Original price was: $ 154.79.$ 115.23Current price is: $ 115.23.
Compact Festo MSB4 air prep unit with filter, regulator, and lubricator. ATEX certified, 1.5–14 bar, 800–1400 l/min, ideal for industrial automation.
Precision Air Preparation for Demanding Industrial Applications
The Festo MSB4 is a compact, integrated air preparation combination unit designed to deliver clean, regulated, and safe compressed air in automation systems. Engineered for efficiency and flexibility, it combines filtering, regulation, lubrication, and shut-off functions into a modular system. Whether operating in general factory environments or hazardous ATEX-certified zones, the MSB4 enhances pneumatic system reliability, minimizes maintenance, and ensures compliance with global safety standards.
The MSB4 streamlines air preparation with an all-in-one solution. It integrates components like:
Pressure regulator with gauge
Active carbon filter
Soft-start valve
On/off valve
Membrane dryer
Oil mist lubricator
This combination eliminates the need for separate installations, reducing space requirements and simplifying system design.
Built for adaptability, the MSB4 supports electrical, manual, and pneumatic actuation with a rotary knob actuator lock. It performs flawlessly across vertical orientations (±5°) and is resistant to moderate corrosion (CRC 2). Its wide operating pressure range of 1.5–14 bar and temperature tolerance from -10°C to 60°C make it suitable for a wide array of industrial environments.
With a filtration range from 0.01 µm to 40 µm, the MSB4 removes fine particles, oils, and moisture to protect sensitive pneumatic components. It supports multiple condensate drain options (manual, semi-auto, and fully automatic) for easy maintenance.
The MSB4 complies with:
CE, UKCA, and RoHS directives
ATEX and UKEX certifications for use in Zones 1, 2, 21, and 22
Multiple Explosion Protection Levels (EPL) for gas and dust
This ensures safe and legal operation in explosive or regulated environments.
Nominal flow rate: 800 – 1400 l/min
Pressure regulation: 1 – 12 bar
Materials: Die-cast aluminum housing, polycarbonate bowl
Pneumatic connections: G1/8 and G1/4 threading for broad compatibility
Manufacturer Part Number: Festo 531029 #03
Festo Compressed Air Service Unit: MSB4-AGB:F3:D8-WP-Z
Download SB4-AGB:F3:D8-WP-Z Datasheet
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MS4-LFM-A – Active carbon filter for advanced air purification
MS4-BEL – Lubricator module for consistent oil mist delivery
MS4-EM1-24DC – Electrical on/off valve, 24 V DC for remote actuation
MS4-SV-24DC – Soft-start valve for safe pressure ramp-up
MS4-DL – Condensate drain unit (manual/auto options)
MS6-LFR-1/2-D7-E-R-V24 – Higher flow unit with electronic pressure regulation
MSB6-AGB-F8-D8-WP-Z – Larger MSB6 series with integrated membrane dryer
MS9-LFR-G-D6-R-VB – High-capacity filter regulator combo for heavy-duty lines
MS4-FRM-U10-D-MAXI – Compact filter-regulator-lubricator in one housing
D-MAXI-1/4-SET – Complete air prep set with bracket, bowl guard, and accessories
Contact our expert team for volume pricing, application support, or to get help integrating this sensor into your automation system.
