D40
D40
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DIAPHRAGM TYPE DIFFERENTIAL PRESSURE GAUGE

REOTEMP’s Series D40/42 differential pressure gauges are ideally suited for use on dissimilar fluids, wet gas or fluids with a high concentration of solids. Other applications include: use in Filter/Strainer Monitoring, Compressed Air, Hydraulic, Refrigerant, Pump Performance Testing, Heat Exchanger Pressure Drop Monitoring, Water Treatment Applications, Tank Level Monitoring Horizontal or Vertical, and Flow Monitoring & Balancing.

  • Total Separation of High and Low by a Convoluted Elastomer Diaphragm
  • For Use with Diaphragm Seals*
  • Weatherproof Rated to NEMA 4X/IP65
  • Working Pressure Up to 3,000 psi
Construction Materials

Non Wetted
Case: Aluminum or Engineered Plastic
Dial: White Aluminum, Black Letters
Lens: Plastic or Laminated Safety Glass

Wetted
Body: Aluminum, Brass, Monel, Aluminum-bronze, 316SS
Internal Parts: 316SS, Monel
Gaskets/Seals: Buna, Viton, Silicone, or Ethylene Propylene

Temperature Limits

Ambient
-40°F to 130°F

Process
-40°F to 200°F

Process When Assembled with a Diaphragm Seal
Direct Mount:-60°F to 350°F
Remote Mount:-100°F to 750°F

Accuracy: +/- 3-2-3%

Fillable: Yes, 4.5” Aluminum Case Only

Max Working Pressure: 3,000 psi (6,000 proof) Aluminum or SS Body, 1,500 psi (3,000 proof) Brass Body

*Diaphragm seals protect the gauge against corrosion, heat, and clogging from certain process fluids. Note: Diaphragm seals will reduce accuracy.

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