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Bellofram E/P Pressure Transducer 0-120 PSI, 0-10 VDC, Conduit
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Manufacturer: Marsh Bellofram Corporation

Mfg Product Code: 969-756-001

Weight: 2.0 lb(s)

On Hand: 0

The Bellofram 961-146-000 Type 75HR High Relieving Precision Air Relay/Boosters use a pilot pressure signal to accurately control output pressure over a wide range of flow and supply pressure variations. Relays are most commonly used when increased flow capacity or remote pressure control is required. The signal pressure vs. output pressure has a 1:1 ratio, meaning output pressure will be the same as the pilot signal pressure. The pilot signal pressure is usually supplied with a small regulator from a remote location or from an electro-pneumatic transducer. Flow rates up to 40 SCFM. The unique rolling diaphragm is sensitive to output pressure changes as little as 0.05 inches of Hg, superior to most relays on the market. Typical applications include: volume boosting, roll loading, cylinder control, tensioning control, industrial clutch & brake control. 


  • Electrical Input Signal: 0-10 VDC
  • 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 typical
  • 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
  • Max. Air Consumption: 18 SCFH @ max. output pressure
  • Vibration: < 0.7% of span per 0.5 g-level 25-100 Hz
  • Temperature Range: -20 °F to 150 °F, temperature compensated
  • Zero & Span: External adjustment on front of unit for recalibration
  • Electrical Connection: 1/2" conduit w/18" lead wires
  • Enclosure Rating: General Purpose
  • Agency Approvals: CE mark
  • Field Selectable: Direct acting or reverse acting
  • Mounting: In-line, panel mount (bracket included)
  • Housing Material/Seals: Aluminum (painted)/Nitrile seals

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    Product Datasheets

    Datasheet 1