AVENTICS Pneumatic Directional Control Valve Series HF04 0820062051 Spare

When a double-acting clamp cylinder on a woodworking machine stops reversing, or a solenoid coil burns out and the spool stays put, the machine sits idle. This valve addresses that failure point: a single-solenoid 5/2 valve with spring return, so when the signal drops, the spring pushes the spool back to its rest position.

The HF04 0820062051 is a 5/2 directional control valve: five ports, two positions, single solenoid actuation, spring return. It fits pneumatic circuits on woodworking machinery that use double-acting cylinders. A buyer confirms fit by matching the 5/2 function, single-solenoid and spring-return arrangement to the valve being replaced, then cross-checking the port pattern and coil connection against the machine's pneumatic diagram.

Mounting is straightforward: fix the valve body, connect the five ports per the circuit, and wire the single solenoid. The detent manual override lets you shift the spool by hand during setup or troubleshooting without energizing the coil.

Supply comes as the valve only; no packaging, customisation, MOQ or lead time is stated here. Ambient range is -5 °C to 50 °C, minimum working pressure -.9 Bar. With an enquiry, send the machine model, the pneumatic diagram or a photo of the existing valve, the coil voltage you need, and the quantity.

What the specification fixes, and what it leaves to the machine:

• Spring-return fail position — With spring return, the spool goes to its rest position when the solenoid signal drops, so a double-acting cylinder retracts instead of holding pressure.
• Five-port circuit fit — The 5/2 switching principle gives five ports and two positions, matching circuits that drive double-acting cylinders on woodworking machines.
• Single-solenoid wiring — Single solenoid actuation means one coil to wire, which simplifies the electrical connection at the valve and reduces the number of control outputs needed.
• Manual override during setup — With detent manual override, you can shift the spool by hand and it stays put, useful for checking cylinder movement before energizing the coil.
• Dust and water protection — IP65 protection class covers the housing against dust ingress and water jets, relevant where wood chips and coolant spray reach the valve.
• Status check at the coil — A yellow LED at the solenoid shows when the coil is energized, so a fitter can confirm the signal is reaching the valve during troubleshooting.
• Cold-shop temperature range — The -5 °C lower ambient limit means the valve can sit in an unheated shop or a cold morning start without the ambient temperature being outside its range.

What changes on the shop floor once the unit is in place:

• Cylinder returns on signal loss. Spring return sends the spool to rest when the coil de-energizes, so a clamp or feed cylinder retracts instead of staying pressurized and stalling the next cycle.
• One coil to wire and diagnose. Single solenoid actuation means one electrical connection per valve, which shortens wiring time on a replacement and gives the fitter one point to check when the circuit faults.
• Setup without power. Detent manual override lets you stroke the valve by hand and have it stay shifted, so you can verify cylinder direction and port piping before the coil is energized.
• Visible solenoid status. The yellow LED shows coil energization at the valve, so a maintenance fitter can tell a signal problem from a stuck spool without pulling out a multimeter first.
• Built for dusty shop air. IP65 protection class keeps dust and water jets out of the housing, which suits woodworking areas where chips and coolant are part of daily operation.
• Works across shop temperatures. The -5 °C to 50 °C ambient range covers cold morning starts and warm running conditions, so the valve does not need a climate-controlled cabinet to stay in spec.

Match the 5/2 function, single-solenoid actuation and spring return against the valve you are replacing. Then check the port pattern and coil connection on the machine's pneumatic diagram, and send a photo of the old valve with your enquiry.

Five ports and two positions. That arrangement drives a double-acting cylinder in both directions, with the spring return setting the rest position when the solenoid is off.

Yes. The valve has a detent manual override, so you can shift the spool by hand and it stays in position while you check cylinder movement or piping.

The spring return pushes the spool back to its rest position. The cylinder connected to the valve then moves to the position set by that rest state instead of holding pressure.

The protection class is IP65, so the housing resists dust ingress and water jets. That suits shop areas where wood chips and coolant spray are present.

From -5 °C to 50 °C. Check the air temperature around the manifold on a running machine, especially if the valve sits near a heat source.

The minimum working pressure is -.9 Bar. Confirm your circuit's pressure against that figure before fitting the valve.

Send the machine model, the pneumatic diagram or a photo of the existing valve, the coil voltage you need, and the quantity. That lets the supplier confirm the 0820062051 matches your application.