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1131 Differential Pressure Gauge

Brand: Ashcroft Inc

The Type 1131 is utilized for applications where migration of the process media is not permissible.

The Type 1131 uses a rolling diaphragm design to separate the high and low-pressure ports to isolate the media and can see up to 3000 psi static pressures. 

Body materials are available in Aluminum, Brass and Stainless Steel, with Buna, Viton or EPDM seals.
Features
  • Rolling diaphragm actuator 
  • Stainless steel case 
  • Ranges from 5 to 100 psid 
  • Static pressures up to psi: 3,000 (kPa: 20,680, bar: 206.8) 
  • Aluminum, brass or stainless steel bodies 
  • Buna-N diaphragm & O-rings (others available) 
  • Superior magnets for smoother power motion 
  • Switch outputs available 

Specifications

Brand

Accuracy

  • ± 2 % - Ascending

Actuator Type

  • Rolling Diaphragm

Diaphragm Material

  • Buna-N
  • EPDM
  • Viton

Electrical Connectors

  • Adapter: 1/8” NPT Female

Electrical Rating

  • SPDT: 0.3 A at 30 Vac/dc, 3 VA
  • SPST: 0.5 A at 100 Vac/dc, 10 VA

Enclosure, Body Material

  • Aluminum
  • Brass
  • Stainless Steel

Fill Material

  • Glycerin
  • Silicone

Lens

  • Window: Glass Lens
  • Window: Plastic Lens

Mounting

  • Pipe Mounting Bracket

NPT Connection

  • 1/4” NPT Female

O-Ring Material

  • Buna-N
  • EPDM
  • Viton

Pressure Range

  • bar: 0 to 6.998
  • kPa: 0 to 689.5
  • psid: .0 to 100

Pressure Type

  • Differential

Process Temperature

  • Maximum

Size

  • Dial: 2.5” (63 mm)
  • Dial: 3.5” (89 mm)
  • Dial: 4” (100 mm)
  • Dial: 4.5”
  • Dial: 6” (152.4 mm)

Static Pressure

  • Maximum

Switch Type

  • SPDT
  • SPST

  • Cleanrooms Positive Pressure (Low Differential Pressure)
  • Filtration Condition Monitoring
  • Flow Measurement
  • Leak Detection
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