Product Model
mfh-3-1/4-s-ex
Key Features
- 1The MFH-3-1/4-S-EX solenoid valve offers 3/2-way, closed, monostable operation, providing precise control in various industrial automation applications.
- 2With a standard nominal flow rate of 800 l/min, this valve ensures efficient fluid management in your automation systems.
- 3The MFH-3-1/4-S-EX is certified for explosion protection in hazardous environments, meeting ATEX category II 2G and II 2D standards.
- 4The valve is designed with IP65 protection, ensuring it can withstand harsh industrial conditions and maintain its performance.
- 5The solenoid coil and socket are sold separately, allowing for customization to meet specific application requirements.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| 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 |
| 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 | G? | Pneumatic connection 3 | G1/4 |
| Note on materials | RoHS-compliant | Seals material | NBR |
| Housing material | Die-cast aluminum | Manufacturer ID | 535901 |
Specifications may be subject to change without notice