Skip to main content
Moen

Blind Flange Lockout: S3923

Blind Flange Lockout Device,  Medium
 Snag_4981701a.png Snag_1a9b8738.png Snag_1a9b7d74.png The Master Lock No. S3923 Blind Flange Lockout device is a physical, best practice solution for pipeline maintenance. The adjustable cup allows for a secure fit that conceals and locks out access to nuts holding a blind in place. Workers can perform maintenance with confidence that the blind they placed on a pipeline will not be removed until all workers have removed their padlocks. 4 locking holes allow for multiple workers to lockout device at one time.
Warranty:
Certifications/Compliance:
Videos:

Limited Lifetime Warranty: MASTER LOCK PRODUCT WARRANTY

  Video Library
Product Dimensions:
  • Blind Flange Height: 13 in (33 cm) 
  • Blind Flange Length: 16.9in (43 cm) 
  • Blind Flange Depth: 2 in (5.1 cm) 
  • Pipe Diameter Range: 3-1/2 in–12 in (88.9 mm–304.8 mm)  
  • Pipe Flange Width Range: 3-3/4 in–10-3/4 in (95.3 mm–274.6 mm)
  • Operating Temp: -40°F–200°F (-40°C–93.3°C)
Product Details
  • Device fully conceals flange bolts preventing access to the blind until all work has been completed
  • Adjustable device provides a tight fit, adapting to multiple flanged pipe applications
  • Recommended for use with nut diameter from 1-5/16in to 1-7/8in (33.3mm - 47.8mm)
  • Four lockout holes allow for multiple workers to lockout device at one time
  • Durable aluminum and hardened steel construction withstands conditions indoors and out
  • Product Number: S3923
  • Description: Others
  • Master Carton Qty: 6
  • Accepts Shackle Diameter up to: 9/32 in (7 mm)
  • Color: Red
Technical Literature:
 

 

 

 

  • Was this article helpful?