MS6-EM1-1-2-S Festo On Off Valve

USD 52.00

On/off valve featuring a service-life value of 0.025 million cycles and overlap design. Includes severity level 2 vibration and shock resistance.

Manually operated on/off valves MS-EM

MS6-EM1-1/2-S Festo On/off valve

Model Identifier MS6-EM1-1/2-S
Official Part Number 541268
GTIN Standard 4052568007218

Technical Overview

The Festo MS6-EM1-1/2-S is a manually operated 3/2 bistable on/off valve designed for pneumatic air preparation systems. Built with a robust die-cast aluminum housing and TPE-U(PU) seals, it features a rotary gate valve design and a direct piloting system. It supports a wide operating pressure range from 0 to 18 bar and delivers a high standard nominal flow rate of 8700 l/min, making it suitable for demanding industrial applications requiring reliable shut-off functionality.

Key Features

  • Manual actuation for direct control
  • 3/2 bistable valve function
  • Rotary gate valve design
  • Integrated silencer for non-ducted exhaust at port 3
  • Optional mounting position for installation flexibility
  • RoHS-compliant construction
  • Suitable for compressed air and inert gases
  • Corrosion resistance class CRC 2 for moderate corrosion stress

High standard nominal flow rate of 8700 l/min standardized to DIN 1343

Technical Specification Matrix

ParameterValue
DesignRotary gate valve
Type of actuationManual
Exhaust-air functionWithout flow control option
Type of pilotingDirect
Symbol00991670
Valve function3/2 bistable
Operating pressure0 bar ... 18 bar
C value30.8 l/sbar
b value0.57
Standard nominal flow rate (standardised to DIN 1343)8700 l/min
Operating mediumCompressed air to ISO 8573-1:2010 [7:4:4] Inert gases
Note on operating and pilot mediumLubricated operation possible (in which case lubricated operation will always be required)
Corrosion resistance class CRC2 - Moderate corrosion stress
Note on materialsRoHS-compliant
LABS (PWIS) conformityVDMA24364-B1/B2-L
Media temperature-10 °C ... 60 °C
Ambient temperature-10 °C ... 60 °C
Suitable for use with foodSee supplementary material information
Type of mountingEither: In-line installation With accessories
Mounting positionoptional
Flow directionNon-reversible
Product weight655 g
Pneumatic connection, port 1G1/2
Pneumatic connection, port 2G1/2
Pneumatic connection, port 3Integrated silencer Not ducted
Material sealsTPE-U(PU)
Material housingDie-cast aluminium

Industrial Applications

1. Main Pneumatic Isolation for Automated Packaging Lines

Used as a primary manual shut-off valve at the air preparation stage of high-speed automated packaging machinery to securely cut off supply and vent downstream air during routine servicing or maintenance.

Problem Solved

Ensures safe Lockout/Tagout (LOTO) procedures by safely exhausting downstream pressure via an integrated silencer, preventing accidental actuation of cylinders while satisfying high machine air demands without starvation.

8700 l/min nominal flow rate3/2 bistable valve functionIntegrated silencerManual rotary gate valve

2. Sectional Depressurization in Automotive Assembly Jigs

Deployed to manually isolate and vent specific pneumatic clamping zones within heavy-duty automotive welding and assembly stations without affecting the main facility supply line.

Problem Solved

Allows operators to safely swap tooling or perform localized maintenance. The rugged die-cast aluminum housing and CRC 2 rating protect against harsh factory wear, while the G1/2 port effectively feeds localized high-demand clamping manifolds.

G1/2 pneumatic connectionDie-cast aluminium housingCorrosion resistance class CRC 2-10 °C ... 60 °C ambient temperature

3. Branch Line Isolation for Compressed Air Ring Mains

Acts as a manual branch isolation valve within industrial compressed air distribution networks, allowing facility managers to shut off inert gas or compressed air flow to specific production halls or machine groups.

Problem Solved

Prevents complete facility downtime by enabling localized shut-offs for leak repairs or pipe routing. The robust 18 bar maximum pressure rating safely handles high-pressure main lines, minimizing pressure drops across the distribution branch.

Operating pressure 0 bar ... 18 barInert gases compatibilityDirect piloting typeC value 30.8 l/sbar

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