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The HUAXIAVENT ESS Pressure Relief Valve is an explosion-proof discharge gas device designed to mitigate fire and explosion risks in lithium-ion energy storage systems. It releases built-up pressure and flammable gases during thermal runaway, acting as a critical safety barrier for ESS, PCS, and battery enclosures

Those outdoors energy/power equipments are running normally every days

Regardless of the type of new energy equipment, various components are installed inside to operate, and each component requires safe conditions (appropriate temperature inside the cabinet) to function properly

If an accidental open flame occurs inside the BESS cabinet, it may leaks various possible flammable gases such as hydrogen or methane, the fire will intensify

As the combustible gas fire becomes increasingly uncontrollable, the internal temperature keeps rising, the pressure keeps pushing outwards, and finally becomes an uncontrollable explosion scene. The fire will affect dozens of battery cabinets around it, and the losses are incalculable

We can do Sound Transmission Loss (STL)!

ESS Pressure Relief Valve | Explosion-Proof Discharge Gas Device
Outlet vents Electric push explosion-proof pressure relief valve (with fan)
Model: HX-FBF-140C or HX-FBF-140D +
	Model: HX-FBF-140A No electrical connection, pressure sensing pressure relief
	Inlet vent Electric push open valve Linkable to sensors, eg. H2/CH4, smoke and other sensors

Constant pressure opening	Rapid pressure relief	Pressure relief & explosion-proof	Waterproof   dustproof

prevent thermal runaway explosions, fast pressure release

Keyword: pressure relief valve, explosion-proof valve, discharge gas device, ess pressure relief, energy storage safety valve, thermal runaway vent, push open valve, pressure release valve, battery enclosure vent, thermal runaway vent, discharge gas valve

         Product operation principle   

Suitable to ESS container, PCS cabinet, EV charging station, CHP unit application

Situation 1

Electric open pressure valve by sensor

HX-FBF-140B is a sensor operative valve, it can be associated with combustible gas monitoring. When the battery in the cabinet leaks combustion supporting gas, the explosion-proof valve will automatically open, attracting external air to dilute and flame retardant other components

Then

Electric pressure relief valve with fan

The HX-FBF-140C or D types will automatically turn on, the fan will start, and the peripheral air will be drawn in through the inlet of the B model, quickly exhausting the combustible gas and high temperature inside the cabinet, achieving the effect of rapid pressure relief, cooling, ventilation, and preventing explosions caused by excessive pressure

Situation 2- A model special treatment

Accidents cannot be predicted. If an accident inside the cabinet has caused sensor failure, short circuit, and the BCD types pressure relief valve to fail to open as expected, the open flame inside the cabinet will continue, and the temperature will continue to rise. The internal pressure will continue to expand outward, and the cabinet will face the result of explosion

Mechanical pressure relief valve

There is the ultimate guarantee of the A-type pressure relief valve. As the pressure inside the cabinet continues to rise and reaches the critical point where the A-type pressure pushes open, the A-type valve will mechanically open the valve through pressure, and the internal heat and thick smoke will be instantly discharged from the equipment, preventing a dangerous explosion.

       Video reference explation   

       Accessory upgrade option   

Electric + spring push rod ( original is electric push rod) When the electric promotion fails and the valve cannot be opened, the spring push rod can push the valve open due when the pressure enough inside the cabinet	+ Sealing close sensor option Bind the sensor to detect if there is any foreign object pressing against the valve and it cannot be tightly closed	+ Insect barrier mesh option
Original fan blower	Upgrade option: Explosion-proof fan blower （No static electricity）

Product parameter

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We can customize explosion-proof product solutions for you

There are more other protection level louvers for differenct application

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↑ For all type energy ESS/ PCS/UPS/CHP/ hydrogen container/cabinet ↑	↑ For all electric vehicle charging pile/cabinet ↑
↑ For fabricated substation/ power distribution/switch gear ↑	↑ For architecture structure ↑
↑ For diesel generator/ genset/ combine heat & power ↑	↑ For mobile energy  ↑

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