Product Overview
The FESTO MS6-LFR-1/2-D7-E-U-M-AD1-AS (Part No. 526490) is a high-precision service unit combination from the FESTO MS6 series, integrating a filter regulator with a pressure gauge and manual shut-off valve functionality. Designed for compressed air preparation in demanding industrial environments, this unit conditions pneumatic media by removing particulate contamination and condensate while maintaining a stable, adjustable downstream working pressure. The 1/2-inch connection size and modular MS6 platform allow direct integration into existing FESTO air preparation systems, ensuring reliable actuator performance, extended component service life, and consistent process repeatability across a wide range of automated machinery.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Pneumatic Filter Regulator (Service Unit Combination) |
| Model Designation | MS6-LFR-1/2-D7-E-U-M-AD1-AS / 526490 |
| Series / Platform | FESTO MS6 Modular Service Unit Series |
| Port Connection | G1/2 (1/2 inch) threaded ports |
| Operating Pressure | Standard Industrial Grade (up to 16 bar inlet, regulated output range per D7 regulator) |
| Filtration Rating | Standard 40 µm filter element (condensate separation with manual drain) |
| Pressure Regulation | Diaphragm-type regulator with secondary venting, lockable adjusting knob |
| Mounting & Connection | Modular MS6 mounting interface, wall or bracket mount compatible |
| Media | Compressed air (filtered, lubricated or non-lubricated) |
Engineering Features & Advantages
- Precision Pressure Regulation: The D7 diaphragm regulator delivers highly stable downstream pressure with minimal hysteresis and fast response to load fluctuations, protecting sensitive pneumatic actuators and valves.
- Integrated Filtration & Condensate Management: High-efficiency filter element captures solid particulates and coalesced moisture, with a manual drain for reliable condensate removal and clean air delivery.
- Modular MS6 Design: Tool-free modular connection enables rapid assembly, expansion, and service within FESTO MS6 air preparation systems, reducing installation and maintenance downtime.
- Industrial Reliability: Robust housing and diaphragm construction engineered for continuous operation under severe industrial conditions, ensuring long service intervals.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original FESTO OEM specifications, guaranteeing drop-in replacement without system modification.
Typical Industrial Applications
This FES
PRODUCT IMAGES

FESTO MS6-LFR-1/2-D7-E-U-M-AD1-AS / 526490 Pneumatic Filter Regulator
⚡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine FESTO MS6-LFR-1/2-D7-E-U-M-AD1-AS / 526490 Service Unit. This German-made pneumatic component features a filter regulator with pressure gauge, delivering precise air preparation and reliable performance for industrial automation systems.