Fast Pressure Controllers & Transducers


EPC–OEM Electronic Pressure Controllers

Essential pressure control for flowing OEM applications


Order Directly from Alicat


Electronic pressure controllers, or electronic pneumatic controllers, are highly customizable for easy integration within original equipment manufacturer (OEM) products. Alicat’s EPC delivers high accuracy and fast, closed-loop control in a compact, competitively-priced package.

  • Repeatable. EPC pressure regulators give you laboratory-grade performance at a reasonable price. NIST-traceable accuracy and reliable control keep your product repeatable.
  • Responsive. Quench pressure spikes as they happen. Industry-leading control speed and adjustable PID valve tuning ensure your product operation is not upset.
  • Configurable. We can customize the valves, ports, sensors and communications to precisely suit your product design and application requirements.

Available Ranges (see Part Numbers tab for stock ranges)

  • Absolute pressure ranges (referenced to vacuum)
    • EPC: max 0-300 psia, min 0-15 psia
  • Gauge pressure ranges (referenced to atmosphere)
    • EPC: max 0*-300 psig, min 0*-2 inH2Og
    • *Negative gauge pressure readings (to -15 psig) can also be included in gauge ranges.


  • Operating range (Turndown ratio): 200:1
  • Calibration accuracy, NIST-traceable: +/- 0.125% of the full-scale range
  • Repeatability: 0.05% of the full-scale range
  • Typical control response time constant: 100 ms (dependent upon line sizing and the volumes and pressures involved)
  • No warm-up time required

Operating Conditions

  • Compatible gas media: all non-corrosive gases.
  • Operating temperature: -10°C to +60°C
  • Burst pressure: 3x the full-scale range

In the Box

Build Options

  • Analog signals (0-5v, 1-5v, 0-10v, 4-20mA)
  • Digital communications protocols (RS-232, RS-485, Modbus-RTU)
  • Process connections (NPT, SAE, downport, NeSSI)

Absolute Pressure:


Gauge Pressure:


Split Flow Gas Chromatographs

Alicat’s EPC maintains stable carrier gas flow rates at the sample injector within a gas chromatograph. A second backpressure EPC on the split flow vent ensures sufficient column head pressure. Small size, fast response and dual analog/digital communications make the EPC easy to build into OEM products.


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