A quick air valve with water hammer prevention function compliant with JWWA B 137 standards.
This is a rapid air valve equipped with a water hammer prevention function (compatible with ball pushers). The "water hammer prevention function" suppresses sudden exhaust and prevents water hammer, thereby protecting the piping and air valve. Features: - Protects the piping and air valve by preventing water hammer (water hammer) caused by the behavior of water in the pipe during pump startup and shutdown or during an earthquake. - The water hammer prevention valve body, pushed up by the wind pressure from the rapid discharge of air in the pipe, blocks the upper exhaust port, reducing the exhaust area and suppressing the rapid flow of air and water. - By replacing it with the ball pusher body, the air valve can be used for various applications such as forced exhaust from the air valve, pipe cleaning, and water supply work. - Both the inner and outer surfaces are coated with epoxy resin powder to suppress rust formation. - The bolts are made of stainless steel, ensuring reliability for long-term use. For more details, please contact us or download the catalog.
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basic information
Nominal diameter: 75-100mm Type: Rapid Specifications: JWWA 137 compliant product Maximum operating pressure: Type 2: 0.75MPa, Type 3: 1.0MPa
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This is a new product for the year 2027.
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Company information
A valve manufacturer based in Hikone City, Shiga Prefecture. As a member of the AVK Group (Denmark), it manufactures and sells valves and fire hydrants for domestic water supply and sewage systems. Additionally, it imports and sells various valves and fire hydrants that meet international standards for water supply, gas, fire protection piping, and industrial plants.
