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The Ashcroft® B7 National Electrical Manufacturers Association (NEMA) 7/9 pressure switch is designed for use in virtually all process, industrial and many OEM applications. This model provides accuracy, reliability and long-cycle life, while the rugged, explosion-proof housing provides superior protection. Ideal for satisfying requirements for pressure control, safety shutdown or alarm operations in hazardous applications.
Unit of Measure

Specifications

Brands

 N/A Ashcroft®

Accuracy

 N/A ± 1% of Full Span

Enclosure Ratings

 N/A National Electrical Manufacturers Association (NEMA) 7/9 Ingress Protection (IP66)

Diaphragm/Actuator Material

 N/A Buna-N® Polytetrafluoroethylene (PTFE) Fluorocarbon (FKM) 316L Stainless Steel Monel®

Setpoint

 N/A Single Setpoint - Factory Set or Field Adjustable

Enclosure Material

 N/A 316 Stainless Steel Epoxy Coated Aluminum

Electrical Termination

 N/A 1/2 in. National Pipe Thread (NPT) Female M20 x 1.5 (Optional)

Ambient Temperature Range

 N/A -20 to 150 ºF-28 to 65 ºC

Deadband

 N/A Fixed Limited Adjustable

Setpoint Repeatability (Accuracy)

 N/A ± 1% of Span Additional Setpoint Shift of ± 1% of Range per 50 ºF from Initial Setpoint set at 70 ºF Typical

Pressure Ranges

Pressure Ranges

 N/A Vacuum to 3,000 psi

Gauge Function

 N/A Vacuum Pressure

Pressure Connection

Pressure Connection (National Pipe Thread (NPT) Female (Standard))

 N/A 1/4 in

Pressure Connection (National Pipe Thread (NPT) Female)

 N/A 1/4 in1/2 in

Pressure Connection (National Pipe Thread (NPT) Male Combination (Optional))

 N/A 1/2 in

Process Temperature

Process Temperature (Buna-N® or Polytetrafluoroethylene (PTFE) Diaphragm)

 N/A 0 to 150 ºF

Process Temperature (Stainless Steel or Monel® Diaphragm)

 N/A 0 to 300 ºF

Process Temperature (Fluorocarbon (FKM) Diaphragm)

 N/A 20 to 300 ºF

Key Features

Key Features

 N/A
  • Explosion-proof enclosure provides uncompromising protection
  • Adjustable from 15% - 100% of range
  • Fixed or limited adjustable deadband
  • Wide selection of switch elements
  • Stainless Steel, Buna-N®, Fluorocarbon (FKM), Polytetrafluoroethylene (PTFE) and Monel® diaphragms available for compatibility
  • Ranges from vacuum to 3000 psi
  • 316L Stainless Steel housing available
  • External locking screw (ATEX/IECEx approval only)
  • UL, CSA, ATEX and IECEx hazardous approvals
  • CE, CRN and 3A approved
  • SIL 3 Capable
  • RoHS Compliant

Applications

Applications

 N/A Process Market:
Offshore Oil Rigs
Chemical and Petrochemical Plants
Pulp and Paper Mills
Power Plants
Steel Mills
Water and Sewage Treatment Facilities

Industrial Market:
Pumps, Compressors and Turbines
Boilers and Burners
Degreasers and Evaporators
Recovery Systems
Reverse Osmosis Systems and Filters
Food Processing
Ground Support Equipment
Hydraulic and Lubrication Systems
Heating and Air Conditioning
Marine Equipment
Specialized OEM Equipment