Fast Pressure Controllers & Transducers


EPCD–Dual Valve OEM Electronic Pressure Controllers

Essential pressure control for dead-ended OEM applications


Order Directly from Alicat

Dual-valve electronic pressure controllers use two proportional valves to precisely control the pressure of gases within closed or dead-ended volumes. They are highly customizable for easy integration within original equipment manufacturer (OEM) products. Alicat’s EPCD delivers high accuracy and fast, droop-free closed-loop control in a compact, competitively-priced package.

  • Repeatable. EPCD pressure regulators deliver NIST-traceable accuracy, reliable control and adjustable PID valve tuning to keep your product operation repeatable.
  • Efficient. Waste no more. The dual-valve design incorporates a second proportional valve to release excess pressure, which eliminates the need to continuously bleed costly gas.
  • Configurable. We can customize the valves, ports, sensors and communications to precisely suit your product design and application requirements.

Available 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.


  • 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:


Fluidic Dispensing for Flow Cytometry

Dual-valve EPCDs control the head space pressures to propel the sheath fluid and the cellular sample through the flow cytometer’s laser. High EPCD accuracy and wide usable ranges make possible the dispensing of precise amounts of fluid.


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