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Festo
525181
Solenoid valve MHP4-MS1H-3/2G-1/4-K
The Festo 525181 is a 3/2 closed, monostable industrial component featuring an 18 mm width, a 24 mm grid dimension, and a 4 mm nominal size with direct electrical actuation. This pressure-relieved poppet valve delivers a standard nominal flow rate of 400 l/min across a working pressure range of -0.9 to 8 bar, utilizing a mechanical spring reset, soft sealing principle, and throttleable exhaust-air function. Rated to IP65 protection class with c UL us recognition, the unit includes a pushing manual override, supports any assembly position, and achieves a maximum switching frequency of 210 Hz with a 3.5 ms off switching time. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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Request a Quote- Manufacturer
- Festo
- Part number
- 525181
- Data verification
- Manufacturer evidence reviewed
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Exact part-number verificationTechnical properties are matched to 525181.
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Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Valve function
- 3/2 closed, monostable
- Type of actuation
- electrical
- Width
- 18 mm
- Standard nominal flow rate
- 400 l/min
- Working pressure
- -0.9 ... 8 bar
- Design structure
- Pressure-relieved poppet valve
- Type of reset
- mechanical spring
- Protection class
- IP65
- Authorization
- c UL us - Recognized (OL)
- Nominal size
- 4 mm
- Grid dimension
- 24 mm
- Exhaust-air function
- throttleable
- Sealing principle
- soft
- Assembly position
- Any
- Manual override
- Pushing
- Type of piloting
- direct
- Flow direction
- reversible with restrictions
- Working pressure, reversible
- -0.9 ... 0 bar
- Maximum switching frequency
- 210 Hz
- Switching time off
- 3.5 ms
- Switching time on
- 3.5 ms
- Tolerance for Switching time OFF
- +10%/-40%
- Tolerance for Switching time ON
- +10%/-30%
- Measuring of the switching time at 1 Hz and above
- 0.3 ms
- Duty cycle
- 100%
- Characteristic coil data
- 24 V DC: low current phase: 2.125 W, high current phase: 8.5 W
- Permissible voltage fluctuation
- +/- 10 %
- Operating medium
- Filtered, unlubricated compressed air, 40 µm filtration | Filtered, lubricated compressed air, 40 µm filtration
- CE symbol (see declaration of conformity)
- according to EU-EMV guideline
- Corrosion resistance classification CRC
- 2
- Medium temperature
- -5 ... 40 °C
- Ambient temperature
- -5 ... 40 °C
- Product weight
- 270 g
- Electrical connection
- Cable
- Cable length
- 2.5 m
- Mounting type
- On PR manifold
- Pneumatic connection, port
- 3 Subbase
- Materials note
- Free of copper and PTFE
- Materials information for seals
- HNBR | NBR
- Materials information, housing
- Zinc die-casting | coated
- Materials information, cable sheaths
- PUR
- Screw material data
- Steel | Galvanized
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 525181. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.