FPV/FP oxygen pipeline flame arrester

Overview of FPV/FP Oxygen Pipeline Flame Arrester Products

Oxygen pipeline flame arresters (FPV valve rear type, FP valve front type, oxygen flame arresters, pipeline flame arresters, valve front oxygen pipeline specific flame arresters, valve rear oxygen pipeline specific flame arresters, all copper flame arresters, stainless steel flame arresters, explosion-proof flame arresters, flange flame arresters, welding flame arresters, high-pressure flame arresters, gas flame arresters, all-weather flame arresters, fire dampers, flashers, flame arresters): This valve is also known as oxygen pipeline flame arresters, oxygen flame arresters. The function of oxygen flame arresters is to prevent external flames from entering equipment or pipelines containing flammable and explosive gases, or to prevent flames from spreading between equipment and pipelines. Fire extinguishers are designed and manufactured based on the principle of extinguishing flames through narrow pores of thermal conductors due to heat loss. The oxygen transport pipeline widely used in metallurgy, chemical and other industries can effectively cut off the fire source caused by the rapid friction between impurities in high-speed airflow and the pipe wall, and prevent pipeline explosion accidents from occurring.

Structural characteristics of FPV/FP oxygen pipeline flame arrester

The front and rear flame arresters of FP oxygen flame arrester and FPV oxygen flame arrester are made of special copper alloy and stainless steel welded together. The core is made of stainless steel material, which is corrosion-resistant and easy to clean. Users can directly weld and connect this product to the appropriate part of the oxygen pipeline for operation. This flame arrester is suitable for use as a flame arrester in oxygen pipelines with a diameter of DN15-500mm and a working pressure not exceeding 3MPa. It can effectively prevent the "adiabatic compression" that is easily formed when the oxygen pipeline valve suddenly opens, causing a sudden rise in local temperature and becoming a source of ignition energy; It can prevent high-speed moving particles (such as rust, dust, welding slag, etc.) from rubbing and colliding with the pipeline behind the valve under the pressure difference before and after the valve, generating sparks and becoming ignition energy. The use of flame arresters can quickly block the source of fire and prevent the occurrence of combustion accidents in pipelines.

Working principle of FPV/FP oxygen pipeline flame arrester

When flames enter these small channels, they form many small flame streams. As the size of the flame arrester channel decreases, the collision probability between free radicals and reaction molecules decreases, while the collision probability between free radicals and channel walls increases, which promotes a decrease in free radical reactions. Due to the large heat transfer area of the channel, the temperature of the flame decreases to a certain extent after heat exchange through the channel wall. When the channel size decreases to a certain value, this wall effect creates a condition where the flame cannot continue, and the flame is stopped.

FPV/FP oxygen pipeline flame arrester structure diagram

Performance and Material of FPV/FP Oxygen Pipeline Flame Arrester

FPV/FP oxygen pipeline flame arrester external structure connection size mm

Performance requirements for flame arresters in FPV/FP oxygen pipelines

Flange standards: GB, HG, SH, HGJ, JB, ANSL, JIS and other standards. (User specified, please indicate pressure rating) Manufacturing standard: Manufacturing and acceptance shall be carried out in accordance with standards such as (flame arrester for oil storage tanks) flame arrester performance and test methods for oil storage tanks, or user specified standards.

The flame retardant performance of the oxygen flame arrester at the end of the pipeline meets the requirements of the "Fire Arrest Performance and Test Methods for Fire Arresters in Petroleum Storage Tanks": ① The flame arrester shell should be able to withstand a water pressure of not less than 019M Pa, without leakage, cracks or deformation; ② The flame arrester should be able to withstand 13 consecutive explosion tests, with each test being able to extinguish the flame; ③ The flame arrester should be able to withstand a fire resistance test for 1 hour without tempering during this period. Fire resistance performance and test methods of flame arresters for petroleum gas pipelines.