MASTER LOCK Butterfly Valve Lockout: Cable Locking, For Lever Handle Handle Type
The MASTER LOCK Butterfly Valve Lockout (MPN S3920) is a cable-locked squeeze-trigger handle lockout device for lever handle valve types, supplied in red. It is designed to secure butterfly valves in the closed…
SKU 3G-OTH-554975
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Product Description
The MASTER LOCK Butterfly Valve Lockout (MPN S3920) is a cable-locked squeeze-trigger handle lockout device for lever handle valve types, supplied in red. It is designed to secure butterfly valves in the closed position during maintenance, with no cable included. 3G Electric interprets this demand and delivers the genuine MASTER LOCK product, backed by our specialist expertise across 14 industrial departments — including combustion, pumps, and controls — to ensure you get the right solution for your facility's lockout/tagout needs.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the MASTER LOCK S3920 butterfly valve lockout used for?
The MASTER LOCK S3920 is a cable-locked squeeze-trigger handle lockout device used to secure lever-handle butterfly valves in the closed position during maintenance. It supports lockout/tagout safety procedures in industrial facilities, helping prevent accidental valve operation while workers are servicing equipment.
What are the specifications of the MASTER LOCK S3920 butterfly valve lockout?
The MASTER LOCK S3920 is a red cable-locked squeeze-trigger handle lockout device designed for lever handle butterfly valves. It is supplied without a cable. The manufacturer part number is S3920, and the brand is MASTER LOCK. It is intended for lockout/tagout safety applications.
Where to buy the MASTER LOCK S3920 butterfly valve lockout worldwide?
3G Electric supplies the genuine MASTER LOCK S3920 butterfly valve lockout to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. As a global industrial solutions provider, we interpret your demand and source the right safety equipment for your lockout/tagout needs.
How to install the MASTER LOCK S3920 butterfly valve lockout?
To install the MASTER LOCK S3920, first ensure the butterfly valve is fully closed. Place the lockout device over the lever handle, engaging the squeeze-trigger mechanism. Insert a padlock through the locking holes to secure the device. Follow your facility's lockout/tagout procedures and consult the manufacturer's instructions for proper use.
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3G Electric supplies MASTER LOCK cable-locked squeeze-trigger handle butterfly valve lockout. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.


