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Reotemp Series D50 differential pressure gauges are widely used in the process industry on dissimilar liquids and gasses that require a rugged all stainless steel construction. With a large dial face, full 270° arc, and optional Hi-Vis™ dial, this highly accurate gauge is easy to read in many different lighting conditions. The high and low housings are equipped with the ability to flush out solid particles that build-up within the pressure chamber. Inside the pressure chambers are corrosion resistant diaphragms that are liquid-filled to compensate static pressure. The outer body and process ports mimic the dimensions of most field-mount differential pressure transmitters and allow for easy mounting to a manifold.

  • Rugged All Stainless Steel Construction
  • High Accuracy: +/-1.6% FS or upgrade to +/-1% FS
  • Easy-to-Read 270° Dial Arc
  • External Zero Adjustment
  • High/Low Chamber Flushing Ports
  • Up to 750°F Max Working Temperature with Diaphragm
Accuracy +/- 1.6% Full Scale
+/-1% Full Scale (Optional)
Temperature Limits Ambient: 0/175° F
Process: 0/212° F
Process with Diaphragm Seals:
-110° F / 750° F*
*Exact limits depend on diaphragm seal model, fill fluid, and
Wetted Materials Body: 316SSL Housing
Diaphragms: 16 to 160”WC – 316SS Ti
Diaphragms: 10 to 400 psid – NiCrCo-
Alloy (Duratherm)
Optional Diaphragm: Hastelloy C-276
Gaskets/Seals: Viton
Non-Wetted Materials 304SS Case and Bezel
Alumium Dial and Pointer
Laminated Safety Glass Lens
(Acrylic Optional)
Silicone Filled System
Fillable Case Yes
Maximum Working Pressure 600psi (1,500psi optional)
Environmental Protection Dry: Nema 3S (IP54)
Filled: Nema 4 (IP65)