Product Model
ms4-lfr

Key Features
- 1The Festo MS4-LFR filter regulator is designed to remove contaminants from compressed air down to a particle size of 40μm, ensuring clean and reliable air supply for industrial applications.
- 2This filter regulator features an automatic drain option, which enhances efficiency by automatically removing condensate, reducing downtime and maintenance.
- 3The MS4-LFR series offers a high flow rate and integrated return flow for exhausting air from port 2 to port 1, making it suitable for various pneumatic systems.
- 4The product is available with G 1/4 ports, providing flexibility in system design and integration with other pneumatic components.
- 5The Festo MS4-LFR filter regulator operates within a wide temperature range of -10°C to +60°C, ensuring it can handle diverse environmental conditions in industrial settings.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Size | 4 | Series | MS |
| Actuator lock | Rotary knob with detent Rotary knob with integrated lock can be closed with accessories | Mounting position | Vertical +/- 5° |
| Grade of filtration | 5μm 40μm | Condensate drain | Fully automatic Manual, non-detenting Manually rotating Semi-automatic |
| Structural design | Filter regulator with pressure gauge Filter regulator without pressure gauge | Controller function | Outlet pressure constant With secondary exhausting With return flow function |
| Bowl guard | Plastic bowl guard Integrated as metal bowl guard | Degree of condensate separation | 75% |
| Pressure gauge | G1/4 prepared G1/8 prepared with pressure sensor with pressure gauge | Operating pressure | 0.8bar 14bar |
| Pressure regulation range | 0.3bar 12bar | Max. pressure hysteresis | 0.25bar |
| Standard nominal flow rate | 850l/min 1800l/min | Certification | c UL us - Recognized (OL) |
| CE marking (see declaration of conformity) | as per EU explosion protection directive (ATEX) | UKCA marking (see declaration of conformity) | acc. to UK EX instructions |
| Explosion protection certification outside the EU | EPL Db (GB) EPL Gb (GB) | Explosion prevention and protection | Zone 1 (ATEX) Zone 1 (UKEX) Zone 2 (ATEX) Zone 21 (ATEX) Zone 21 (UKEX) Zone 22 (ATEX) |
| ATEX category gas | II 2G | ATEX category for dust | II 2D |
| Type of ignition protection for gas | Ex h IIC T6 Gb X | Type of (ignition) protection for dust | Ex h IIIC T60°C Db X |
| Explosive ambient temperature | -10°C <= Ta <= +60°C | Operating medium | Compressed air as per ISO 8573-1:2010 [-:4:-] Compressed air as per ISO 8573-1:2010 [7:4:-] Inert gas |
| Corrosion resistance class (CRC) | 2 - Moderate corrosion stress | LABS (PWIS) conformity | VDMA24364-B1/B2-L |
| Storage temperature | -10°C 60°C | For use in the food industry | See supplementary material information |
| Temperature of medium | -10°C 60°C | Ambient temperature | -10°C 60°C |
| Type of mounting | Optionally: Front panel mounting Line installation With accessories | Note on materials | RoHS-compliant |
| Material of sub-base | Die-cast aluminum | Seals material | NBR |
| Compressed air filter material | PE | Housing material | Die-cast aluminum |
| Diaphragm material | NBR | Separating disc material | POM |
| Manufacturer ID | 526489 |
Specifications may be subject to change without notice
