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Festo Pneumatic Valve - 5/2 Bistable, G1/4

Festo Pneumatic Valve - 5/2 Bistable, G1/4

The Festo 5/2 bistable pneumatic valve offers robust performance with a standard nominal flow rate...

Best current price£114.90from Tameson UK

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Tameson UKFesto 5/2 Bistable Pneumatic Valve G1/8 600L/Min - 8823
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Rapid Online - Rapid Electronics Ltd.FESTO 8823 Pneumatic valve JH-5-1/8 0-10 bar 1pc
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eBayFesto Pneumatic Valve JH-5-1/2 10165 With Muffler U-3/8 10165
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Product Information

Full details

This guide is for industrial automation professionals and engineers who need reliable pneumatic control. The Festo JH-5/2-1/4-EX bistable pneumatic valve offers a high nominal flow rate and durable all-metal construction for precise air management. A key caveat is its requirement for a clean, dry air supply to maintain optimal performance and longevity.

All features

Model Part NumberJH-5-1/4-EX
BrandFesto

Extended Product Information

FAQs

What is a bistable valve?

A bistable valve maintains its last position (state) even after the control signal is removed. It requires a new signal to change to the alternative position.

What is the nominal flow rate?

The nominal flow rate of 1100 l/min indicates the volume of air the valve can pass per minute under standard test conditions, signifying its capacity for fast pneumatic device operation.

Can this valve be used in hazardous areas?

Yes, ATEX-compliant variants of this valve are available, making them suitable for use in potentially explosive environments.

What is the required air quality for this valve?

The valve requires clean, dry compressed air. It is recommended to use inline filters to protect the valve from moisture and particulates, ensuring longevity and reliable operation.

What type of mounting does this valve use?

This valve features a through hole mounting style, allowing it to be securely fastened to surfaces using screws.

What is the maximum operating pressure?

The valve operates reliably within a pressure range of 0 to 8 bar.

Does the solenoid coil come included?

The description indicates 'solenoid fitted', but it's best to confirm if the coil is pre-installed and what its specifications (voltage, etc.) are for your specific purchase. Often, coils are sold separately or as part of a complete assembly.

Troubleshooting

Valve does not switch states

Verify electrical power to the solenoid. Check for correct voltage and sufficient current. Ensure pneumatic supply pressure is within the operating range (0-8 bar). Inspect pilot air lines for blockages or leaks.

Slow actuator response

Check for restrictions in the pneumatic lines or actuator. Ensure the air supply pressure is adequate. Verify that the nominal flow rate of the valve (1100 l/min) is sufficient for the connected actuator's volume.

Air leaks from valve body or ports

Tighten pneumatic connections. Inspect seals and gaskets for damage. If leaks persist, the valve may require replacement.

Valve fails in high-temperature environments

Ensure the ambient temperature is within the specified operating range (-10°C to +60°C). Overheating can affect solenoid performance and material integrity.

Pros and Cons

Pros

  • Durable all-metal construction ensures long service life.
  • High flow rate supports fast actuator response.
  • Bistable function reduces energy consumption by holding position.
  • Standard G1/4 connections simplify integration.
  • ATEX compliance available for hazardous environments.

Cons

  • Requires clean, dry air supply for optimal performance.
  • May require specific solenoid coils not always included.
  • Bistable nature requires a signal to change state, unlike monostable valves.
  • All-metal design might be heavier than plastic alternatives.
  • Operating temperature range, while decent, has limits.

Setup, Compatibility & Care

Setup:

  1. Ensure the air supply is clean, dry, and within the specified pressure range (0-8 bar).
  2. Connect the pneumatic lines to the G1/4 ports, ensuring a secure fit to prevent leaks.
  3. Mount the valve using the through-hole mounting style, ensuring it is firmly secured.
  4. Connect the electrical control signal to the solenoid, observing correct voltage and polarity if applicable.

Compatibility:

  • Compatible with standard pneumatic tubing and fittings for G1/4 connections.
  • Suitable for use with most common industrial compressed air systems.
  • Electrical interface compatibility depends on the specific solenoid coil used (sold separately or as part of a pre-assembled unit).
  • Ensure the control system provides the correct voltage and current for the solenoid.

Care:

  • Regularly inspect for air leaks at connection points.
  • Maintain the compressed air supply by using appropriate filters to remove moisture and particulates.
  • Avoid exposing the valve to extreme temperatures outside the -10°C to +60°C range.
  • Periodically check the solenoid for proper function and clean any external dust or debris.

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