A reliable stainless steel small rapid air valve that absorbs the expansion of water during freezing with a disc spring to prevent damage to the air valve.
The JWWA B 137 rapid air valve for water supply has equivalent performance, and its lightweight and compact design make installation and maintenance easy. Features: - The built-in disc spring in the lid absorbs the expansion of water during freezing, preventing damage to the valve. - Major components are made of stainless steel, providing excellent aesthetics and long-term reliability. - Performance is equivalent to the JWWA B 137 rapid air valve for water supply with a diameter of 25 mm. - The flange type has a height of 242 mm and weighs 9 kg, making it lightweight and compact, ideal for shallow burial. - Installation in narrow spaces and disassembly and assembly during maintenance can be easily performed. - The floating valve body and the movable valve body are connected using a unique method that applies the principle of leverage, ensuring smooth and reliable operation. - The ball cock is made of stainless steel (SCS13) and has a freeze damage prevention feature, ensuring long-term use is safe. - It is a lead-free product that does not use any copper alloy containing lead. - By attaching an emergency town nozzle for air valves, pressure measurement and the installation of emergency water supply taps are possible. For more details, please contact us or download the catalog.
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basic information
Nominal diameter: 25mm Specifications: JWWA 137 compliant product Maximum operating pressure: Type 2: 0.75MPa, Type 3: 1.0MPa
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Applications/Examples of results
It is used for water supply piping, agricultural water, and general piping throughout the country.
catalog（1）
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CAD data（2）
| Model number | overview | File |
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| RS-3 Type Rapid Air Valve (Stainless Steel) for Freeze Damage Prevention |
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| RS-3 Type Rapid Air Valve (Stainless Steel) for Freeze Damage Prevention |
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Company information
A valve manufacturer headquartered 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.