The Ashcroft® B7 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.
B-Series NEMA 7/9 Explosion Proof Pressure Switch Features:
- 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, Viton, Teflon 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
B-Series NEMA 7/9 Explosion Proof Pressure Switch Applications:
- 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
B-Series NEMA 7/9 Explosion Proof Pressure Switch Specifications:
| Setpoint | Single setpoint - Factory set or field adjustable |
| Accuracy | ±1% of full span |
| Diaphragm/Actuator Material | Buna-N®, Teflon®, Viton®, 316L stainless steel, or Monel® |
| Enclosure Material | Epoxy coated aluminum or 316 stainless steel |
| Enclosure Ratings | NEMA 7/9, IP66 |
| Pressure Connection | - ¼ NPT Female (STD.)
- ½ NPT Female, ¼ NPT Female & ½ NPT Male combo (OPT.)
|
| Electrical Termination | ½ NPT Female, M20 X 1.5 (OPT.) |
| Deadband | Fixed or limited adjustable |
| Pressure Ranges | Vacuum to 3,000 psi |
| Ambient Temperature Range | –20°F to 150°F (–28°C to 65°C) |
| Process Temperature | - 0°F to 150°F (Buna N or Teflon diaphragm)
- 0°F to 300°F (Stainless steel or Monel diaphragm)
- 20°F to 300°F (Viton diaphragm)
|
| Setpoint Repeatability (Accuracy) | ±1% of span (Additional setpoint shift of ±1% of range per 50°F from initial setpoint set at 70°F typical) |
Download Ashcroft B-Series NEMA 7/9 Explosion Proof Pressure Switch Datasheet Contact us at
(855) 737-4714 to learn more, or fill out our
online form.
Download Ashcroft B-Series NEMA 7/9 Explosion Proof Pressure Switch Datasheet
