The Festo MSB4 Air Preparation Combination Unit is a versatile solution for compressed air systems, providing filtration, pressure regulation, and lubrication in a compact design.
Product Modelmsb4
Material Number531029
Product ID9821
Stock on Request
Last updated: 8/29/2026
Key Features
1
Reliable FiltrationThe MSB4 features a 40 μm filtration grade, ensuring clean and reliable compressed air for your applications.
2
Efficient Pressure RegulationWith a pressure regulation range of 1 to 12 bar, the MSB4 provides consistent output pressure, meeting the demands of various industrial processes.
3
Integrated LubricationThe unit includes a lubricator, which ensures smooth operation and extends the lifespan of your pneumatic components.
4
Compact DesignDesigned to minimize space requirements, the MSB4 is perfect for applications where space is limited, yet performance is crucial.
5
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Size
4
Series
MS
Actuation type
Electrical Manual Pneumatic
Actuator lock
Rotary knob with integrated lock
Mounting position
Any Vertical +/- 5°
Grade of filtration
0.01μm 40μm
Versatile Mounting OptionsThe MSB4 can be mounted vertically or at an angle of ±5°, offering flexibility in installation and integration with existing systems.
Condensate drain
Fully automatic Manually rotating Semi-automatic
Structural design
Branching module Active carbon filter Pressure regulator with pressure gauge Soft start valve Shut off valve Fiber filter Filter regulator with pressure gauge Filter regulator without pressure gauge Membrane dryer Proportional standard oil mist lubricator Sinter filter with centrifugal separator with non-return function
Controller function
Outlet pressure constant With primary pressure compensation With secondary exhausting With return flow function
Bowl guard
Plastic bowl guard
Symbol
00991761
Differential pressure display
Visual display With pressure sensor
Pressure gauge
with pressure sensor with pressure gauge
Operating pressure
1.5bar 14bar
Pressure regulation range
1bar 12bar
Standard nominal flow rate
800l/min 1400l/min
Coil characteristics
110 V AC: 50/60 Hz, initial power 3.0 VA, holding power 2.4 VA 230 V AC: 50/60 Hz, initial power 3.0 VA, holding power 2.4 VA 24 V DC: 1.5 W 24 V DC: 1.8 W
Certification
c UL us - Recognized (OL)
CE marking (see declaration of conformity)
As per EU EMC directive as per EU explosion protection directive (ATEX) As per EU low voltage directive As per EU RoHS directive
UKCA marking (see declaration of conformity)
To UK instructions for EMC acc. to UK EX instructions To UK RoHS instructions To UK instructions for electrical equipment
Explosion protection certification outside the EU
EPL Db (GB) EPL Dc (GB) EPL Gb (GB) EPL Gc (GB)
Explosion prevention and protection
Zone 1 (ATEX) Zone 1 (UKEX) Zone 2 (ATEX) Zone 2 (UKEX) Zone 21 (ATEX) Zone 21 (UKEX) Zone 22 (ATEX) Zone 22 (UKEX)
ATEX category gas
II 2G II 3G
ATEX category for dust
II 2D II 3D
Type of ignition protection for gas
Ex h IIC T6 Gb X Ex nA IIC T4 X Gc
Type of (ignition) protection for dust
Ex h IIIC T60°C Db X Ex tc IIIC T105°C IP65 Dc X
Information on operating and pilot media
Operation with oil lubrication possible (required for further use)
