Pressure Sustaining/Relief Valve

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Standard Specifications

Brand Name SINGER Mueller Brand
Country of Origin USA
Model Name Pressure Sustaining/Relief Valve
Body Material Ductile Iron
End Connections Flange
Disc and Diaphragm Buna N Rubber
Center Guide Stem, Stainless Steel
Production Lead Time 30 Days
Delivery Lead Time 60 Days



Product Details
A type of Automatic Control Valves that remains close until the inlet pressure exceeds the pilot setting. Under flowing conditions, the pilot reacts to a small changes in pressure to control the valve position by modulating the pressure above the diaphragm. Should the upstream pressure fall below the set-point, the valve close or modulate to ensure that the set-point is maintained. 

Company Profile

Singer designs and manufactures automatic control valves for the global water industry. Since 1957, our pilot operated diaphragm control valves have been installed on virtually every continent around the world. Whether it is water loss management in Southeast Asia, water conservation concerns in Saudi Arabia or urban distribution demands in the United States, we provide water management solutions to governments, cities, companies and contractors around the world. Learn more about SINGER.

The product images shown may represent the range of product, or be for illustration purposes only and may not be an exact representation of the product.

Additional information

Weight 77.11 kg
Body Type

Full Bore (106-RPS), Reduced Bore (206-RPS)


15mm, 19mm, 25mm, 32mm, 40mm, 50mm, 65mm, 80mm, 100mm, 150mm, 200mm, 250mm, 300mm, 350mm, 400mm, 450mm, 500mm, 600mm, 700mm, 750mm, 800mm, 900mm, 1000mm

Pressure Range

5 to 50 psi, 10 to 80 psi, 20 to 200 psi, 100 to 300 psi


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