D20
D20
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PISTON TYPE MECHANICAL DIFFERENTIAL PRESSURE GAUGE

REOTEMP’s Series D20 Piston Type Mechanical Differential Pressure Gauges are primarily designed for liquid applications. Differential pressure is sensed by the movement of a precisely ground floating piston/magnet in a precision bore against a calibrated spring. A rotary pointer magnet located close to the internal magnet follows the movement of the piston magnet and indicates differential pressure on the dial. Piston type differential pressure gauges exhibit a slight amount of bypass as the fluid crosses from the high to the low pressure port.

  • Rugged, Compact, Cost Effective Design
  • Weatherproof Rated to NEMA 4X/IP65
  • Working Pressure Up to 6,000 psi
  • Over-range Protection to Max Working Pressure
  • Popular for Filters and Strainers
  • +/- 2% Full Scale Accuracy
Construction Materials

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

Wetted
Body: Aluminum, 316SS
Internal Parts: 316SS
Gasket/Seals: Buna, Viton, Teflon, Ethylene Propylene, or Perfluoroelastomer

Temperature Limits

Ambient
-40°F to 130°F

Process
-40°F to 200°F

Process When Assembled with a Diaphragm Seal
Series D20 cannot be mounted to a diaphragm seal. See Series D40/42 for gauges mountable to a diaphragm seal.

Accuracy: +/- 2% Full Scale

Fillable: Yes, Except for 3.5” Dial

Max Working Pressure: 3,000 psi Aluminum Body, 6,000 psi 316SS Body

Download Data Sheet:

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