(Note minimum specific gravity of liquid must be. As liquid rises, the poppet becomes buoyant and eventually closes.
When pressure within the system exceeds atmospheric pressure, air is expelled. As pressure builds within the system, unwanted air is forced to the highest point in the system, i.e., the normally-open Air Release Valve. Until your system is pressurized, the valve is simply open, and air is present. Corrosion Resistant: Top quality thermoplastics and elastomers resist chemical attack and protect system purity.Superior Design: Poppet seals more reliably than ball designs does not deform under pressure like a hollow ball.
Cost Efficient: Designed to improve system performance and competitively priced. Seals bubble tight at system pressures as low as 10 psi (EPDM seals). Valve closes as liquid rises, after virtually all unwanted air is forced out. Minimal Closing Pressure: Closes at 0 PSI, as long as liquid is present. Optional dust cap available for appropriate installations. Convenience: True-union simplifies valve inspection/removal with minimum piping breakdown. Dependability: Unique self-guided poppet assures minimal emission of system liquid prior to sealing. Safety: Allows safe expulsion of unwanted air in piping systems. Self-Guided Poppet Assures Dependable, Repetitive Operation Series ARV Thermoplastic Air Release Valves.
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