Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
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Festo
525178
Air solenoid valve MHP4-M1H-3/2G-1/4
The Festo 525178 is an electrical 3/2-way closed monostable industrial component featuring a pressure relief poppet valve design with a 4 mm nominal width and an 18 mm width. Operating at 24V DC, this direct-controlled valve delivers a normal nominal flow rate of 400 l/min across an operating pressure range of -0.09 MPa to 0.8 MPa. It includes an adjustable exhaust air function, a mechanical spring reset, soft sealing, a non-detenting manual override, and an IP65 degree of protection with c UL us recognition. Submit the exact part number, quantity, and application requirements to request a quote.
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Request a QuoteWhy no listed price?
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 525178
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 525178.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Valve function
- 3/2-way, closed, monostable
- Actuation type
- Electrical
- Width
- 18 mm
- Normal nominal ow rate (normalized to DIN 1343)
- 400 l/min
- Pneumatic working port
- G1/4
- Operating voltage
- 24V DC
- Operating pressure
- -0.09 MPa...0.8 MPa | -0.9 bar...8 bar | -13.05 psi...116 psi
- Structural design
- Pressure relief poppet valve
- Reset method
- Mechanical spring
- Degree of protection
- IP65
- Certication
- c UL us - recognized (OL)
- Nominal width
- 4 mm
- Width dimension
- 24 mm
- Note on grid dimension
- Minimum distance between the valves is 6 mm
- Exhaust air function
- Adjustable
- Sealing principle
- Soft
- Mounting position
- Any
- Manual override
- Non-detenting
- Type of control
- directly
- Flow direction
- Reversible with restrictions
- Lap
- Negative overlap
- Operating pressure, reversible
- -0.09 MPa...0.1 MPa | -0.9 bar...1 bar | -13.05 psi...14.5 psi
- Max. switching frequency
- 120 Hz
- Switching time off
- 5 ms
- On switching time
- 10.5 ms
- Duty cycle
- 100%
- Coil characteristics
- 24 V DC: 5.6 W
- Permissible voltage uctuations
- +/- 10%
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 525178. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.