Festo 5/3 NC Hand Lever Valve - G1/8

The VHEF hand lever valve is a compact, manually actuated 5/3 closed pneumatic valve with a standa...

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Tameson UKFesto 5/2 Monostable Hand Lever Valve G1/8 750L/Min -0.95 - 10Bar/-14 - 145Psi - 4165855
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Product Information

Full details

This Festo VHEF hand lever valve is designed for industrial automation professionals who need precise, manual pneumatic control. Its key benefit is robust and reliable operation in a compact metal housing, allowing for efficient system management. A potential caveat is its specific G1/8 connection, requiring compatible fittings. This 5/3 closed valve features piston slide and disc seat technology for durability, a nominal flow rate of 700 l/min, and operates within a wide pressure range.

All features

Model Part NumberVHEF-HS-P53C-M-G18
BrandFesto

Extended Product Information

FAQs

What does '5/3 closed' mean for this valve?

It means the valve has five ports and three positions. In the 'closed' center position, all five ports are blocked, effectively stopping flow and holding actuators in place.

What is the maximum operating pressure?

The maximum operating pressure for this valve is 10 bar.

What type of pneumatic connection does it use?

It uses a G1/8 pneumatic connection, which is a standard BSPP thread size.

Is this valve suitable for automated systems?

While it is manually actuated, it can be integrated into automated systems if the manual control is part of a sequence or for emergency override.

What materials is the valve housing made of?

The valve housing is made of an aluminum alloy.

What is the nominal flow rate?

The nominal flow rate is 700 liters per minute (l/min).

What is the operating temperature range?

The valve operates between -10°C and +60°C.

Troubleshooting

Valve not switching positions smoothly

Check for obstructions around the lever mechanism. Ensure pneumatic pressure is within the operating range. Verify that connected airlines are not kinked or blocked.

Air leakage from valve body

Inspect all G1/8 connections for proper sealing. Ensure the valve is rated for the applied pressure. If leakage persists, the internal seals may be compromised, and the valve may need replacement.

Actuator not responding correctly

Verify correct port connections between the valve and the actuator. Check the flow rate and pressure of the air supply. Ensure the valve's 5/3 configuration matches the actuator's requirements.

Pros and Cons

Pros

  • Durable aluminum alloy construction for longevity.
  • Compact design saves space in control panels.
  • High flow rate (700 l/min) suitable for many applications.
  • Reliable piston slide and disc seat technology.
  • Ergonomic lever design reduces operator fatigue.

Cons

  • Specific G1/8 connection may require adapters for some systems.
  • Manual actuation means it's not suitable for fully automated sequences without additional control.
  • 5/3 valve configuration might be more complex than needed for simpler applications.
  • Operating temperature range (-10°C to +60°C) may limit use in extreme environments.

Setup, Compatibility & Care

Setup: Ensure all pneumatic lines are clean before connecting. Connect compressed air supply to the appropriate port and pneumatic actuators to the output ports as per the circuit diagram. The G1/8 connection requires a compatible threaded fitting.

Compatibility: This valve is compatible with standard pneumatic systems operating within the specified pressure range (-0.95 to 10 bar). Ensure your air supply meets general pneumatic standards. The G1/8 thread is a BSPP standard.

Care: Regularly inspect the valve for any signs of external damage. Keep the area around the valve clean. No specific lubrication is required due to the valve's internal design. Avoid exposing the valve to corrosive substances or temperatures outside its specified operating range (+60°C maximum, -10°C minimum).

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