Product Description
FESTO MS4-EM1-1/4 On/Off Valve
The FESTO MS4-EM1-1/4 (Material Number 541258) is a highly reliable, manually operated pneumatic on/off valve belonging to the versatile MS series. Engineered for optimal performance in compressed air preparation systems, this directional control valve is designed to safely pressurize and exhaust pneumatic circuits. It features a robust, compact construction capable of withstanding a maximum operating pressure of 14 bar (210 psi) and operating temperatures up to +60°C (+140°F). Manufactured in Hungary under Festo Germany’s strict quality standards, this Series P243 valve ensures exceptional durability, leak-free operation, and seamless integration into a wide variety of industrial automation applications.
Technical Specifications:
- Brand: FESTO
- Model: MS4-EM1-1/4
- Material Number (Mat. Nr.): 541258
- Product Type: Manual Pneumatic On/Off Valve (Einschaltventil)
- Pneumatic Connection: 1/4″
- Series: P243
- Maximum Operating Pressure (p1 max): 14 bar / 210 psi
- Maximum Operating Temperature (t max): +60°C / +140°F
- Country of Origin: Made in Hungary

FESTO MS4-EM1-1/4 On/Off Valve
Upgrade your pneumatic systems with the FESTO MS4-EM1-1/4 On/Off Valve (Part No. 541258). This premium manual control valve features a 1/4″ connection, handles up to 14 bar (210 psi) of pressure, and operates safely in environments up to +60°C. Ideal for reliable compressed air preparation and industrial automation.





