PCD–Dual Valve Absolute and Gauge Pressure Controllers
Fast-responding pressure or vacuum control for closed volumes.
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Control the absolute pressure (referenced to vacuum) or gauge pressure (referenced to local barometric pressure) of gases or liquids in your process. Alicat’s PCD series dual-valve pressure controllers use two proportional valves to precisely control the pressure of gases within closed or dead-ended volumes. They achieve new setpoints rapidly and stay put, even in the face of uneven feed pressure or changing temperatures. We’ll use your application parameters to customize your valve and PID tuning to ensure that your controller delivers fast and stable control.
- Fast & Accurate. Very fast valves and PID control algorithms hit pressure setpoints in milliseconds with NIST-traceable accuracy.
- Connected. Easy integration into your digital industrial network with Ethernet/IP, EtherCAT, DeviceNet, Profibus, Modbus (RTU and TCP/IP) or serial communications options.
- Efficient. The dual-valve design incorporates a second proportional valve to exhaust excess pressure, but only when needed to maintain your setpoint. This eliminates the need to continuously bleed costly gas.
Alicat’s PCD series uses small proportional valves for control at lower flow rates and is suitable for use with non-corrosive gases.
PCD-10TORRA-D (IVC for vacuum)
PCD-100TORRA-D (IVC for vacuum)
Alicat’s PCDP series offers the largest orifice in a small valve format and is suitable for use with non-corrosive gases.
Alicat’s PCDH series pairs two small valves working side-by-side as one and is suitable for use with non-corrosive gases.
Alicat’s PCRD series uses nearly frictionless Rolamite valves and a variety of orifice patterns for control at high flow rates and is suitable for use with non-corrosive gases.
PCRD-10TORRA-D (IVC for vacuum)
PCRD-100TORRA-D (IVC for vacuum)
Alicat’s PCDS series uses small proportional valves for control at lower flow rates and is suitable for use with liquids and corrosive gases.
Alicat’s PCDHS series is suitable for use with liquids and corrosive gases and pairs two valves working side-by-side as one to provide greater control at higher pressures.
Alicat’s PCRDS series is suitable for use with liquids and corrosive gases and uses nearly frictionless Rolamite valves and a variety of orifice patterns for control at high flow rates.