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1133 Differential Pressure Gauge

Brand: Ashcroft Inc
The Type 1133 differential pressure gauge is an economical means for measuring very low pressure with high static between two independent pressure sources.

It uses a convoluted diaphragm to sense low inches of water differentials while ensuring no migration of the process media.
Features
  • Large convoluted diaphragm actuator 
  • Stainless steel case 
  • Static pressures up to psi 500 (kPa: 3,447, bar: 34.47) 
  • Aluminum (2) and stainless steel bodies (3) 
  • Buna-N diaphragm & O-rings (others available) 
  • Superior magnets for smoother power motion 
  • Standard switches available 
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The Type 1133 differential pressure gauge is an economical means for measuring very low pressure with high static between two independent pressure sources.

It uses a convoluted diaphragm to sense low inches of water differentials while ensuring no migration of the process media.
Features
  • Large convoluted diaphragm actuator 
  • Stainless steel case 
  • Static pressures up to psi 500 (kPa: 3,447, bar: 34.47) 
  • Aluminum (2) and stainless steel bodies (3) 
  • Buna-N diaphragm & O-rings (others available) 
  • Superior magnets for smoother power motion 
  • Standard switches available 

Specifications

NPT Connection

  • 1/4” NPT Female

Environmental Protection

  • Explosion-proof

O-Ring Material

  • Buna-N
  • EPDM
  • Viton

Pressure Range

  • Inches WC: 0 to 25

Enclosure, Body Material

  • Aluminum
  • Stainless Steel

Pressure Type

  • Differential

Lens

  • Window: Glass Lens
  • Window: Plastic Lens

Actuator Type

  • Convoluted Diaphragm

Fill Material

  • Glycerin
  • Silicone

Electrical Connectors

  • Adapter: 1/8” NPT Female

Process Temperature

  • Maximum

Accuracy

  • ± 2 % - Ascending

Switch Type

  • SPDT
  • SPST

Electrical Rating

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

Mounting

  • Pipe Mounting Bracket

Size

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

Diaphragm Material

  • Buna-N
  • EPDM
  • Viton

Static Pressure

  • Maximum

Typical Applications

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