PRD Rolling Diaphragm Gauge




  • Filtration systems
  • Low pressure gas systems
  • Leak detection
  • Suitable for use on dissimilar fluids, wet gas and process fluids with particulates present


  • Versatile high static low differential pressure gauge
  • Switches available for actuation
  • ASME B40.100 compliant
  • IP65 enclosure rating
  • 5 year warranty


Case Engineered plastic

Shatter resistant acrylic (standard), safety glass (optional)

Line Connection Locations In-line (only)
Connection 1/4″ NPTF (only)
Wetted Parts Materials SS parts with Buna N seals
Body Material SS, aluminum or acetal
Internals/Movement Magnetic coupling with rolling diaphragm sensor
Migration of Media Zero
Seal Buna N (standard), FKM
Standard Ranges 0-5 thru 50 psid (0.4 – 3 bar)
Maximum Pressure

Aluminum, SS: 1,000 psi (70 bar)

Acetal: 500 psi (35 bar)

Maximum Temperature -40°F to 200°F (-40°C to 93°C)
Accuracy ±5% of full scale

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