Valve Locks

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Adjustable Ball Valve Lockout

The Master Lock No. S3081 Adjustable Ball Valve Lockout features durable, lightweight Zenex™ Thermoplastic material to withstand chemicals and extreme temperatures. Device is easy to use and prevents accidental activation of a closed ball valve. The adjustable design fits 1/2in (25mm) to 2in (51mm) valves and four locking holes accept all American Lock® and Master Lock® safety padlocks.

Butterfly Valve Lockout

The Master Lock No. S3920 Butterfly Valve Lockout Device locks out virtually any butterfly valve in just seconds with use of S806 adjustable locking cable. The easy-to-use wedge-shaped device features a stainless steel rivet allowing device to smoothly pivot open and closed to ensure proper fit and directional application arrows allow for ease of installation and minimize error. Made of durable, lightweight Zenex™ thermoplastic material, device is chemical resistant and performs effectively in extreme environments.

Pressurized Gas Valve Lockout

The Master Lock No. S3910 Pressurized Gas Valve Lockout Device fits virtually all valves up to 3in (76mm) diameter and works on valves with or without guarding. This patented device surrounds the gas valve handle to protect against accidental valve opening. Accepts any Master Lock or American Lock Safety padlocks and hasps – multiple workers can apply their personal safety locks.

Rotating Gate Valve Lockout

The Master Lock No. 480 Rotating Gate Valve Lockout Device features a 1-1/16in (30mm) depth and 3/4in (19mm) stem opening for 1in (25mm) to 3in (76mm) diameter valve handles to surround the valve operating handle to protect against accidental valve opening. The unique, patented rotating design allows for easier installation in confined space applications. Tough, lightweight, dielectric Zenez™ Thermoplastic body withstands chemicals and performs effectively in extreme conditions. Includes high-visibility permanent safety labels.

Rotating Gate Valve Lockout, Set of All Five Size

The Master Lock No. 485 Rotating Gate Valve Lockout Device combo pack includes a set of five lockouts – 480, 481, 482, 483, 484. These gate valve lockout devices feature outward/inward rotation to allow for easier installation and storage and the body surrounds the valve operating handle to protect against accidental valve opening. The unique, patented rotating design allows for easier installation in confined space applications. Tough, lightweight, dielectric Zenez™ Thermoplastic body withstands chemicals and performs effectively in extreme conditions. Includes high-visibility permanent safety labels.

Seal Tight™ Handle-Off Ball Valve Lockout

The Master Lock No. 468L Seal Tight™ Handle-Off Ball Valve Lockout Device features a universal fit to effectively lock out all valves from 3/8in (19mm) to 4in (102mm). The patented innovative design eliminates the risk of valve reactivation with removal of the handle and works in virtually all valve installations, including insulated pipes. Constructed of durable PVC polyester fabric and HDPE plastic, the lightweight, flexible material makes device easy to carry and compact storage in safety toolboxes.

Seal Tight™ Handle-On Ball Valve Lockout

The Master Lock No. S3068 Seal Tight™ Handle-On Ball Valve Lockout features durable aluminum & steel construction to defy corrosive environments and extreme temperatures. The patent-pending lightweight and compact device is designed to clamp tight on handle stop to prevent handle movement. Available for North America only, it can be applied to 1/4in (6mm) to 4in (102mm) sized valves and works on insulated pipes and in close quarters

Wedge-Style Ball Valve Lockout

The Master Lock No. S3476 1/4 Turn Ball Valve Lockout features a compact size that can easily be stored or carried and a heat resistant powder coated metal body. Device fits manual, quarter turn ball vale handles to protect against accidental opening and fits valves between 1/4in (6mm) to 1in (25mm) diameter. The easy-to-use one piece design locks valve in OFF position.