MASTER LOCKWedge Ball Valve Lockouts

MASTER LOCK Ball Valve Lockout: Wedge, For Quarter Turn Handle Handle Type

The MASTER LOCK Wedge Ball Valve Lockout (MPN S3477) is a lockout device designed for quarter-turn handles, accommodating pipe sizes from 1-1/4 in to 3 in. It secures ball valves during maintenance, ensuring…

SKU 3G-OTH-559534

Brand

MASTER LOCK

Item

Ball Valve Lockout: Wedge, For Quarter Turn Handle Handle Type

Technical Specifications

MASTER LOCK

Manufacturer Part Number

S3477 

Type

For Quarter Turn Handle Handle Type 

For Handle Type

Quarter Turn Handle 

For Max Pipe Size

3 in 

For Maximum Pipe Size

3 in 

For Minimum Pipe Size

1-1/4 in 

View Full Spec Sheet

Technical Documents

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MASTER LOCK Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is a MASTER LOCK wedge ball valve lockout used for?

The MASTER LOCK wedge ball valve lockout (MPN S3477) secures quarter-turn ball valves during maintenance or lockout/tagout procedures. It prevents accidental valve operation, ensuring worker safety and compliance with industrial safety protocols across facilities handling piping systems.

What are the specifications of the MASTER LOCK S3477 ball valve lockout?

The MASTER LOCK S3477 is a wedge-type lockout for quarter-turn handles. It fits pipe sizes from 1-1/4 in minimum to 3 in maximum. The device is designed for use with MASTER LOCK padlocks and is suitable for industrial lockout/tagout applications.

Where to buy MASTER LOCK S3477 ball valve lockout worldwide?

3G Electric supplies the MASTER LOCK S3477 wedge ball valve lockout worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this lockout device.

How to install a MASTER LOCK wedge ball valve lockout?

To install the MASTER LOCK wedge lockout, place the wedge between the valve handle and pipe, then close the handle against the wedge. Secure the lockout by inserting a padlock through the locking holes. Always follow your facility's lockout/tagout procedures and verify the valve is fully isolated before maintenance.

Used in

Common applications for MASTER LOCK

Locker security in industrial facilities — Master Lock built-in deadbolt lock (MPN 1710) for employee lockers

Equipment access control on job sites — Master Lock Bluetooth padlock (MPN 4400ECWWG) for tool cribs and gates

Key management for fleet vehicles — Master Lock lockbox (MPN 5440ECWWG) securing vehicle keys at depots

Padlock for outdoor storage units — Master Lock long shackle combination padlock (MPN 175LH) for hasps on sheds

Keyless entry for maintenance panels — Master Lock scrolling combination padlock (MPN 975DCOM) on electrical enclosures

High-security locking for warehouse cages — Master Lock stainless steel combination padlock (MPN 1500LF) for corrosion resistance

MASTER LOCK Products

3G Electric supplies MASTER LOCK wedge ball valve lockouts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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MASTER LOCK

MASTER LOCK Ball Valve Lockout: Wedge, For Quarter Turn Handle Handle Type, 1 in For Max Pipe Size (MPN S3476). Key specifications — For Handle Type: Quarter Turn Handle; For Maximum Pipe Size: 1 in; For Minimum Pipe Size: 1/4 in; Brand: MASTER LOCK.