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Instantly add the Model 122 Piston Type Differential Pressure Gauge & Switch and 50,000+ more product series to your store or catalog  
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Mid-West Piston Type Differential Pressure Gauge and Switch, Model 122

Model 122 Piston Type Differential Pressure Gauge & Switch

Brand: Mid-West Instrument
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Mid-West Piston Type Differential Pressure Gauge and Switch, Model 122 Mid-West Piston Type Differential Pressure Gauge and Switch, Model 122 Mid-West Piston Type Differential Pressure Gauge and Switch, Model 122 Mid-West Piston Type Differential Pressure Gauge and Switch, Model 122 Mid-West Piston Type Differential Pressure Gauge and Switch, Model 122
Piston type gauges are primarily designed for liquid applications. 

Differential Pressure is sensed by the movement of a precisely ground floating piston/magnet in a precision bore against a calibrated spring. 

Any variation in pressure on either side of the piston/magnet will cause the magnet to move proportionally to the change in differential pressure. 

A rotary pointer magnet located close to the internal magnet, but outside the pressure housing, follows the movement of the piston magnet and indicates differential pressure on the dial. 

Piston type DP gauges exhibit a slight amount of bypass as the fluid crosses from the high to the low pressure port. 

Due to precision sizing of piston and body bore, leakage across the piston will not exceed 15 SCFH air at 100 psid at ambient conditions.
Features
  • Simple, rugged, compact design
  • Working pressure up to 3,000 psig (200 bar)
  • Over-range protection to maximum pressure
  • Body material: Aluminum with 316 stainless steel internals
  • Weather-resistant construction standard
  • Shatter resistant acrylic lens
  • Variety of Dial type and Sizes: 2-1/2", 3-1/2" & 4-1/2"
  • Available DP Ranges: Inches H2O, psid, bar, and kPa
  • ¼" Female NPT End Process Connections
  • Panel Mountable, Wall mount available as option
  • Temperature Limits: -40° to 200° F (-40° to 93° C)

Specifications

Brand

Accuracy

  • ± 5 %

Approvals & Certifications

  • CE
  • CSA
  • UL (C,US)

Diaphragm Material

  • Ethylene Propylene (EPR)
  • Neoprene
  • Teflon
  • Viton

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • IP65
  • IP66
  • NEMA 4X

NACE & NIST

  • NACE MR-0175

NPT Connection

  • 1/4” NPT Female

Pressure Type

  • Differential

Set Point - Decreasing

  • bar: 0 to 7
  • kPa: 0 to 700
  • psi: 0 to 110

Set Point - Increasing

  • bar: 0 to 7
  • kPa: 0 to 700
  • psi: 0 to 110

Switch Type

  • SPDT 3 W, 125 Vac/dc, 0.25 A, 60 W, 240 Vac/dc, 1 A
  • SPST 60 W, 240 Vac/dc, 3 A

System Pressure

  • bar: 0 to 200
  • kPa: 0 to 20,000
  • psig: 0 to 3,000

Documentation

Data Sheets

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