D21 PISTON TYPE MECHANICAL DIFFERENTIAL PRESSURE GAUGE
Reotemp’s Series D21 Piston Type Mechanical Differential Pressure Gauge is recommended when both the differential and the
static pressures are high and where a small amount of migration of process media is allowed. The mechanism utilizes a piston, magnet,
and calibrated rotary movement.
- Rugged, Compact, Cost Effective Design
- Weatherproof Rated to NEMA 4/IP65
- Working Pressure Up to 6,000 psi
- Over-range Protection to Max Working PressurePopular for Filters and Strainers
- ± 2% Full Scale Ascending Accuracy
- 5 Year Warranty
Accuracy: +/- 2% Full Scale Ascending
Range: 5-1050 PSID
Ambient Limits: 32°F – 175°F*
Process Limits: 32°F – 175°F*
Process Limits with Diaphragm Seal: Series D21 cannot be mounted to a diaphragm seal. See series D40/50 for gauges mountable to a diaphragm seal.
Wetted Materials:
Body: Aluminum, 316SS, Brass, or Monel
Internal Parts: SS 302 Spring and
Ceramic Magnet Gasket/Seals: Buna-N, Viton, or EPDM
Lens: Glass (Standard), Plastic, or Safety Glass
Case: 304SS, 316SS, or Engineered Plastic
Fillable: Yes
Maximum Working Pressure: 3,000 psi Aluminum Body, 6,000 psi 316SS Body or Monel
Environmental Protection: NEMA 4/IP65
*Gauge can withstand -40°F to 200°F, but accuracy will be affected.