Single-Valve Dynamic Pressure Controller Single-Valve Dynamic Pressure Controller


Single-Valve Dynamic Pressure Controller

The QKL-UHR/QKL-B1HF is an ultra-high resolution proportional control valve that can be mounted panel or sub-base manifold. This series is an electronically controlled closed loop pressure regulator. The device converts a command signal to customers' specified pressure range. The QKL-UHR/QKL-B1HF consists of a control circuit board, one solenoid valve, an integral electronic pressure sensor, and a manifold. The control board compares the command signal to the integral pressure sensor, then drives the solenoid valve so that desired pressure is maintained even if the required flow rate varies.

Two types of pressure regulator can be selected: pressure controller with built-in bleed, or pressure controller without built-in bleed. With built-in bleed version, the application does not consume any gas. The valve acts as pressure regulator with small exhaust capacity. Without built-in bleed version, the application consume gas or the gas is flammable. There is also a selection of different venting orifice made from ruby, converting this pressure regulator to a high accuracy and high resolution gas flow rate controller. Please consult us for suitable orifice.

All our products have CE, SGS, RoHS certification with ISO13485 quality system.


  • Compact
  • High Precision
  • High Sensitivity


  • Compact high resolution pressure control
  • Multiple manifold configurations
  • Dynamic proportional pressure control
  • High resolution flow rate control
Output Range 2 / 5/ 10 bar ( 29 / 72 / 145 psig)
Supply Pressure Max 11.5 bar (165 psi)
Input Signal 0-10V / 4-20mA / RS485
Monitor Output 0-10V / 4-20mA / RS485
Supply DC24V (≦3W) DC24V (≦5W)
Medium Clean compressed air or with 5 µm filter
Repeatability ±0.02% F.S. ±0.05% F.S.
Resolution (max) ±0.015% F.S. ±0.03% F.S.
Accuracy ±0.25% F.S. ±0.1% F.S.
Hysteresis ±0.02% F.S. ±0.1% F.S.
Flow Rate 2.5L/min @ 1bar (orifice: 0.45mm) 3L/min @ 1bar (orifice: 0.5mm)
120L/min@1bar (orifice: 3.0mm)
Temp. Range (Operating) 0 ~ 70 ⁰C (32 ~ 158 ⁰F)
Port Size M5 and G1/8" G1/8"
Manifold Material Aluminum
Wetted Materials Aluminum, Stainless steel, Brass, FKM
Electrical Connection EDZ1550/7 M12 Connector (2m)
Ruby orifice selection 0.2 / 0.3 / 0.4 / 0.5 / 0.6 mm