• Stepper-Controlled Proportional Valve 0-600L/min
Stepper-Controlled Proportional Valve 0-600L/min
Product Serial:
  • Compact
  • Low cost
  • High sensitive
  • Analog / Digital signal
  • Easy-control
  • Full scale linearity flow rate control
Series PM provides series FC with the required power and control signal (step and direction). It controls the step of a bipolar stepper motor with an analogue signal (1-10 Vdc/4-20mA/RS485 Modbus).

Utilizing the industry’s most robust and powerful linear actuator, the high-flow stepper-controlled proportional valve outperforms the competition in performance and durability.
This valve is ideal in critical applications such as gas delivery, medical, analytical, and industrial automation requiring high resolution, high flow, and low hysteresis. In addition, the unique design allows for custom flow profiles when required.


Input signal DC0-10V / 4-20mA/ RS485
Supply DC24V (≦5W)
Power Consumption 1.92 watts consumption to maintain position.
3.72 watts nominal only during adjustment.
Command Resolution 0.1 mA / 0.03 V
Temp. Range(Operating) 0-60℃


Model FC-20 FC-120 FC-300 FC-1000
Valve Type 2-Way Proportional Needle valves
Port Size G 1/8” G3/8"
Medium Compatible gases and liquids  
Wetted Material FKM Aluminum and FKM  
Pressure Range -1~7bar -1~5bar
Flow Range 0~50L/[email protected] 0~240L/[email protected] 0~290L/[email protected] 0~600L/[email protected]
Linearity ±2% ±0.1~1% ±0.2~5% 11%
Repeatability ±0.1% F.S. ±0.1% F.S.* ±0.1% F.S. ±0.1% F.S.*
Flow Resolution 0.1L/step 0.1L~0.2L/step* 0.2L~0.75L/step* 1L /step*
Position Resolution 0.0127 mm/step 0.0127 mm/step 0.0254 mm/step 0.0254 mm/step
Temperature Range 0~84°C
Driver Bipolar chopper drive required 
Response Time 0.8 sec. fully-open to fully-closed
Seals FKM standard. Others available.
*According to different spindle sizes