealing performance and operation performance after being subjected to fire for a certain period of time. In the measure of the valve fire resistance, fire test is an important means to verify the valve. At home and abroad has been on the petrochemical industry with the valve fire test attaches great importance to and develop the relevant standards.
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