Festo 5/2 Bistable Pneumatic Solenoid Valve - JMDH-5/2-3/4-D-4-24DC

This 5/2 bistable air solenoid valve offers a standard nominal flow rate of 6000 l/min, designed f...

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Tameson UKFesto 5/2 Bistable Air Solenoid Valve Size 4 Iso 5599-1 6000L/Min - 12458
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Product Information

Full details

The Festo JMDH-5/2-3/4-D-4-24DC is a high-capacity 5/2-way bistable solenoid valve engineered for industrial automation engineers and maintenance professionals managing complex pneumatic control systems. Its primary benefit is a massive 6000 l/min nominal flow rate, ensuring reliable performance in high-demand industrial applications; however, users should note that as a bistable valve, it requires specific electrical pulse management to maintain its state, unlike monostable variants.

All features

Model Part NumberJMDH-5/2-3/4-D-4-24DC
BrandFesto

Extended Product Information

FAQs

What does bistable mean in this context?

Bistable means the valve has two stable switching positions; it remains in its last position until an electrical signal is sent to switch it to the other state.

Is this valve compatible with existing ISO 5599-1 manifolds?

Yes, it is designed specifically for ISO 5599-1 Size 4 mounting interfaces.

What is the operating voltage?

This model is designed for 24V DC operation.

Can this valve be used for safety-critical circuits?

Due to its bistable nature, it does not have a spring-return to a 'safe' state upon power loss, so it should not be used where a failure-to-safe position is required.

What is the maximum flow rate?

The nominal flow rate is 6000 l/min.

How do I mount this valve?

It is mounted via through-holes onto an ISO-compliant sub-base.

Troubleshooting

Valve fails to switch states

Check the 24V DC supply and ensure both coils are receiving the appropriate pulse signal.

Air leakage at the sub-base interface

Inspect the gasket for debris or damage and ensure the through-hole mounting bolts are torqued to specifications.

Erratic switching behavior

Verify that your controller is not sending conflicting signals to both coils simultaneously.

Pros and Cons

Pros

  • High nominal flow rate of 6000 l/min for demanding applications
  • ISO 5599-1 standard compliance ensures cross-brand interchangeability
  • Bistable design reduces continuous power consumption since it does not require a constant hold signal
  • Durable construction suitable for rigorous industrial use

Cons

  • Requires careful electrical control design to manage the two switching states
  • Size 4 footprint requires adequate space on existing manifolds
  • Not intended for applications where a spring-return safety state is required

Setup, Compatibility & Care

Ensure the valve is mounted to an ISO 5599-1 size 4 compliant sub-base to maintain seal integrity. When performing the through-hole mounting, verify that all bolts are tightened evenly to prevent gasket distortion. Because it operates on 24V DC, ensure your power supply can handle the inrush current of the solenoid coils. Periodically inspect the pneumatic connections for leaks and verify that the electrical connectors are free of oil or moisture contamination to prevent signal failure.

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