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ALH System-Four: Keyhole Tapping

Product List
System Four: Keyhole Tapping
  • Quick, Simple & Safe Gas Free Operation.


  • Lightweight


  • Designed for installation and operation from above ground through an 18” diameter hole


  • Cuts and taps up to 2” NPT holes


  • Above ground installation of low pressure gas bags


  • Above ground installation of ULC Robotics camera


  • Interchangeable saddles and “G” frames available for 4”, 6”, 8” 10” and 12” mains


  • Low profiled completion plugs available


  • Entry systems for polyethylene mains are available
System Four: Keyhole Tapping
18" Diameter Core Hole

System Four: Keyhole Tapping
Cut and Tap an 1-1/2" Hone
(Note large obstruction)

System Four: Keyhole Tapping
Installing a 1-1/2"
Low-Profile Plug

System Four: Keyhole Tapping
Low-Profile Plug Installed

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