5/3-way mid-position pressurized electrically-actuated solenoid valve with non-detenting manual override and internal pilot air, suitable for safety-related applications.
Product Modelmfh-5/3b-1/4-b-ex
Material Number535949
Product ID10453
Stock on Request
Last updated: 8/29/2026
Key Features
1
Reliable Safety PerformanceThe MFH-5/3B-1/4-B-EX solenoid valve is a well-tried product for safety-related applications, meeting the standards of ISO 13849-1. Its reliability ensures safe operation in critical environments.
2
5/3-Way Mid-Position DesignThis valve offers a versatile 5/3-way mid-position pressurized design, allowing for precise control over pneumatic systems. Its mid-position functionality enhances flexibility in various industrial applications.
3
Electrically ActuatedThe valve is electrically actuated, providing quick and precise control over pneumatic flows. This feature is particularly useful in high-speed automation processes where rapid response times are crucial.
4
Non-Detenting Manual OverrideThe MFH-5/3B-1/4-B-EX features a non-detenting manual override, ensuring that the valve can be easily operated manually even when the electrical power is off. This is essential for emergency shutdowns or maintenance procedures.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Valve function
5/3, pressurized
Actuation type
Electrical
Width
32mm
Standard nominal flow rate
1600l/min
Pneumatic working port
G1/4
Operating pressure
3bar 10bar
5
Internal Pilot AirThe valve includes an internal pilot air system, which enhances its functionality by allowing for more complex control sequences. This feature is particularly beneficial in applications requiring intricate pneumatic logic.
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
10mm
Width dimension
33mm
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
Internal
Flow direction
Non-reversible
Symbol
00991034
Lap
Overlap
b-value
0.38
C value
6.35l/sbar
Max. switching frequency
3Hz
Switching time off
23ms
On switching time
22ms
Changeover time
35ms
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
-10°C 60°C
Ambient temperature
-5°C 40°C
Product weight
500g
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
G1/4
Pneumatic connection 2
G1/4
Pneumatic connection 3
G1/4
Pneumatic connection 4
G1/4
Pneumatic connection 5
G1/4
Note on materials
RoHS-compliant
Seals material
NBR
Housing material
Die-cast aluminum
Manufacturer ID
535949
Festo MFH-5/3B-1/4-B-EX Solenoid Valve - Reliable Pneumatic Control | INDSLT
