Combination Air Valves (Minitype)

Description
The combination air valve has the features of both an air release valve and an air & vacuum valve.
The air release component of the combination air valve was designed to automatically release small pockets of air to the atmosphere as they
accumulate along a pipeline or piping system when it is full and operating under pressure.
The air & vacuum component was designed to automatically discharge or intake large volumes of air during the filling or draining of a pipeline
or piping system. This valve will open to relieve negative pressures whenever water column separation occurs.

Applications

• Pump stations: after the pump and after the check valve.
• Head system.
• At the end of lines and at the end of a sub main.
• On strainers and filters.

Main Features

• Working pressure range: DG-10 0.1-10 bar. D-040 0.2-16 bar
• Testing pressure: DG-10 16 bar. D-040 25 bar.
• Working Temperature: 60° C.
• Maximum short-term temperature: 90° C.
• The body is made of high strength composite materials and all operating parts are made of specially selected corrosion-resistant materials.
• The larger than usual orifice enables it to release air at higher flow rates than other automatic air release valves of its kind.
• The enlarged orifice with its self-cleaning mechanism dramatically reduces obstruction due to debris.
• The valve's rolling seal mechanism design is less sensitive to different pressures than a direct float seal, thus enabling a one-size orifice for a wide pressure range (from 0.2 up to 10 bar).
• Light, simple and reliable structure.
• Due to its light weight, the valve may be installed on plastic piping systems, as well as other light weight piping.