Aquamatic – VAVC-0000-90000 – 421 – 1″ – Female NPT – Normally Open

AquaMatic Series VAV Air Valves – Standard valves are normally open. Body and cap are of cast iron. Preformed stress-relieved diaphragm of nitrile (Buna N) on nylon, and static seals are FKM and Hycar, stainless steel and brass internal parts. Pipe sizes are 3/4- to 3-inch threaded (NPT or BSP) ; 3- to 4-inch flanged drilled in accordance with ASA16.1 class 125, or BSP4504.

Features and Benefits
Low Pressure Loss –Y-pattern diaphragm valve features a large seat opening and high lift-disc for higher flow rates at a lower pressure loss than other comparable valves.
Cost-Effective Design –In initial cost as well as lifetime maintenance expenses.
Durable – Cast iron, brass, stainless steel and nitrile elastomer components, giving an unparalleled service life of 3 years or longer depending on the application’s environment.
Positive Control – Separate valve flow and control chambers permits positive sealing without springs. The optional spring-assist open feature is available for low pressure and selfdraining applications.
Long Diaphragm Life – Separate diaphragm chambers protects the diaphragm from the flow stream, while allowing the valve to be serviced in-line.