Description
Festo MFH-3-1/4-S Solenoid Valve, 0.95~10 Bar
Valve function 3/2-way, closed, monostable
Type of actuation Electric
Construction width 30.5 mm
Standard nominal flow rate 800 l/min
pneumatic working port G1/4
Operating voltage Via solenoid coil, to be ordered separately
Operating pressure -0.095 MPa … 1 MPa
Operating pressure -0.95 bar … 10 bar
Design Poppet seat
Type of reset Mechanical spring
Approval c UL us – Recognized (OL)
Degree of protection IP65
Nominal size 7 mm
Grid dimension 32 mm
Short type code MFH
Exhaust-air function With flow control option
Sealing principle Soft
Mounting position optional
Manual override Detenting
Type of piloting Pilot actuated
Pilot air supply External
Flow direction Reversible
Symbol 00992879
lap Underlap
Pilot pressure 0.1 MPa … 0.8 MPa
Pilot pressure 1 bar … 8 bar
Switching time off 29 ms
Switching time on 10 ms
Max. positive test pulse with 0 signal 2200 µs
Max. negative test pulse with 1 signal 3700 µs
Characteristic coil data See solenoid coil, to be ordered separately
Operating medium Compressed air to ISO 8573-1:2010 [7:4:4]
Note on operating and pilot medium Lubricated operation possible (in which case lubricated operation will
always be required)
Corrosion resistance class CRC 1 – Low corrosion stress
Storage temperature -20 °C … 60 °C
8/27/21 – Subject to change – Festo AG & Co. KG 1/2
Feature Value
Media temperature -10 °C … 60 °C
Pilot medium Compressed air to ISO 8573-1:2010 [7:4:4]
Ambient temperature -5 °C … 40 °C
Product weight 320 g
Electrical connection Via F coil, to be ordered separately
Type of mounting Either:
On manifold rail
With through-hole
Pilot exhaust port 82 M5
Pilot air port 12 M5
Pneumatic connection, port 1 G1/4
Pneumatic connection, port 2 G1/4
Pneumatic connection, port 3 G1/4
Note on materials RoHS-compliant
Material seals NBR
Material housing Die-cast aluminium
