High PerformanceThe MFH-3-1/4-S-EX is designed to handle high flow rates, ensuring efficient operation in demanding automation applications. Its robust construction ensures consistent performance over time.
2
ReliabilityBuilt with Festo’s renowned quality, this solenoid valve is engineered to provide reliable operation. It is designed to meet all specifications, ensuring it functions as intended in various environments.
3
Electric ActuationThe MFH-3-1/4-S-EX is electrically actuated, providing precise control over valve operations. This makes it suitable for applications requiring precise timing and control.
4
Compact DesignWith a construction width of 30.5 mm, the MFH-3-1/4-S-EX is compact and versatile, making it easy to integrate into a wide range of automation systems.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Valve function
3/2, closed, monostable
Actuation type
Electrical
Width
30.5mm
Standard nominal flow rate
800l/min
Pneumatic working port
G1/4
Operating voltage
Via solenoid coil, to be ordered separately
5
Versatile ApplicationsThe MFH-3-1/4-S-EX is versatile and can be used in various automation tasks, from factory automation to process automation. Its wide range of applications makes it a valuable addition to any automation setup.
Operating pressure
-0.95bar 10bar
Structural design
Plate seat
Reset method
Mechanical spring
CE marking (see declaration of conformity)
as per EU explosion protection directive (ATEX)
Explosion protection certification outside the EU
EPL Db (GB) EPL Gb (GB)
UKCA marking (see declaration of conformity)
acc. to UK EX instructions
ATEX category gas
II 2G
ATEX category for dust
II 2D
Type of ignition protection for gas
Ex h IIC T4 Gb
Type of (ignition) protection for dust
Ex h IIIC T130°C Db
Explosive ambient temperature
-5°C <= Ta <= +40°C
Degree of protection
IP65
Nominal width
7mm
Width dimension
32mm
Exhaust air function
With flow control option
Sealing principle
Soft
Mounting position
Any
Manual override
Detenting
Type of control
Pilot-controlled
Pilot air supply port
External
Flow direction
Reversible
Symbol
00992879
Lap
Underlap
Pilot pressure MPa
0.1MPa 0.8MPa
Pilot pressure
1bar 8bar
Switching time off
29ms
On switching time
10ms
Max. positive test pulse with 0 signal
2200μs
Max. negative test pulse on 1 signal
3700μs
Coil characteristics
See solenoid coil, to be ordered separately
Explosion prevention and protection
Zone 1 (ATEX) Zone 1 (UKEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 21 (UKEX) Zone 22 (ATEX)
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
-5°C 40°C
Pilot medium
Compressed air as per ISO 8573-1:2010 [7:4:4]
Ambient temperature
-5°C 40°C
Product weight
320g
Electrical connection
Via F coil, to be ordered separately
Type of mounting
Optionally: On terminal strip With through-hole
Venting hole connection
M5
Pilot exhaust air port 82
M5
Pilot air port 12
M5
Pneumatic connection 1
G1/4
Pneumatic connection 2
G1/4
Pneumatic connection 3
G1/4
Note on materials
RoHS-compliant
Seals material
NBR
Housing material
Die-cast aluminum
Manufacturer ID
535901
Festo MFH-3-1/4-S-EX Electric Solenoid Valve - High Performance and Reliability | INDSLT
