Pressure Controllers For Closed Volumes
Dual valve pressure controllers from Alicat eliminate the need for a bleed valve for pressure control in closed or dead-ended volumes. They are available with internal pressure sensors, or with remote sensors that can be plumbed to any point in your process. Each pressure controller is compatible with non-corrosive gases, and anti-corrosive models are available for use with corrosive gases or liquids.
PCD-Series Dual Valve Absolute and Gauge Pressure Controllers use two proportional valves to precisely control the absolute or gauge pressure of gases within closed or dead-ended volumes.
- Fast & accurate. Custom valve sizing and PID tuning ensure controllers reach pressure setpoints in milliseconds and maintain control with NIST-traceable accuracy to ±0.125% of full scale.
- Efficient, versatile control. Maintain absolute or gauge pressure immediately upon powering up, with readings displayed in your choice of engineering units. Additionally, the second proportional valve exhausts excess pressure only when needed to maintain your setpoint, eliminating the need to continuously bleed costly gas.
- Easy integration. Custom process ports and electrical connectors, and your choice of EtherNet/IP, EtherCAT, DeviceNet, Profibus, Modbus (RTU and TCP/IP), or serial communications for easy integration into your industrial process.
PCD-Series Dual Valve Differential Pressure Controllers use two proportional valves to maintain differential pressure between any two points in processes flowing gases within dead-ended volumes.
- Fast & accurate. Custom valve sizing and PID tuning ensure controllers reach pressure setpoints in milliseconds and maintain control with NIST-traceable accuracy to ±0.125% of full scale.
- Efficient, versatile control. Maintain differential pressure between any two points or keep one port open to atmosphere and control gauge pressure, with readings displayed in your choice of engineering units. Additionally, the second proportional valve exhausts excess pressure only when needed to maintain your setpoint, eliminating the need to continuously bleed costly gas.
- Easy integration. Custom process ports and electrical connectors, and your choice of EtherNet/IP, EtherCAT, DeviceNet, Profibus, Modbus (RTU and TCP/IP), or serial communications for easy integration into your industrial process.
- Accessories included with purchase: FlowVision software (free download)
Contact us to discuss your pressure controller for closed volume application, to access specifications and receive a price quotation.