Mark Safety Appliances

The Red Valve Lockout is a vital safety device designed to prevent unauthorized access to valve controls during maintenance or repair work. Made from durable, high-visibility red thermoplastic or metal, it resists corrosion, extreme temperatures, and harsh industrial environments. This lockout device fits securely over valve handles, effectively immobilizing them and ensuring the valve remains in the desired position—either open or closed. Compatible with padlocks and lockout tags, it forms a key part of lockout/tagout (LOTO) procedures. The Red Valve Lockout enhances workplace safety by reducing the risk of accidental equipment activation, protecting workers during hazardous energy isolation tasks.

Mechanical Valve Lockouts are essential safety devices designed to prevent unauthorized operation of industrial valves during maintenance or repair work. These lockouts physically block the valve handle or wheel, ensuring it remains in the desired position—open or closed—until the task is complete and the lockout is removed. Made from durable materials such as steel, aluminum, or high-impact plastics, they are resistant to corrosion, chemicals, and extreme temperatures. Mechanical Valve Lockouts are compatible with a variety of valve types, including ball, gate, and butterfly valves. Easy to install and use, they are a critical component of lockout/tagout (LOTO) safety procedures.