Venting Valves and Vacuum Breakers

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    Plast-O-Matic ARV Air Release Valve

    Plast-o-matic® type AVR is a thermoplastic air release valve designed for safe expulsion of unwanted air in piping systems. Its unique self-guided poppet assures minimal emission of system liquid prior to sealing and does not deform under pressure. It features minimum closing pressure and is corrosion resistant.

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    Plast-O-Matic CARD Combination Air Release & Degassing Valve

    Plast-o-matic® type CARD Combination Air Release and Degassing Valve is a combination of the following features in one enclosure: air release valve, degassing valve, and vacuum relief valve. The self-guided, high buoyancy float, in combination with the elastomeric sealed poppet assures leak tight sealing with minimal emission of process fluid.

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    Plast-O-Matic DGV Degassing Valve

    Plast-o-matic® type DGV Degassing Valve is designed for continuous automatic venting.  It is designed for systems that continuously generate trace amounts of gasses. Its all-plastic construction is designed for sodium hypochlorite, ozone systems, or any liquids prone to outgassing.

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    Plast-O-Matic VB, VBM, VBS Vaccum Breakers

    Plast-o-matic® type VB, VBM and VBS Self-Closing Vacuum Breakers protect against hazards, damage and financial losses caused by vacuum. They are designed to protect enclosed tanks from collapse or structural damage during draining. Their patented diaphragm design assures dependable, repetitive, bubble-tight sealing in VBM and VB, and the PFA encapsulated spring and special poppet provides identical performance in the VBS design.

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