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Bellofram I/P Pressure Transducer 0-120 PSI, 4-20 mA, NEMA 4X
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Manufacturer: Marsh Bellofram Corporation

Mfg Product Code: 966-716-000

Weight: 2.0 lb(s)

On Hand: 0

Bellofram 966-716-000 Type 1500 NEMA 4X electro-pneumatic I/P transducer with FM/CSA approvals convert an electrical input signal to a proportional pressure output. The pneumatic output is both linear and proportional to the analog 4-20 mA input command signal. Standard features include, small compact size, built-in volume booster, external zero & span adjustments, field reversible, low cost. All Type 1500 transducers have CE certification, can be mounted at any angle, and offer high vibration resistance. The Type 1500 is a force balanced device in which the coil is suspended in the field of a magnet by a flexure. Current flowing through the coil generates axial movement of the coil and flexure. The flexure moves against the end of a nozzle, and creates a back pressure in the nozzle by restricting air flow. The back pressure acts as a pilot pressure to an integral booster relay. Consequently, as the input signal increases (or decreases, for reverse acting), output pressure increases proportionally. Applications include valve actuators & positioners, HVAC systems, clutches & brakes, paper handling, textile processes, and many other industrial applications where precise pneumatic control is required. 


  • Electrical Input Signal: 4-20 mA, 2 wire
  • Pneumatic Output: 0-120 PSI
  • Accuracy: Linearity < 1.0%, Hysteresis < 1.0%, Repeatability < 0.5%
  • Pressure Ports: 1/4" female NPT
  • Flow Rate: 9.0 SCFM minimum @ 15 PSI ouput
  • Supply Pressure: 125-150 PSI maximum
  • Supply Pressure Sensitivity: < 1.7% of span
  • Supply Air: Oil free clean dry filtered air (instrument quality)
  • Exhaust Capacity: > 1.0 SCFM @ 5 PSI above set point
  • Low Air Consumption: 18.0 SCFH @ maximum output pressure
  • Vibration: High vibration resistance
  • Temperature Range: -20 °F to 150 °F, temperature compensated
  • Zero & Span: External adjustment on front of unit for recalibration
  • Enclosure Rating: NEMA 4X
  • Electrical Connection: 1/2" Conduit w/18" lead wires
  • Electrical Approvals: FM, CSA, and CENELEC Instrinsically Safe, CE mark
  • Field Selectable: Direct acting or reverse acting
  • Mounting: In-line, panel mount (bracket included)
  • Housing Material/Seals: Aluminum (painted)/Nitrile seals

670.91 670.91 USD 709.96


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    Product Datasheets

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