Pressure Controllers & Transducers


EPCD–Series: Dual Valve OEM Electronic Pressure Controllers

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.

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  • *Gauge pressure ranges: max 0–100 PSIG, min 0–1 PSIG
    • *Negative gauge pressure readings (to –15 PSIG) can also be included in gauge ranges.
  • Absolute pressure ranges: max 0–100 PSIA, min 0–15 PSIA
  • Steady state control range: 0.01% – 100% of full scale
  • Calibration accuracy, NIST-traceable: ±0.125% of full scale
  • Repeatability: ±0.08% of full scale
  • Typical control response time: as fast as 50 ms
  • Warm-up time: <1 s
Operating conditions
  • Compatible gas media: all non–corrosive gases.
  • Operating temperature: –10°C to +60°C
  • Burst pressure: 3x full scale
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, BSPP
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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