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Cordis Proportional Pressure Controls

Precise, linear digital pressure control within a closed-loop system with ultra high resolution and repeatability.

The Clippard Cordis is a revolutionary microcontroller primed for escape velocity from a proportional control market that has grown stagnant. Built with the highest quality Clippard EVP and DVP proportional valves at its heart, the Cordis is designed to outperform the competition in every way. With unparalleled performance and flexibility not possible with current analog proportional controllers, the Cordis makes everything from calibration to sensor variety acceptance to future development opportunities more accessible and less complicated. The future of proportional pressure control has arrived, and it's digital.

Electronic Proportional Pressure Controls

Primary Cordis Benefits:

  • Smooth linear control
  • Real time adjustable PID control
  • Multiple flow configurations
  • Static or dynamic applications with the same proportional regulation
  • No integral bleed required
  • Customizable pressure ranges and mounting options






 

Known for reliability, innovation, and focus on miniature pneumatics, Clippard's new Cordis controls utilize the proven EVP and DVP lines of electronic proportional valves allowing for steady, repeatable downstream pressure as demand or processes change. The result, a precise linear pressure control within a closed-loop system with ultra high resolution and repeatability.

The Cordis uses a microcontroller, integrated pressure sensor, and two Clippard proportional valves. The inlet valve is connected to the moderately regulated supply pressure and the exhaust valve is connected to a port that vents excess pressure to atmosphere. Once a command is increased, the inlet valve opens up to allow supply pressure to pass over the sensor element which provides an active feedback for this microcontroller to satisfy the set point in the process. If at any point the sensor detects a value higher than the set point, the exhaust valve will modulate open to vent off the excess pressure to maintain a stable and accurate control pressure in the process.

The Cordis is adaptable to a variety of sensors that can close the loop around not only pressure, but vacuum or flow.

Consult Clippard for application specifications to confirm viability.


Medium   Clean, dry, non-corrosive gases  

Wetted Material   EVP Valve: Specifications
DVP Valve: Specifications

Valve Type:   Normally-Closed

Operating Pressure Range   0 to 150 psig

Typical Flow   2.7 to 65 l/min (±10% @ 100 psig)

Typical Response Time   < 20 ms (application dependent)

Accuracy   ±0.25% of full scale

Resolution   ≤ 5 mV

Max. Hysteresis   ±0.05% of full scale

Linearity   ±0.05% BFSL

Port Size   1/8" NPT, G1/8

Signal/Command  

Analog: 0 to 10 VDC;
Digital: 3.3 VDC Serial


Current Draw   <250 mA max.

Temperature Range   EVP & DVP Valves: 32 to 120°F

Mounting Attitude   Any

Filtration   40 micron

 

 

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