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Ball Valve Lockout Devices

Ball Valve Lockout

Handle Ball Valve Lockout fits into virtually all manual, quarter-turn ball valve handles to protect against accidental valve opening.

  • 2 sizes to fit most valves
  • Easy to use, single-piece design locks ball valves in closed position
  • Compact size easily stored when not being used
  • Two rows of lockout points for more accuracy
S3476 S3477
Technical Features

  • Powder-coated steel body
  • Heat resistance
  • S3476 fits valves up to ø 6.35mm to ø 25mm
  • S3477 fits valves up to ø 31mm to ø 76mm


Seal Tight™ Lockout

The solution that positively shuts off energy

Provides Universal Fit for Valve Applications and Diameters

  • The Seal Tight™ device works on virtually all valve sizes and in all applications
  • Patented innovative design eliminates the risk of valve operation.
  • Works in virtually all valve installations – metal and PVC valves, insulated pipes, pipes mounted close to a wall or ceiling, and valves with tight access due to close proximity of other valves or pipes
  • Temperature resistance [-40° C to 121° C]
  • Easy to use Universal Fit
  • Fits Tight Clearances



Product number Description Size (WxlxH)
S3476 Handle-on Ball Valve Lock out 141 x 57 x 44 mm
S3477 Handle-on Ball Valve Lock out 240 x 80 x 20 mm
468L Handle-on Ball Valve Lock out – Seal Tight 223 x 285 mm