Product Model
mfh-5/3b-1/4-b-ex
Selling Points
- 1The Festo MFH-5/3B-1/4-B-EX is a 5/3-way mid-position pressurized electrically-actuated single solenoid pneumatic piloted control valve designed for precise control in industrial applications.
- 2This valve features a non-detenting manual override, ensuring reliable operation even in the absence of electrical power.
- 3The internal pilot air system enhances the valve's functionality and stability, making it suitable for demanding industrial environments.
- 4With its electric actuation, the MFH-5/3B-1/4-B-EX offers quick and precise control, reducing downtime and improving overall efficiency.
- 5The valve is part of Festo's comprehensive range of pneumatic components, ensuring compatibility and integration with other Festo products for seamless automation solutions.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| 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 |
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 | G? | 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 |
Specifications may be subject to change without notice