Company Profile:
Zhongshn 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,VRLA Reliable Vent Plug , 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..
Introduction
The VRLA Reliable Vent Plug in Valve-Regulated Lead-Acid (VRLA) batteries is a precision-engineered safety component critical for industrial applications where reliability and maintenance-free operation are paramount. Unlike flooded batteries, VRLA (including AGM and Gel types) rely on recombinant technology and pressure-controlled venting to maintain electrolyte balance while preventing hazardous gas accumulation.
Key Functions:
1. Pressure Stabilization – Automatically vents excess gas when internal pressure exceeds
2. Oxygen Recombination Facilitation – Maintains optimal seal for efficient gas recombination
3. Acid Mist Containment – Advanced baffle systems capture electrolyte droplets while allowing gas escape
4. Explosion Prevention – Flame-arresting sintered metal filters in industrial-grade models
VRLA Reliable Vent Plug Basic Information:
Robust Pressure Control
Opening pressure:13±3 Kp
Closing pressure:≥8Kp
Automatic resealing prevents electrolyte loss and external contamination






Reliable Industrial Vent Plug Certification,Equipment and Detection

Common Failure Modes & Maintenance
Clogging – Dust or electrolyte crystallization can block the valve.
Wear & Fatigue – Repeated cycling may weaken the sealing mechanism.
Incorrect Calibration – Too high = explosion risk; too low = excessive venting and water loss.
Solution:
Periodic inspection (especially in high-temperature environments).
Replacement if the valve fails to reseal or shows signs of damage.
Innovations & Future Trends
Smart Valves – Integrated pressure sensors linked to BMS for predictive maintenance.
Multi-Stage Venting – Dual-pressure valves for optimized gas management.
Eco-Friendly Materials – Bio-based polymers for sustainable battery designs.
VRLA Reliable Vent Plug