D-Series NEMA 7/9 Differential Pressure Switch

D-Series NEMA 7/9 Differential Pressure Switch

The Ashcroft® D7 NEMA 7/9 differential pressure switch is designed for applications requiring safety, reliability and long-cycle life.
The Ashcroft® D7 explosion proof differential pressure switch is designed for applications requiring safety, reliability and long-cycle life. It is ideal for satisfying requirements for differential pressure control, shutdown or alarm operations in hazardous locations.

Key Features

UL, CSA, ATEX and IECEx hazardous approvals

316L Stainless Steel housing available

Adjustable setpoints from 15% ... 100% of range

Wide selection of switch elements

Internal setpoint locking screw

SIL 3 Capable

FM, UL, CE, and CRN approved

Explosion-proof housing provides uncompromising protection

Markets & Applications

Energy

Boilers

Gas Measurement; Burners

Food and Beverage

Filtration Monitoring

Oil and Gas

Machine Automation

Pulp and Paper

Hydrogen and Technical Gases

Water and Wastewater

Pharmaceuticals

Pumps and Compressors

HVAC-R

Chemical and Petrochemical

  • Specifications
  • Downloads

Case or Body Material

Stainless steel 316L (1.4404)

Epoxy coated aluminium

Electrical Termination

3/4 NPT female

1/2 NPT female

M20x1.5 female

Cable gland Ex d

Setpoint

Single setpoint - Field adjustable

Deadband Fixed

Deadband limited adjustable

Process Connection Location

Lower

Bottom/side

Mounting

Stem

Surface

2" pipe mounting

Process Connection Style

Threaded

Accuracy

1% of span

Switch Style

Microswitch SPDT

Microswitch DPDT

Ranges

75 ... 375 mbar / 30 ... 150 in. H2O

1 ... 42 bar / 15 ... 600 psi

Pressure Type

Differential pressure

Wetted Parts Material

Buna-N®

Teflon®

Viton®

Stainless steel 316L (1.4404)

Static Pressure

0.375 ... 70 bar / 5.4 ... 1000 psi

PN100

Ingress Protection

IP66 / NEMA 7/9

Data Sheets
Installation + Maintenance
Declaration of Conformity
Industry Brochures
Product + Technical Information
Drawings + Models

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