GA Figure 6700-DR, 6700-UR:

Backpressure Sustaining Valve Piston Operated

Size: 3" to 36"
Valve Type: Water Control Valve
Fluid: Water

VAG GA Industries Figures 6700-DR and 6700-UR self-contained, pilot-operated, differential piston actuated backpressure sustaining valves protect the integrity of the upstream system by throttling as needed to sustain a minimum inlet pressure.The valve will open fully when the inlet pressure is higher than the minimum set on the pilot and will close tight if the inlet pressure falls below the minimum.


The valve's unique V-port trim provides a semi-linear flow characteristic for excellent low flow control plus full port capacity to handle peak flow.

The main valve can be supplied with an OPTIONAL stop-check to prevent reverse flow should upstream pressure fall below downstream pressure.

  • Heavy duty, cast iron body with lead-free bronze internals for long term dependable service
  • V-port trim provides excellent low flow control plus full port capacity
  • Standard visual position indicator
  • Pilot system standard with closing speed needle valve, wye strainer and pilot isolating valves
  • Body: Cast Iron, ASTM A126 Class B
  • Cover: Steel, ASTM A36
  • Internal Trim: Lead-free Bronze
  • Renewable Seat: Buna-N
  • Internal Fasteners: Stainless Steel
  • External Fasteners: Steel, A307, Zinc Plated (Optional 316 Stainless Steel)
  • Pilot System: Lead Free Brass, Bronze or Copper
Corrosion Protection
  • Minimum 6 mil Internal and External 2-Part NSF-61 Carboline 891 Epoxy
Technical Datasheet
Figure 6700R Data Sheet 6700R-01B
Stop Check Data Sheet 1000SC-01B
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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.

GA Figure 6700-DR, 6700-UR:
Backpressure Sustaining Valve Piston Operated
GA Figure 6700-DR, 6700-UR Image
Size: 3" to 36"
Valve Type: Water Control Valve
Fluid: Water

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