FESTO Lever-operated Valve - 33003
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Tameson UKFesto 3/2 No/Nc Monostable Toggle Lever Valve Pk-3 80L/Min - 33003
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Product Information
Full details
The FESTO KH/O-3-PK-3 is designed for industrial technicians and automation engineers who require precise, manual pneumatic flow control in mechanical systems. This 3/2 monostable toggle lever valve offers a reliable method for directing air flow with an operating pressure up to 8 bar, though it is intended for manual operation and is not suitable for applications requiring automated solenoid-driven timing.
All features
| Model Part Number | 33003 |
|---|---|
| Brand | FESTO |
Extended Product Information
FAQs
What does 3/2 monostable mean?
It means the valve has 3 ports and 2 switching positions, and it is spring-returned to its initial state when the lever is released.
Can I use this for liquid applications?
No, this valve is designed specifically for pneumatic (compressed air) systems.
What is the maximum operating pressure?
The maximum operating pressure is 8 bar.
Is the lever replaceable?
The valve is a sealed unit; if the lever mechanism is damaged, the entire valve typically requires replacement.
What tubing size fits the PK-3 connector?
The PK-3 connector is designed for standard pneumatic tubing matching the Festo PK-3 series specifications.
Troubleshooting
Air leakage at the connector port
Ensure the tubing is cut squarely and pushed fully into the PK-3 fitting; trim the end of the tube if it has become worn or deformed.
Valve lever is difficult to actuate
Check for mechanical debris surrounding the toggle hinge or check if the operating pressure exceeds the 8 bar maximum, causing excess friction on internal seals.
Air does not flow when toggled
Verify that the inlet supply line is pressurized and that no kinks are present in the tubing downstream.
Pros and Cons
Pros
- Simple and intuitive manual lever actuation
- Compact design ideal for crowded control panels
- High-quality piston seal construction for durability
- Easy installation with push-in pneumatic connections
Cons
- Requires manual intervention, not suitable for automated electronic control
- Limited to 80 l/min nominal flow, insufficient for high-volume air demands
- Manual toggle may be prone to accidental activation if not protected
Setup, Compatibility & Care
To install, insert your pneumatic tubing firmly into the PK-3 connectors until fully seated. Ensure the air supply is regulated to stay within the 0-8 bar range to prevent premature wear. For maintenance, keep the valve free from debris and contaminants by ensuring the air source is properly filtered. If the valve feels stiff, check for external mechanical obstructions around the lever; do not apply industrial lubricants internally, as this can degrade the internal piston seals. Always verify that your tubing size is compatible with the PK-3 standard before finalizing the installation.