World Class Filtration Solutions

Filtration leader's battery vent range represents step forward for industry safety

11 Nov 2016

One of the world's leading producers of high performance filtration and separation technology is driving fresh innovation across its wide range of battery vents.

Porvair Filtration Group supplies high strength Vyon® materials – available in Polyethylene and Polypropylene – to lead acid battery manufacturers, preventing the build-up of explosive gases and stopping dangerous sparks propagating back inside the battery.

The potential for explosion within a lead-acid battery occurs when hydrogen gas created during normal operation reaches a specific Hydrogen/ Oxygen concentration.

While ceramic vents have historically been used to release excess gas from lead-acid batteries during operating cycles and prevent flame ingress into the battery, these have several disadvantages including poor handling during automated assembly and a relatively high manufacturing cost.

 Porvair's porous Vyon® materials, instead, offer greater cost-effectiveness and flexibility in the ever more demanding environment of automated battery assembly.

 The Vyon® vent benefits from simplicity of assembly, making it an ideal choice for all lead-acid battery vent applications.

Manufactured from both sintered polyethylene and polypropylene materials, the vent can be easily secured into the battery by a wide range of industry standard ultrasonic and heat welding techniques.

Porvair's battery vents and flame arrestors can be manufactured in a variety of formats, shapes and sizes, including complex 3D shapes, moulded or rotary-cut discs or plugs, moulded or seam-welded cylinders.

The company's wide range of material options – which can be manufactured in various material formats and shapes – means that it can define the optimum solution for each problem.

Porvair's General Manager Roy Rigby said:

 "We believe that our innovative battery vents represent a significant step forward for industrial safety.

 “The potential for battery fires or explosions remains ever-present, but the deployment of highly effective, naturally hydrophobic solutions, means that the risk is significantly reduced.

“The ability of our materials to separate airborne acid droplets, preventing both corrosion and depletion of the battery's electrolyte, meanwhile provides further assurance.

“Matching those features and benefits is a deep understanding of the applications and a fundamental belief that bespoke solutions are best, helping to prevent dangerous circumstances before they are allowed to arise.”

Vyon® sintered porous plastic materials offer excellent chemical compatibility, exceptional strength and are resistant to most acids. Versatile, strong, and efficient, they also reduce the likelihood of acid spillage.

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