GA Figure 525-RD:

Weight Loaded Relief Valve for Water, Sewage and Sludge

Size: 2" to 12"
Valve Type: Surge Relief Valve
Fluid: Wastewater, Water

Protects systems from excessively high pressure caused by pump stoppage or valve closure.Straight through design offers no restrictions to flow and is ideal for use with sewage or sludge.Especially well suited to protect progressive cavity pumps should its discharge become blocked.

  • Heavy duty, flow efficient globe body
  • Tough and corrosion resistant 316SS body seat
  • Durable but replaceable resilient disc seat for tight shutoff
  • Adjustable dual counterweights control opening pressure
  • Self-contained hydraulic closing speed control
  • Body - Cast iron, ASTM A126 Class B
  • Cover - Steel, ASTM A36
  • Body Seat - Type 316 Stainless Steel
  • Disc, Disc Arm - Ductile Iron
  • Disc Seat - Buna-N Rubber
  • Shaft - Stainless Steel
  • External Fasteners - Zinc Plated Steel
Corrosion Protection
  • Standard - Internal and external 2-part epoxy, NSF-61 certified, minimum 6 mil DFT.
  • Optional - Type 316 Stainless Steel external fasteners
Installation, Maintenance and Operating Instructions
Figure 525RD 2 to 12in 101723
Sample Specification
GA-525-SPEC Rev A
Technical Datasheet
Fig 525RD Data Sheet 525-01C
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Clean Water

Dependable valves that meet your clean water needs

From the raw water intake to the filtration plant to the finished waster distribution and storage system, GA Industries valves have been providing dependable service in large and small water systems. GA Industries pump control, check and relief valves mitigate damaging pressure surges and eliminate slam and bang that can result from the operation of water pumps.

Our full range of pilot operated control valves regulate distribution system pressure and prevent overflow of storage tanks and reservoirs. Air trapped in water pipelines can reduce system efficiency and exacerbate pressure surges. Our wide range of automatic air valves ensures we have the right valve to maintain an air free system.

And when it’s necessary to isolate a pump, process or section of pipeline, you can depend on GA Industries butterfly valves for reliable flow shutoff.


Reliable wastewater valves designed for rigorous service

GA Industries sewage and wastewater valves are specially designed to accommodate the rigorous demands of the sewage collection, pumping and treatment process.

Whether a large regional sewage pump station, a small lift station or in-plant process pumping, GA Industries line of wastewater check, pump control and surge relief valves provide reliable service under difficult operating conditions. GA Industries ECO-Centric® plug valves handle solids and stringy material and are used in sewage and wastewater systems for pump, pipeline or process isolation.

Our full range of sewage and wastewater air valves automatically release air and sewage gas from forcemains to maintain pumping efficiency and minimize pipeline corrosion.

GA Figure 525-RD:
Weight Loaded Relief Valve for Water, Sewage and Sludge
GA Figure 525-RD Image
Size: 2" to 12"
Valve Type: Surge Relief Valve
Fluid: Wastewater, Water

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