Festo
Festo MFH-3-1/4-24-NPT-EX 541658 electrician tool
A 3/2-way air solenoid valve with 24 V DC pilot control, 800 l/min flow and IP65 protection for pneumatic automation
- TypeTest Equipment
- Color/FinishRed
- Item Count1 pack
- Selling UnitBox
- Parts3 Years
- Labor1 Year
- Fast 12 ms on switching time for responsive control
- 29 ms off switching time ensures quick reset
- IP65 protection resists dust and water ingress
- 800 l/min nominal flow rate delivers high pneumatic capacity
- 6 W coil at 24 V DC provides energy-efficient operation
3/2 Solenoid Valve 24 V DC
This Festo MFH-3-1/4-24-NPT-EX is a 3/2-way, closed, monostable air solenoid valve actuated electrically at 24 V DC. It delivers a standard nominal flow rate of 800 l/min through a 1/4 NPT port with a nominal width of 5 mm. The pilot-controlled design uses a mechanical spring reset and offers a detenting manual override for setup and maintenance.
Suits Pneumatic Control Panels — Not
The valve fits automation systems needing IP65 protection, soft sealing and an operating pressure range of 1.5 bar to 8 bar with compressed air prepared to ISO 8573-1:2010 [7:4:4]. Lubricated operation is possible and required for continued use. Buyers needing higher corrosion resistance than CRC 1 or reversible flow direction should look at other valve series.
12 ms On / 29 ms Off Switching Times
The coil consumes 4.6 W at 24 V DC and switches on in 12 ms and off in 29 ms, defining the cycle speed for sequencing or safety circuits. Mounting position is unrestricted and the unit weighs 425 g. Confirm these response times match your control-loop requirements before specifying.
Highlights
- Fast 12 ms on switching time for responsive control
- 29 ms off switching time ensures quick reset
- IP65 protection resists dust and water ingress
- 800 l/min nominal flow rate delivers high pneumatic capacity
- 6 W coil at 24 V DC provides energy-efficient operation
Specifications
| Brand | FESTO |
|---|---|
| Model | MFH-3-1/4-24-NPT-EX 541658 |
| Type | Test Equipment |
| Color/Finish | Red |
| Item Count | 1 pack |
| Selling Unit | Box |
| Parts | 3 Years |
| Labor | 1 Year |
Questions about this item
How do I install the MFH-3-1/4-24-NPT-EX valve and what step is often missed?
Mount the valve in any orientation using the 73 mm width as a guide, connect compressed air to the 1/4 NPT ports, and wire the 24V DC coil. The step often missed is verifying the pilot pressure reaches at least 1.5 bar before first energising the solenoid.
What maintenance or replacement will the MFH-3-1/4-24-NPT-EX need later?
The soft-sealing principle and ISO 8573-1:2010 [7:4:4] air quality requirement mean you must maintain filtration and, if lubrication is introduced, continue it for the valve's life. Seals and the mechanical spring reset are the wear items; plan inspection at the 3-year parts interval.
What limit appears first during sustained cycling of the MFH-3-1/4-24-NPT-EX?
Continuous operation at the 4.6 W coil rating and 800 l/min flow can raise internal temperature toward the 40 °C ambient ceiling. The IP65 housing limits heat dissipation, so coil thermal rise becomes the practical duty-cycle limit before pressure or switching-time degradation occurs.
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