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

Internal setpoint locking screw

SIL 3 Capable

FM, UL, CE, and CRN approved

Explosion-proof housing provides uncompromising protection

UL, CSA, ATEX and IECEx hazardous approvals

316L Stainless Steel housing available

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

Wide selection of switch elements

Markets & Applications

HVAC-R

Chemical and Petrochemical

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

  • Specifications
  • Downloads

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

Case or Body Material

Epoxy coated aluminium

Stainless steel 316L (1.4404)

Electrical Termination

Cable gland Ex d

3/4 NPT female

1/2 NPT female

M20x1.5 female

Setpoint

Deadband Fixed

Deadband limited adjustable

Single setpoint - Field adjustable

Process Connection Location

Bottom/side

Lower

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

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