Manufacturer Part Number: Festo 9857
Festo Directional Control Valves: MFH-3-1/2
OEM Spec Ref 

The Festo MFH-3-1/2, with MPN 9857, is a high-performance solenoid valve, meticulously designed for efficient and reliable directional control in various industrial applications. This valve ensures precise flow management and robust performance under various operating conditions.

Key Features:

  • Versatile Functionality: Offers a 3/2 closed, monostable valve function, suitable for a wide range of applications.
  • Durable and Reliable: Features robust construction with aluminum die-casting housing and NBR seals, ensuring long-term reliability and performance.
  • Optimal Control: Equipped with pilot-operated control and capable of operating with pressures from 1.5 to 8 bar, it provides precise flow management.
  • Environmental Adaptability: Operates effectively within a temperature range from -20 to 60°C, making it suitable for various environmental conditions.

Benefits:

  • Enhanced Operational Efficiency: By ensuring precise flow direction and control, it enhances the overall efficiency and reliability of pneumatic systems.
  • Cost-Effective Operation: Optimizes energy usage and reduces operational costs through efficient performance.
  • Extended Equipment Life: Prevents wear and tear on connected components, thereby extending their lifespan.

Applications:

  • Industrial Automation: Ideal for use in automated manufacturing lines, control systems, and general pneumatics, where reliable and efficient control of air flow is critical.

The Festo MFH-3-1/2 stands out as a testament to Festo’s commitment to innovation and quality in pneumatic solutions, offering a robust and versatile valve option for diverse industrial needs.

Technical Data

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Feature Specification
Valve function 3/2, closed, monostable
Actuation type Electrical
Width 52 mm
Standard nominal flow rate 3700 l/min
Pneumatic working port G1/2
Operating voltage Via solenoid coil, to be ordered separately
Operating pressure 0.15 MPa … 0.8 MPa
1.5 bar … 8 bar
Structural design Plate seat
Reset method Mechanical spring
Certification c UL us – Recognized (OL)
Degree of protection IP65
Nominal width 14 mm
Width dimension 69 mm
Exhaust air function With flow control option
Sealing principle Soft
Mounting position Any
Manual override Detenting
Type of control Pilot-controlled
Flow direction Non-reversible
Symbol 00991041
Lap Underlap
b-value 0.3
Switching time off 90 ms
On switching time 18 ms
Max. positive test pulse with 0 signal 2200 µs
Max. negative test pulse on 1 signal 3700 µs
Coil characteristics See solenoid coil, to be ordered separately
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 -20 °C … 60 °C
Temperature of medium -10 °C … 60 °C
Ambient temperature -5 °C … 40 °C
Product weight 1100 g
Electrical connection Via F coil, to be ordered separately
Type of mounting Optionally:
On terminal strip
With through-hole
Pilot exhaust air port 82 M5
Pneumatic connection 1 G1/2
Pneumatic connection 2 G1/2
Pneumatic connection 3 G1/2
Note on materials RoHS-compliant
Seals material NBR
Housing material Die-cast aluminum

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Weight 1.11 kg