Festo Pneumatic Filter Regulator 105 Psi Max

Festo MS6-LFR-1/4-D6-ERV-AS Filter Regulator – 105 PSI, 40 µm, Auto Drain

The Festo MS6-LFR-1/4-D6-ERV-AS (Part # 529202) is a high-performance pneumatic filter regulator from Festo’s advanced MS6 series. Engineered to seamlessly prepare compressed air for industrial automation systems, this unit combines a directly actuated diaphragm regulator with a 40-micron particulate filter. Equipped with a standard G 1/4 threaded connection, it efficiently manages nominal flow rates of up to 2,800 L/min. This specific "D6" variant is configured for a pressure regulation range of 0.3 to 7 bar (approximately 105 PSI Max) and features a fully automatic condensate drain to minimize manual maintenance. Complete with a front-facing pressure gauge and a lockable rotary adjustment knob, the MS6-LFR is an essential, all-in-one air preparation unit that actively protects sensitive pneumatic actuators and valves from moisture, debris, and damaging pressure fluctuations.

Technical Performance and Design

• Combined Air Preparation: Merges precise pressure regulation with high-efficiency 40 µm mechanical filtration in a single, space-saving footprint (62 mm grid size).

• Fully Automatic Drain: The integrated "V" drain automatically purges accumulated water and compressor condensate from the bowl once it reaches a set volume, completely eliminating the need for manual daily bleed-offs.

• Secondary Venting (Relieving): The internal diaphragm is designed to automatically exhaust excess downstream pressure if it spikes above the set point, ensuring safe, stable, and accurate operation.

• Durable Construction: Features a rugged die-cast aluminum housing paired with a polycarbonate (PC) bowl and plastic bowl guard, offering excellent impact resistance and visibility of the fluid condensate level.

Product Specifications

• Catalog Number: MS6-LFR-1/4-D6-ERV-AS (Part # 529202)

• Port Size: G 1/4 (Pneumatic Connections 1 and 2)

• Filtration Grade: 40 µm (Micron)

• Regulation Range: 0.3 to 7 bar (~105 PSI Max)

• Maximum Inlet Pressure: 12 bar (174 PSI)

• Nominal Flow Rate: 2,800 L/min

• Drain Type: Fully Automatic Condensate Drain

Key Benefits & Applications

• Industrial Automation: The industry standard for supplying clean, pressure-regulated air to pneumatic cylinders, robotic grippers, and directional control valves in demanding manufacturing environments.

• Set-and-Forget Reliability: The combination of the lockable rotary knob (which prevents accidental pressure changes) and the auto-drain feature makes this a highly autonomous, low-maintenance unit.

• Modular MS6 System: Can be used as an independent, standalone filter regulator or seamlessly interlocked with other Festo MS6 components, such as lubricators and safety dump valves.

• Protects Downstream Equipment: Prevents costly downtime and premature wear on pneumatic seals by actively stripping abrasive rust, pipe scale, and liquid water out of the facility's air supply.

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