A needle valve is the typical flow control valve that controls the flow rate based on the change of resistance of the flow channel using an acicular or rod-shaped needle to adjust the opening of the flow channel that functions as a small orifice. KOFLOC offers simple-type, precision-type and various other needle valves, and also manufactures flow controllers having a combination of a needle valve and diaphragm as well as proportional solenoid valves that electrically control the flow rate.
Fluid:N₂,Air,H₂,He,Ar,O₂,CO₂ etc.
Ultra-compact, lightweight and single power source.
Low power consumption (max. 2 W).
Hysteresis not exceeding 15%.