The Flomatic Glen-Flo® GF8280 GF8200 3/4" dual check valve with intermediate atmospheric vent is a continuous-pressure backflow preventer designed to protect against both back-siphonage and backpressure in non-potable water applications. This model features an integral atmospheric vent, and double union ends for ease of installation and service.

Specifications:

Max Pressure: 175 psi

Max Temperature: 210°F (98°C)

Standard: ASSE 1012

Body: Forged brass

Elastomers: EPDM and Buna-N

Springs: Stainless steel (300 series)

Connection: 3/4" Female NPT threaded union (double union)

Weight: 1.3 lbs

Operation: The GF8200 incorporates two internal check assemblies with an intermediate atmospheric vent. Under backflow conditions, the checks close and the vent opens to discharge to atmosphere, providing protection against back-siphonage and backpressure.

Construction: Constructed with a forged brass body and corrosion-resistant internal components, including stainless-steel springs and FDA-approved elastomers, for reliable performance in boiler fill and similar systems.

Standards & Compliance: Complies with ASSE 1012 requirements for dual check assemblies with atmospheric vent.

Applications: Boiler fill water lines and mechanical system applications requiring continuous-pressure backflow protection where the water supply is not potable.