HVSF Series Speed Control Valves (HVSF, HVSF-A)

HVSF Series Speed Control Valves

HVSF and HVSF-A are manual speed control valves for pneumatic air lines. They are used when the air flow needs to be adjusted by hand near a cylinder, valve port, manifold or compact machine area.

Both types use a push-to-connect tube port and a threaded connection. The blue release ring is used for pneumatic tubing, and the threaded side is installed into the equipment port.

The main difference is the inlet direction. HVSF is the thread side inlet type. HVSF-A is the pipe side inlet type. This allows the valve to be selected according to the air flow direction required by the pneumatic circuit.

The adjustment knob is turned by hand to control the air flow rate. This can help adjust cylinder movement speed, reduce sudden movement, or fine-tune a small air circuit during machine setup.

Choose the model according to the tube outside diameter, thread size and required flow direction. Metric and inch tube sizes are available, so both the tube size and the port thread should be checked before ordering.

During installation, cut the tube end flat and keep the tube surface clean. Push the tube fully into the fitting, then pull it back gently to confirm that it is held. After air pressure is applied, check the tube side and threaded side for leakage.

These speed control valves are often used in pneumatic cylinders, small automation machines, packaging equipment, control panels and general compressed-air systems.