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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
12457
Air solenoid valve MDH-5/2-3/4-D-4-24DC
The Festo 12457 is an electrical 5/2-way monostable piston gate valve featuring a 76 mm width, an 18 mm nominal width, and a normal nominal flow rate of 6000 l/min normalized to DIN 1343. Operating at 24V DC within a pressure range of 3 bar to 16 bar, this piloted unit utilizes internal pilot air supply, an adjustable exhaust air function, a pneumatic spring reset, and a non-detenting manual override. It incorporates a soft sealing principle, an ISO 5599-1 size 4 sub-base and G3/4 pneumatic working port, an IP65 degree of protection, and conforms to ISO 5599-1 with an ISO code of 451 for any mounting position. 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
- 12457
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 12457.
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
- 76 mm
- Normal nominal ow rate (normalized to DIN 1343)
- 6000 l/min
- Pneumatic working port
- Sub-base, size 4 as per ISO 5599-1 | G3/4
- Operating voltage
- 24V DC
- Operating pressure
- 3 bar...16 bar
- Structural design
- Piston gate valve
- Reset method
- Pneumatic spring
- Degree of protection
- IP65
- Nominal width
- 18 mm
- Width dimension
- 82 mm
- Exhaust air function
- Adjustable
- Sealing principle
- Soft
- Mounting position
- Any
- Conforms to standard
- ISO 5599-1
- Manual override
- Non-detenting
- ISO code
- 451
- Type of control
- Piloted
- Pilot air supply port
- Internal
- Flow direction
- Non-reversible
- Lap
- Positive overlap
- Switching time off
- 160 ms
- On switching time
- 120 ms
- Duty cycle
- 100%
- Max. positive test pulse with 0 signal
- 4300 µs
- Max. negative test pulse on 1 signal
- 2100 µs
- Coil characteristics
- 24 V DC: 6.8 W | 48 V AC: 50/60 Hz, initial power 14.5 VA, holding power 9.9 VA
- 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)
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 12457. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.