Proportional Pneumatic Control Valve

A customer was looking to control the volume of air passing through a secondary actuation device in an automotive application. TLX worked with the customer to develop a pneumatic control valve that metered the inlet and outlet pressure to proportionally control an actuator used in EGR and turbocharger wastegate control.

Proportional Pneumatic Control Valve

Typical Applications

  • Proportional pressure or vacuum control
  • EGR control
  • Turbo wastegate control

Features and Benefits

  • Pulse width modulated, proportional flow control
  • Compact fully encapsulated design
  • Can be optimized for specific pressure/vacuum ranges to optimize controllability
  • Can be optimized to configure to customer's electronic drivers


Operating voltage24 Vdc nominal
Operating pressure range-3 to 124 kPa
Operating temperature-40 to 65.5°C
Flow rate24 l/m @ 80 kPa
Leak rate< 1 cc/min
PWM pressure control10-90% duty cycle
PWM vacuum control10-90% duty cycle
Response time< 3 ms
Burst pressure25 bar

* All TLX components are customized to fit system requirements, meaning technical specifications are unique to each customer and design, and the examples given here are for illustration purposes only.

Quality Policy

TLX Technologies, LLC will consistently provide products that meet or exceed the requirements of our customers. The company complies with all of the requirements of the ISO 9001:2015 Quality Management System Standard. We will establish, monitor and work to continuously improve customer satisfaction, technology, productivity, quality and employee engagement.