High flow, 2-way normally closed (NC) proportional valve designed to deliver precise flow range from 0.5 slpm up to 540 slpm. Ideal for respiratory applications that require low hysteresis, rapid response and highly repeatable pressure and flow control.

Product Information

The PACE Hf is a high flow miniature proportional valve utilizing a Parker Advanced Technology actuator to deliver precise control over a wide range of flow while consuming less than 1 watt of power. With an unparalleled controllable flow range of 0.5 to 540 slpm and a lower leak rate than metal seted proportional valves, the PACE Hf is the ideal solution for flow control applications sensitive to repeatability, hysteresis, and response time, leak and power consumption.
  • Wide controllable flow range and tight control with inlet pressures up to 100 psi
  • Balanced inlet and outlet pressure ideal for precise pressure control
  • Low power consumption generates less heat
  • Small size and light weight ideal for portable applications
  • Proven performance tested to 100 million life cycles
  • RoHs compliant.

Typical Applications:

  • Acute & Sub-Acute Ventilators
  • Portable Ventilators
  • Anaesthesia
  • Pressure & Flow Control
  • Mass Flow Controllers

Technical Specifications

Typical Applications:Acute & Sub-Acute Ventilators, Portable Ventilators, Anaesthesia, Pressure & Flow Control, Mass Flow Controllers
Orifice Sizes Available:0.128" (3.35 mm)
Thermal Compensation:Non-Thermally Compensated
Control Method:0-10 VDC
Cleanliness:Oxygen Clean
Valve Type:2 Way Normally Closed
Life (# cycles):Up to 100 Million Cycles
Pneumatic Connection Options:Manifold mount
Electrical Connection Options:Lead Connector
Leak Rate: Voltage Configurations Available:12 VDC
Power Consumption (Watts):0.6W Steady State
Weight:1.7 oz (47 g)


Flow Rate Range:0.5 slpm to 540 slpm
Pressure Range:0 to 100 psi


Width:1.0 in (25.4 mm)
Height:2.29 in (58.12 mm)
Length:1.35 in (34.29 mm)

Wetted Materials

Body/Stem Base:C36000 Brass
Seals(Elastomer):FKM, 17-4 PH Stainless Steel
All other:FKM, 17-4 PH Stainless Steel

Data Sheet

Click to download the Technical Specification of PACE Hf Miniature Proportional Valve