Filter-Control valves LFR, LFRS
Classic
The Festo LFR and LFRS filter-control valves from the Classic range combine condensate filtration and pressure regulation in a single component. With 184 versions they form the largest range segment in Classic compressed air preparation: LFR for standard pressure regulation, LFRS for special applications. Suffix variants -5M (5 µm filter), -7 (7-bar version), -O (top-mounted drain), -DI (digital pressure display) allow application-specific configuration.
| Suffix combination | Meaning | Typical use |
|---|---|---|
| LFR-...-D-MINI/MIDI/MAXI | Standard, 5-bar, 40 µm, manual | General pneumatics |
| LFR-...-D-5M-... | 5 µm filter instead of 40 µm | Fine particle protection downstream |
| LFR-...-D-7-... | Outlet pressure up to 7 bar | High-pressure applications |
| LFR-...-D-DI-... | Digital pressure display | Precise pressure monitoring/setting |
| LFR-...-D-O-... | Top-mounted drain | Installation with housing facing down |
| ...-A (suffix) | Automatic condensate drain | Continuous operation |
Typical applications: Decentralised pressure supply to individual machine axes and consumers in automation and assembly plants, pressure regulation upstream of valve terminals and pneumatic cylinders, use in compressed air service units as a single component or combined with LOE lubricator to form complete maintenance units, and high-pressure applications (7-bar version) in presses and clamping systems.
