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Cross section of installed-Kor N-Seal II 306 Series - Trelleborg

Seal design & function

The patented 4” wide Stainless Steel Korband is able to overcome the curvature of smaller sized manholes and provide a watertight seal.

Kor N-Seal II 306 Series - Trelleborg

Features

  • Can be used in cored or formed holes 

  • Meets the specifications of ASTM C923 

  • Easy to install

Sizing Chart

P/N
 Suggested
Pipe O.D Range
 Hole Size
Range 		 Connector Dimensions 
 Pipe
Clamp 
 Min. 
Manhole
Size
A B C D Qty P/N
S306-22
S306-22L
 17.625-18.500
 21.98-22.13 19.875   19   10.5  2 l-318  36/4
18.500-19.625  20  2
S306-24
S306-24L
 19.625-20.500
 23.98-24.13 21.875   21  10.5
  4 l-180
  36/4
20.500-21.625
  22  4
S306-26
S306-26L
 21.625-22.500
 26.00-26.20 23.875   23  10.5
  4 l-190
  36/4
22.500-23.625  24  4
 l-218
S306-28
S306-28L
 23.625-24.500
 26.00-26.20
 25.875   25  10.5
  4
 l-218
  48/5
24.500-25.625
  26  4
S306-30
S306-30L
 25.625-26.500
 30.00-30.20 27.875   27  10.5
  4
 l-218
  48/5
26.500-27.625   28  4
 l-242
S306-30L-32
 26.500-27.625
 32.00-32.20
 29.875   28  10.5
  4
 l-212
  48/5
S306-32
S306-32L
 27.625-28.500
 32.00-32.20
 28.875
  29  10.5
  4
 l-242
  48/5
28.500-29.625   30  4
S306-34
S306-34L
 29.625-30.500
 34.00-34.20
 31.875
  31  10.5
  4
 l-258
  48/5
30.500-31.625   32  4
S306-36
S306-36L
 31.625-32.500
 36.00-36.20
 33.250  33  10.5
  4
 80667
Power Gear		  60/6
32.500-33.000
  34  4
S306-36-STORM
S306-36L-STORM
 31.625-32.500
 36.00-36.20
 33.875   33  10.5
  4
 l-282   60/6
32.500-33.625
  34  4
S306-38
S306-38L
 33.625-34.500
 38.00-38.20
 35.250   35  10.5
  4
 80667
Power Gear 		  60/6
34.500-35.000   36  4
S306-38LS-PG
 34.625-35.625
 38.00-38.20
 35.875  36  10.5
  4
 80667
Power Gear
  60/6
S306-38-STORM
S306-38L-STORM
 33.625-34.500 38.00-38.20
 35.875
  35  10.5
  4 l-282
  60/6
34.500-35.625  36  4 l-306
48" Round
48" Round
P/N
 Suggested Pipe
O.D Range
 Hole Size Range  Connector
Dimensions 
 Pipe
Clamp
 Min.
Manhole
Size
A B C D Qty  P/N
S306-40
S306-40L 		 35.625-36.500
 40.00-40.20
 37.250 37 10.5
 4
 80667
Power Gear
 60/6
36.500-37.000  38 4
S306-40-STORM
S306-40L-STORM
 35.625-36.500
 40.00-40.20
 37.875  37 10.5
 4
 l-306 60/6
36.500-37.625  38 4
S306-42
S306-42L 
 37.625-38.500  42.00-42.20
 39.250  39 10.5
 6 80667
Power Gear
 72/7
38.500-39.000
 40 6
S306-42-STORM
S306-42L-STORM
 37.625-38.500  42.00-42.20
 39.875   39 10.5
 4
 l-318 72/7
38.500-39.625
 40 4
S306-44
S306-44L 
 39.625-40.500
 44.00-44.20
 41.250  41 10.5
 8 80667
Power Gear 		 72/7
40.500-41.000  42 8
S306-44LS-PG
 40.500-41.625  44.00-44.20
 41.875   42 10.5
 8 80667
Power Gear 		 72/7
S306-44-STORM
S306-44L-STORM
 39.625-40.500
 44.00-44.20
 41.875   41 10.5
 4
 l-348  72/7
40.500-41.625  42 4
S306-46
S306-46L
 41.625-42.500  46.00-46.20
 43.250  43 10.5
 6 80667
Power Gear 		 72/7
42.500-43.000  44 6
S306-46-STORM
S306-46L-STORM
 41.625-42.500
 46.00-46.20
 43.875 
 43 10.5
 4
 l-348   72/7
42.500-43.625  43 4
S306-48
S306-48L 		 43.625-44.500
 48.00-48.20
 45.250   45 10.5
 6 80667
Power Gear 		 72/7
44.500-45.000 46 6
S306-48-STORM
S306-48L-STORM
 43.625-44.500
 48.00-48.20
 45.875   45 10.5
 6 l-242
 72/7
44.500-45.625
 46 6 l-258 

48" Round
48" Round
Section view drawing of Kor-N-Seal® II 306 - Trelleborg

Dimensions

All data in inch
Subject to change for technical reasons

Corrugated Pipe Adapter - Trelleborg

Using Corrugated Pipes

Adapters are required when using Corrugated Pipe. 

Refer to the Corrugated Pipe Adapter Datasheet for details. 

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