MS6-EM1-1/2-R-SA – Shut off Valve – Festo Shut Off Valves and Soft-Start Dump Valves

USD $ 139.86

SKU: Festo 541279

Manufacturer Part Number: Festo 541279
Festo Shut Off Valves and Soft-Start Dump Valves: MS6-EM1-1/2-R-SA
OEM Spec Ref 

The Festo MS6-EM1-1/2-R-SA, with MPN 541279, is an advanced pneumatic shut-off and soft-start dump valve designed to enhance control and safety in pneumatic systems. Tailored for rigorous industrial demands, this valve ensures gradual pressure build-up and rapid decompression in systems, facilitating smoother startups and safer shutdowns.

Key Features:

  • Efficient Pressure Management: Allows for controlled pressure escalation, preventing sudden surges that can damage equipment.
  • Rapid Decompression Capability: Enables quick system depressurization, essential for emergency shutdowns and regular maintenance.
  • Durable Construction: Built to withstand the harsh environments of industrial applications, ensuring longevity and reliability.
  • Versatile Application: Ideal for a broad range of industries, including manufacturing, automotive, and automation.
  • Easy Integration: Designed for straightforward installation and compatibility with existing pneumatic systems.


  • Enhanced Safety: Minimizes risk of pneumatic accidents by managing pressure build-up and release.
  • Operational Efficiency: Reduces downtime and maintenance needs by protecting system integrity.
  • Energy Savings: Optimizes energy use by regulating pressure according to system demands.


  • Automated Production Lines: Critical for operations requiring precise pressure adjustments and safe handling of rapid start-stop cycles.
  • Safety-Critical Systems: Utilized in systems where safety and dependability are paramount.
  • General Pneumatics: Suitable for a wide range of pneumatic applications across various sectors, enhancing system stability and performance.

The Festo MS6-EM1-1/2-R-SA stands out as a robust and precise valve solution, representing Festo’s commitment to quality and innovation in pneumatic system components.

Technical Data

Feature Specification
Structural Design Rotary gate valve
Actuation Type Manual
Exhaust Air Function Without flow control option
Type of Control Direct
Valve Function 3/2, bistable
Operating Pressure 0 bar … 18 bar
Standard Nominal Flow Rate 3000 l/min … 8700 l/min
Operating Medium Compressed air as per ISO 8573-1:2010 [7:4:4], Inert gas
Information on Operating and Pilot Media Operation with oil lubrication possible (required for further use)
Corrosion Resistance Class (CRC) 2 – Moderate corrosion stress
Note on Materials RoHS-compliant
LABS (PWIS) Conformity VDMA24364-B1/B2-L
Temperature of Medium -10 °C … 60 °C
Ambient Temperature -10 °C … 60 °C
Certification c UL us – Recognized (OL)
CE marking (see declaration of conformity) as per EU explosion protection directive (ATEX)
UKCA marking (see declaration of conformity) acc. to UK EX instructions
Explosion protection certification outside the EU EPL Db (GB)
Explosion prevention and protection Zone 1 (ATEX)
Zone 1 (UKEX)
Zone 2 (ATEX)
Zone 21 (ATEX)
Zone 21 (UKEX)
Zone 22 (ATEX)
ATEX category gas II 2G
ATEX category for dust II 2D
Type of ignition protection for gas Ex h IIC T6 Gb X
Type of (ignition) protection for dust Ex h IIIC T60°C Db X
Explosive ambient temperature -10°C <= Ta <= +60°C
For Use in the Food Industry See supplementary material information
Type of Mounting Optionally:
Line installation
With accessories
Mounting Position Any
Flow Direction Non-reversible
Pneumatic Connection 3 G1/2
Seals material TPE-U(PU)
Housing material Die-cast aluminum