Topog-E® Manway Gaskets

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Topog-E® Manway Gaskets

Premium Topog-E® manway gaskets provide superior, reliable sealing for critical high-pressure industrial boiler inspections.

Get a Quote Order now (502) 459-9131

We have a full inventory of OEM-compatible Topog-E® Gaskets at all sizes and horsepower requirements.

  • C306-801
    9" x 12" x 1"E
  • C306-802
    9" x 14" x 1-1/4"E
  • C306-899
    10" x 14" x 1"E
  • C306-803
    10" x 14" x 1-3/8"E
  • C306-900
    10" x 14" x 1-1/2"E
  • C306-805
    10" x 15" x 1-3/8"E
  • C306-811
    10" x 16" x 1-1/4"E
  • C306-901
    10-1/2" x 14" x 1"E
  • C306-806
    10-1/2" x 14-1/2" x 1-1/4"E
  • C306-808
    10-1/2" x 14-1/2" x 1-3/8"E
  • C306-809
    10-1/2" x 14-1/2" x 1-3/4"E
  • C306-807
    10-1/2" x 15" x 1-1/4"E
  • C306-810
    10-3/4" x 14-3/4" x 1-1/4"E
  • C306-812
    11" x 14" x 1-1/4"E
  • C306-814
    11" x 14" x 1-3/8"E
  • C306-815
    11" x 14-1/2" x 1"E
  • C306-933
    11" x 15" x 1"E
  • C306-936
    11" x 15" x 1-1/4"E
  • C306-822
    11" x 15" x 1-3/8"E
  • C306-824
    11" x 15" x 1-3/4"E
  • C306-819
    11" x 16" x 1-1/4"E
  • C306-823
    11-1/2" x 15-1/2" x 1-1/4"E
  • C306-818
    11-1/2" x 15-1/2" x 1-3/8"E
  • C306-821
    11-1/2" x 15-1/2" x 1-1/2"E
  • C306-825
    11-1/2" x 15-1/2" x 1-3/4"E
  • C306-817
    11-5/8" x 15-5/8" x 1-1/4"E
  • C306-827
    11-3/4" x 15-3/4" x 1-3/8"E
  • C306-826
    12" x 15" x 1-1/4"E
  • C306-820
    12" x 15-1/2" x 1-1/4"E
  • C306-828
    12" x 16" x 1"E
  • C306-939
    12" x 16" x 1-1/4"E
  • C306-831
    12" x 16" x 1-3/8"E
  • C306-835
    12" x 16" x 1-1/2"E
  • C309-882
    14" x 18" x 1"E
  • C306-880
    14" x 18" x 1-1/2"E
  • C306-890
    18" x 24" x 1-1/2"E
  • C306-993
    11" x 15" x 1-1/4"OB
  • C306-695
    12" x 16" x 1-1/4"OB
  • C306-696
    12" x 16" x 1-1/2"OB

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In-stock items. Order by 3:00 PM EST for Same-Day Shipping.

Need help finding the right Gasket?

We carry a large inventory and if we don’t have what you need, we can help track it down for you. Give us a call.

Get a Quote Call Us (502) 459-9131

Frequently Asked Questions About Gaskets

The primary function of a boiler gasket is to establish a secure, leak-proof pressure boundary between matching mechanical joints and access portals. Operating across high-heat combustion zones or fluid paths, gaskets conform seamlessly to imperfect steel surfaces under compression. This secure seal prevents extreme furnace heat, toxic flue gases, and pressurized steam or water from escaping past major structural doorways, maintaining optimal system energy efficiency and protecting your plant infrastructure.

Fireside and waterside gaskets are engineered from completely different material properties to handle the separate environments within a boiler system:

Fireside Gaskets: Positioned along the combustion side (such as front and rear doors or burner mounts), these components are manufactured from high-temperature textiles, non-hazardous ceramic fibers, or specialized tadpole tapes. Their role is to contain extreme dry heat and block toxic flue gases.

Waterside Gaskets: Positioned around pressurized water tracking lines, handholes, and manhole inspection plates, these parts utilize compression-molded elastomers, wire-reinforced woven compounds, or graphite. Sealing options like premium Topog-E®, BLUE-MAX®, or BLACK-MAX® gaskets are specifically chosen to hold back high-pressure water and steam while resisting chemical treatments.

Sourcing full boiler gasket kits ensures that your mechanical technicians have every necessary matching component required to complete an inspection or cleanout in a single turnaround window. A complete package eliminates the operational downtime caused by missing small details, such as compression washers or dynamic tadpole cuts, mid-repair. Sourcing these comprehensive aftermarket solutions ensures all fresh sealing boundaries settle at identical mechanical compression depths, significantly reducing the risks of uneven joint tracking or premature blowout failures.

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