FestoClassic
In Stock

mfh-5/3g-3/8-s-b-ex

Product ID:9945
Updated: 2026/4/3
Festo mfh-5/3g-3/8-s-b-ex

Key Features

  • 1Ensure precise control with the 5/3 closed center function. 2、Deliver high flow rates up to 2200 L/min for demanding systems. 3、Integrate easily via electrical actuation with manual override. 4、Build durability with a corrosion-resistant die-cast aluminum body. 5、Mount flexibly on a PR rail or with through-holes.
Product Details
mfh-5/3g-3/8-s-b-ex
Festo

Technical Specifications

Detailed engineering parameters

ParameterValueParameterValue
Valve function
5/3, closed
Actuation type
Electrical
Width
40mm
Standard nominal flow rate
2200l/min
Pneumatic working port
G3/8
Operating pressure
-0.9bar 10bar
Structural design
Piston gate valve
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
12mm
Width dimension
41mm
Exhaust air function
With flow control option
Sealing principle
Soft
Mounting position
Any
Manual override
Non-detenting
Type of control
Pilot-controlled
Pilot air supply port
External
Flow direction
Reversible
Symbol
00991020
Lap
Overlap
Pilot pressure MPa
0.3MPa 1MPa
Pilot pressure
3bar 10bar
Max. switching frequency
3Hz
Switching time off
96ms
On switching time
20ms
Changeover time
54ms
Max. positive test pulse with 0 signal
2200μs
Max. negative test pulse on 1 signal
3700μs
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
-40°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
780g
Electrical connection
Via F coil, to be ordered separately
Type of mounting
With through-hole
Pilot exhaust air port 82
M5
Pilot exhaust air port 84
M5
Pilot air port 12
G1/8
Pilot air port 14
G1/8
Pneumatic connection 1
G3/8
Pneumatic connection 2
G3/8
Pneumatic connection 3
G3/8
Pneumatic connection 4
G3/8
Pneumatic connection 5
G3/8
Note on materials
RoHS-compliant
Seals material
NBR
Housing material
Die-cast aluminum
Manufacturer ID
535941

Specifications may be subject to change without notice