国产精品片一区二区三区_99麻豆久久久国产免费福利精品_久久露脸国产精品_国产成人精品a_久久久久国产精品熟女影院_成人黄色国产

JAV Jacket Insulation Breathing Valve Overview
JAV Jacket Insulation Breathing Valve produced and sold by Baigang valve group for the installation of crude oil, gasoline, kerosene, light diesel oil, aromatics and other fixed top-type storage tank on the main safety equipment, jacket insulation breathing valve is up Evaporation loss and protection of tank against overpressure or vacuum from damage (jacket insulated breathing valve). Jacket insulation breathing valve is usually used with the flame arrester. Jacket insulation breathing valve, jacket insulation breathing valve.

JAV Jacket Insulation Breathing Valve features
 1, jacket breathing valve material made of cast steel, stainless steel, good corrosion resistance. 
 2, the valve plate, valve ring stainless steel, PTFE material. Low temperature, antifreeze performance is good. 
 3, the valve is installed on the fixed roof tank ventilation device to reduce evaporation loss of oil, control the pressure of the tank. 
 4, the valve has a large amount of ventilation, leakage, corrosion resistance, antifreeze good. 
 5, It can automatically adjust the internal and external pressure on the oil tank and other characteristics. 
 6, simple structure, light weight, easy maintenance, easy installation. 
 
JAV Jacket Insulation Breathing Valve main dimensions and flange connection size