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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
33181
Air solenoid valve MFH-5-3/8-L-S-B
The Festo 33181 is a monostable 5/2-way electrical industrial component featuring a piston gate valve structural design with a 40 mm width, 12 mm nominal width, and soft sealing principle. It delivers a normal nominal flow rate of 2000 l/min through G3/8 pneumatic working ports, supporting an operating pressure range of -0.09 MPa to 1 MPa (-0.9 bar to 10 bar) and an external pilot air supply port with pilot pressures between 0.2 MPa and 1 MPa (2 bar to 10 bar). Additional attributes include a pneumatic spring reset method, adjustable exhaust air function, non-detenting manual override, positive overlap lap, reversible flow direction, and any mounting position. Submit the exact part number, quantity, and application requirements for a formal quotation.
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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
- 33181
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 33181.
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
- 5/2-way, monostable
- Actuation type
- Electrical
- Width
- 40 mm
- Normal nominal ow rate (normalized to DIN 1343)
- 2000 l/min
- Pneumatic working port
- G3/8
- Operating pressure
- -0.09 MPa...1 MPa | -0.9 bar...10 bar
- Structural design
- Piston gate valve
- Reset method
- Pneumatic spring
- Nominal width
- 12 mm
- Width dimension
- 41 mm
- Exhaust air function
- Adjustable
- Sealing principle
- Soft
- Mounting position
- Any
- Manual override
- Non-detenting
- Type of control
- Piloted
- Pilot air supply port
- External
- Flow direction
- Reversible
- Lap
- Positive overlap
- Pilot pressure MPa
- 0.2 MPa...1 MPa
- Pilot pressure
- 2 bar...10 bar
- Max. switching frequency
- 3 Hz
- Switching time off
- 65 ms
- On switching time
- 27 ms
- Max. positive test pulse with 0 signal
- 2200 µs
- Max. negative test pulse on 1 signal
- 3700 µs
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:4:4]
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 1 - Low corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Storage temperature
- -40 °C...60 °C
- Temperature of medium
- -10 °C...60 °C
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 33181. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.