Product Catalog
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Breathing Valve
Breather Valve is a safety and energy-saving accessory installed on the top of atmospheric / low-pressure storage tanks. It consists of a pressure relief valve (outbreathing) and a vacuum relief valve (inbreathing). It maintains balanced air pressure inside and outside the tank to avoid tank bulging caused by overpressure and tank collapse caused by negative pressure, while lowering volatile loss of stored medium.
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Single Exhaust Breather Valve
Single Exhale Valve is a type of tank accessory with only gas exhaust function. When the internal tank pressure exceeds the set value, the valve disc opens to discharge gas inside the tank (process gas / nitrogen), and it will automatically close once the pressure drops back to normal.
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Single Inlet Breather Valve
Single Inhale Valve solely serves air intake and pressure replenishment. Suitable for atmospheric/low-pressure tanks and nitrogen-blanketed tanks, it avoids tank collapse from negative pressure formed by feeding, cooling and falling liquid levels.
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Emergency Relief Valve
Emergency Pressure Relief Valve is a safety pressure relief device mounted on the top of atmospheric and low-pressure storage tanks (for petroleum, chemical, LNG and other media). Under emergency conditions such as fire, nitrogen blanketing system failure and misoperation, it rapidly releases overpressure inside the tank at high flow rate to prevent tank bulging and deformation.
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Breathing Manhole
Breather Manhole is a large-diameter safety venting device installed on the top of atmospheric and low-pressure storage tanks. It can be used in conjunction with breather valves or independently, providing routine breathing as well as emergency overpressure and vacuum protection. It enables ultra-high-flow pressure relief during fire accidents, integrating flame arrest, sealing and environmental protection functions.
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