MS4-EM1-1/4 – Shut Off Valve – Festo Shut Off Valves and Soft-Start Dump Valves

USD $ 272.16

SKU: Festo 541258

Manufacturer Part Number: Festo 541258
Festo Shut Off Valves and Soft-Start Dump Valves: MS4-EM1-1/4
OEM Spec Ref 

The Festo MS4-EM1-1/4, with MPN 541258, is an advanced shut-off and soft-start dump valve designed to enhance the control and safety of pneumatic systems. This valve is part of Festo’s MS series and is known for its reliable performance in various industrial settings.

Key Features:

  • Efficient Control and Safety: This valve facilitates safe and gradual pressure build-up when activating systems and ensures rapid decompression upon shutdown, enhancing both safety and reliability.
  • Durable Construction: Manufactured with an aluminium body, the MS4-EM1-1/4 is robust and resistant to corrosion, making it suitable for harsh industrial environments.
  • High Flow Capacity: With a maximum flow rate of 2200 L/min, it can handle high-power systems without compromise.
  • Temperature Versatility: Operates within a temperature range from -10°C to +60°C, accommodating various operational climates.
  • Ease of Use: Features a rotary knob for straightforward manual control, allowing quick adjustments between open and closed states. This user-friendly interface confirms the valve’s status at a glance.


  • Operational Efficiency: Optimizes air consumption and reduces energy costs by managing pressure efficiently.
  • Longevity and Reduced Maintenance: Protects the pneumatic components from wear and tear, thereby extending their service life and reducing maintenance needs.
  • Adaptable Installation: Its versatile design allows for mounting in any position, simplifying installation and integration into existing systems.


  • Process Control: Integral in systems requiring precise pressure adjustments.
  • Food and Beverage: Ensures compliance with industry standards and maintains system integrity.
  • Packaging Equipment: Delivers consistent performance crucial for packaging operations.
  • Assembly Lines: Enhances the reliability and efficiency of automated assembly processes.

The Festo MS4-EM1-1/4 stands out for its combination of performance, durability, and ease of use, making it an excellent choice for a wide range of industrial applications. It embodies Festo’s commitment to delivering high-quality pneumatic solutions.

Technical Data

Feature Specification
Structural Design Rotary gate valve
Actuation Type Manual
Exhaust Air Function Without flow control option
Type of Control Direct
Symbol 00991670
Valve Function 3/2, bistable
Operating Pressure 0 bar … 14 bar
C value 9 l/sbar
b-value 0.39
Standard Nominal Flow Rate 2200 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 … 50 °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
Product Weight 190 g
Pneumatic Connection 1 G1/4
Pneumatic Connection 2
Pneumatic Connection 3 G1/4
Seals material TPE-U(PU)
Housing material Die-cast aluminum
Weight 0.190 kg