Master Lock Blind Flange Lockout Device
Available
Master Lock Blind Flange Lockout Device.
The adjustable device gives a secure fit on a variety of flange widths, conceals the flange bolts and has four lockout holes for multiple workers. Sizes by nut diameter: Large 52mm-70mm.
Where this product is used
- Locking out blind flanges
- Covering flange nuts and bolts
Features
- Adjustable device with a secure fit on a variety of flange widths
- Conceals the flange bolts
- Four lockout holes for multiple workers
- Powder-coated aluminium and hardened steel construction, described as withstanding conditions indoors and out
Key specifications
| Specification | Detail |
|---|---|
| Brand | Master Lock |
| Part numbers | S3924 (Large) |
| Construction | Powder-coated aluminium and hardened steel |
| Lockout holes | Four |
| Size | Large |
| Suits nut diameter | 52mm-70mm |
Choosing the right option
Measure the diameter of the flange nuts and choose the size whose range includes it: Large 52mm-70mm.
Related valve lockouts: Rotating Gate Valve Lockout (0481 to 0485), Butterfly Valve Lockout (S3920), Adjustable Ball Valve Lockout 6mm to 101mm (S3068).
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Master Lock Blind Flange Lockout Device
SKU: A0087009 | Model: S3924
Master Lock S3924 is a blind flange lockout device. Suits nut diameter: 52mm to 70mm. Construction: Powder-coated aluminium and hardened steel.

