AGM battery exhaust safety valve
Company Profile:
Zhongshan Kenpo Plastic Technology Co., Ltd. is an esteemed ISO-certified manufacturer, renowned for our specialization in crafting state-of-the-art battery components. Nestled in the heart of China, we are experts in manufacturing indispensable battery status indicators, robust safety valves（AGM battery exhaust safety valve）, sophisticated bushings, and resilient battery boxes.Each product is a testament to our commitment to innovation, being independently researched, meticulously designed, and expertly produced, with several holding prestigious technical patents. Our diverse product models and specifications cater comprehensively to both domestic and international battery installation standards; their quality is aligned with stringent industry standards for battery plastic shells and national standards.
1. AGM battery exhaust safety valve provides:
Pressure Regulation – Prevents excessive internal pressure that could cause swelling or rupture.
Recombinant Gas Management – Allows controlled venting while minimizing water loss.
One-Way Venting – Releases gas but prevents air ingress, maintaining battery integrity.
Flame Arresting – Some designs include flame-resistant materials to prevent external ignition.
2. Working Principle
AGM batteries operate on a recombinant principle, where oxygen and hydrogen recombine internally to form water. However, under extreme conditions (e.g., overcharging), excess gas must be vented:
Normal Operation – Valve remains closed, maintaining a sealed environment.
Overpressure Condition – When pressure exceeds, the valve opens briefly to release gas.
Resealing – Once pressure normalizes, the valve closes automatically.
Safety Shutoff – Some advanced valves include a fail-safe mechanism to permanently seal if excessive venting occurs.
3. Key Design Features
FeatureDescription
MaterialHigh-durability polymers ( PP) resistant to sulfuric acid and high temps
Opening Pressure:Optimized for AGM recombination efficiency
Valve TypeSpring-loaded, silicone diaphragm, or burst-disc mechanisms
Vent Path DesignLabyrinth or hydrophobic filter to prevent electrolyte leakage
ReusabilityMost valves reset automatically; some require replacement after extreme events
4. Importance in AGM Battery Safety
Prevents Swelling & Case Rupture – Excessive pressure can deform the battery casing.
Reduces Water Loss – Critical for maintenance-free operation.
Enhances Cycle Life – Proper venting prevents dry-out and stratification.
Compliance with Safety Standards – Meets regulations for safe transport and operation.
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Reliable Industrial Vent Plug Certification，Equipment and Detection
AGM battery exhaust safety valve
