Festo MFH-3-1/4-S-EX Air solenoid valve 535901
• Valve function3/2, closed, monostable
• Actuation typeElectrical
• Width30.5 mm
• Standard nominal flow rate800 l/min
• Pneumatic working portG1/4
• Operating voltageVia solenoid coil, to be ordered separately
• Operating pressure-0.095 MPa ... 1 MPa
• Operating pressure-0.95 bar ... 10 bar
• Structural designPlate seat
• Reset methodMechanical spring
• CE marking (see declaration of conformity)as per EU explosion protection directive (ATEX)
• Explosion protection certification outside the EUEPL Db (GB) EPL Gb (GB)
• UKCA marking (see declaration of conformity)acc. to UK EX instructions
• ATEX category gasII 2G
• ATEX category for dustII 2D
• Type of ignition protection for gasEx h IIC T4 Gb
• Type of (ignition) protection for dustEx h IIIC T130°C Db
• Explosive ambient temperature-5°C <= Ta <= +40°C
• Degree of protectionIP65
• Nominal width7 mm
• Width dimension32 mm
• Exhaust air functionWith flow control option
• Sealing principleSoft
• Mounting positionAny
• Manual overrideDetenting
• Type of controlPilot-controlled
• Pilot air supply portExternal
• Flow directionReversible
• Symbol00992879
• LapUnderlap
• Pilot pressure MPa0.1 MPa ... 0.8 MPa
• Pilot pressure1 bar ... 8 bar
• Switching time off29 ms
• On switching time10 ms
• Max. positive test pulse with 0 signal2200 µs
• Max. negative test pulse on 1 signal3700 µs
• Coil characteristicsSee solenoid coil, to be ordered separately
• Explosion prevention and protectionZone 1 (ATEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 22 (ATEX)
• Operating mediumCompressed air as per ISO 8573-1:2010 [7:4:4]
• Information on operating and pilot mediaOperation with oil lubrication possible (required for further use)
• Corrosion resistance class (CRC)1 - Low corrosion stress
• Storage temperature-20 °C ... 60 °C
• Temperature of medium-5 °C ... 40 °C
• Pilot mediumCompressed air as per ISO 8573-1:2010 [7:4:4]
• Ambient temperature-5 °C ... 40 °C
• Product weight320 g
• Electrical connectionVia F coil, to be ordered separately
• Type of mountingOn terminal strip With through-hole Optionally:
• Venting hole connectionM5
• Pilot exhaust air port 82M5
• Pilot air port 12M5
• Pneumatic connection 1G1/4
• Pneumatic connection 2G¼
• Pneumatic connection 3G1/4
• Note on materialsRoHS-compliant
• Seals materialNBR
• Housing materialDie-cast aluminum
Similar model numbers:
MFH-3-1/4-S-EX
MFH-3-1/4-EX
MFH-3-1/4
MFH-3-1/4-S
MFH-3-1/4-24-EX
MFH-3-1/4-120-EX
MFH-3-1/4-120-NPT-EX
MFH-3-1/4-NPT
MFH-3-1/4-S-NPT
MFH-3-1/4-24-NPT-EX
Any questions, feel free to contact us
jeff@hkxytech.com jeff@whxyauto.com +86-15072331761
