Cast Aluminum Expansion Plugs

aluminum expansion plugs

From 1½" to 36"    'Light, Tough and Available'

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 COB Advantages:

  • Lightweight, easy to handle - up to 70% lighter than similar steel plugs.
  • Durable cast aluminum - heavy duty, non-corrosive and maintenance-free; with natural rubber.
  • Fill or Vent - threaded pipe stem has removable cap.
  • Simple to install and work with - wing nut easily expands rubber seal.
  • Special sizes are available to increase expansion range.

Note: Expansion plugs are less effective at higher limits of expansion than in the mid range. Let us help you by supplying the proper sizes for your requirements.

ALUMINUM / AP1.5" TO 36"
Item Number Nominal Size Size Unexpanded Size Expanded Stem Diameter Unit Weight (LBS.)
COB.AP01.50 1.50" 1.456" 1.889" 0.50" .50
COB.AP02.00 2.00" 1.889" 2.440" 0.50" .50
COB.AP02.50 2.50" 2.440" 2.775" 0.50" .50
COB.AP03.00 3.00" 2.795" 3.425" 0.50" .75
COB.AP03.50 3.50" 3.503" 3.700" 0.50" 1
COB.AP04.00 4.00" 3.779" 4.133" 0.50" 1
COB.AP04.50 4.50" 4.251" 4.724" 0.50" 1
COB.AP05.00 5.00" 4.842" 5.393" 0.50" 1.5
COB.AP06.00 6.00" 5.900" 6.550" 0.50" 1.5
COB.AP07.00 7.00" 6.550" 7.300" 1.00" 3.2
COB.AP08.00 8.00" 7.700" 8.550" 1.00" 3.4
COB.AP09.00 9.00 8.200" 9.100" 1.00" 3.9
COB.AP10.00 10.00" 9.200" 10.250" 1.00" 4.5
COB.AP11.00 11.00" 10.300" 11.200" 1.00" 4.9
COB.AP12.00 12.00" 11.350" 12.450" 1.00" 6.7
COB.AP14.00 14.00" 13.800" 15.100" 1.00" 11
COB.AP15.00 15.00" 14.350" 15.800" 1.00" 11.3
COB.AP16.00 16.00" 15.600" 17.000" 1.00" 13.8
COB.AP18.00 18.00" 17.450" 19.250" 1.00" 17
COB.AP20.00 20.00" 19.150" 20.650" 2.00" 30
COB.AP21.00 21.00" 20.650" 22.100" 2.00" 22.7 (steel)
COB.AP24.00 24.00" 23.550" 25.500" 2.00" 33
COB.AP27.00 27.00" 26.250" 27.700" 2.00" 44
COB.AP30.00 30.00" 29.250" 31.000" 2.00" 60
COB.AP32.00 33.00" 32.500" 34.800" 2.00" 86
COB.AP36.00 36.00" 34.500" 36.800" 2.00" 96

 

 


 

links to
 Nylon Expansion Plugs  Aluminum Expansion Plugs  OLS Pipe Plug/Flow Stopper
 Flex ODS Bypass Plugs  Megaplug  Bag Plugs
 Qwik-Sealfast Inflatable Plugs  High Pressure Stoppers Qwik-Socket Weld Plug
 Qwik-High External Closure Qwik-Test Seal Plugs Medium Pressure Roll-ups
Qwik-Fit Cylinder Plugs Chemical Resistance Plugs  

 

link to pipe plug index page



 

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