SST-Porous®HighFlow pressure relief valve is composed of SST-Porous® vent membrane, stainless steel, aluminum alloy and other materials, and is designed with a special structure. When the lithium battery cells are thermally out of control, the pressure relief valve will automatically open to release a large amount of gas and heat to prevent the PACK from exploding; under normal working conditions, it can also be waterproof, breathable and dustproof, and its protection level can reach IP68.
As a big economy and energy consumption country, China is bound to participate in this round of competition in the new energy industry. Among them, wind energy storage and new energy vehicles are two important development directions of our country. It is of great significance for the realization of China’s 3060 carbon peak carbon neutral vision. Significance.
Photovoltaic power generation and wind power generation energy storage batteries and new energy vehicle power storage batteries occupy an important position in the new energy industry chain. In order to protect the service life and safety of the battery, SST has developed the SST-Porous® HighFlow pressure relief valve, which is an ideal pressure management solution designed for battery system ventilation. The high-performance SST-Porous® vent membrane can be sensitive and reliable. Handle two-way pressure equalization, significantly reducing system pressure fluctuations.
Even under harsh working conditions, the special end cover and sealing design of the SST-Porous® HighFlow pressure relief valve can ensure the reliability of the venting function.
The vent membrane is applied in the dry cavity environment of the three-electric system to ensure two-way pressure balance; it can meet protection standards such as IP67, IP68, IP6KX, IPX9K; press-in quick installation, suitable for various wall thicknesses and installation directions
In an emergency state, the SST-Porous®HighFlow pressure relief valve is quickly opened when the internal pressure of the battery pack is 3~15kPA with the help of a fully reversible spring structure, which can quickly release the internal pressure of the battery pack; The high-performance waterproof and breathable membrane can achieve stable internal and external pressure balance, greatly reducing the safety risk of battery thermal runaway.
Situation 1: When the internal pressure of the Pack battery pack is lower than the opening pressure of the SST-Porous®HighFlow pressure relief valve
The SST-Porous high-performance vent membrane in the SST-Porous®HighFlow pressure relief valve structure mainly realizes the pressure difference balance between the inside and outside of the Pack battery pack, waterproof, breathable, and dust-proof, and effectively protects the safety and reliability of the battery pack.
Situation 2: When the internal pressure of the Pack battery pack is significantly greater than the opening pressure of the SST-Porous®HighFlow pressure relief valve
The spring in the SST-Porous®HighFlow pressure relief valve structure is compressed at 6~8kPA, so as to realize the rapid discharge of gas and heat, so as to confirm that the battery pack will not cause greater damage caused by pressure accumulation in a short period of time.
|product number||Minimum ventilation||opening pressure||IP Grade||vent membrane||The main material||Flammability rating||Thread specification|
|FB-AL-12150-5-W00200100||70ml/min@25mbar||13-18 kPa||IP 67, IP 68, IP 69K*||e-PTFE||AL||V0||M12*1.5|
|FB-AL-20150-5-W00200100||400ml/min@25mbar||8-13 kPa||IP 67, IP 68, IP 69K*||e-PTFE||AL||V0||M20*1.5|
|FB-AL-32150-5-W00200100||1100ml/min@25mbar||3-8 kPa||IP 67, IP 68, IP 69K*||e-PTFE||AL||V0||M32*1.5|
|FB-AL-40150-5-W00200100||1900ml/min@25mbar||5~15 kPa||IP 67, IP 68, IP 69K*||e-PTFE||AL||V0||M40*1.5|
[Noted] If you have any questions about the size, please contact SST sales engineer – email@example.com. The above data are sample measurement values, for reference only.
1）Power batteries for hybrid and electric vehicles
2）Car starter battery
3）Photovoltaic and wind power generation energy storage batteries
Assembly fastening torque
|0.4N.m~0.8N.m and no concerns for metal venting|
Breaking fastening torque
≥2.0N.m for Plastic and no concerns for metal venting
Repetitively assemble 10 times under torque 0.7N.m， top cover of the valve does not fall off for Plastic