Topog-E Gaskets
The Topog-E Gasket Company manufactures molded rubber gaskets to fit the waterside of every kind of steam boiler currently in production today. These gaskets are internationally recognized and renowned for their high quality, exceptional perfomance, and ease of installation and have become the industry standard for waterside gaskets.
The D. B. Johnsen Company has been selling Topog-E gaskets at an affordable price for many years. In addition, our Service Department has standardized with Topog-E and they are the only gaskets our technicians install for waterside maintenance in boiler rooms.
GASKET SHAPES AND SIZES
Most Topog-E gaskets are either elliptical or obround and are measured as shown below:
ELLIPTICAL Gaskets are measured as follows: OBROUND Gaskets are measured as follows:
When ordering gaskets, specify the measurements as A x B x C.
If unsure of your dimensions, please call our knowledgeable Parts Department with model number, serial number, and manufacturer of the boiler and we can select the proper gaskets for the application.
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ELLIPICAL HANDHOLE GASKETS |
ELLIPTICAL MANWAY GASKETS |
OBROUND HANDHOLE GASKETS |
| 2" x 3" x 3/8" E | 5" x 7" x 3/4" E | 2"x 3" x 1/2" OB |
| 2 1/4" x 3 1/4" x 1/2" E | 6" x 8" x 1" E | 2 1/4" x 3 1/4" x 1/2"OB |
| 2 1/2" x 3 3/4" x 1/2" E | 9" x 14" x 1 1/4" E | 2 1/2" x 3 1/2" x 1/2" OB |
| 2 1/2" x 3 1/4" x 3/8" E | 10" x 14" x 1" E | 2 1/2" x 3 3/4" x 1/2" OB |
| 2 3/4" x 3 3/4" x 1/2" E | 10" x 15" x 1 3/8" E | 2 3/4" x 3 1/2" x 1/2" OB |
| 2 3/4" x 3 3/4" x 5/8" E | 10" x 16" x 1 1/4" E | 2 3/4" x 3 3/4" x 1/2" OB |
| 2 3/4" x 4 1/4" x 1/2" E | 10 1/2" x 14 1/2" x 1 1/4" E | 2 3/4" x 4 1/2" x 1/2" OB |
| 2 7/8" x 3 7/8" x 1/2" E | 11" x 14" x 1 1/4" E | 3" x 4" x 1/2" OB |
| 3" x 3 3/4" x 1/2" E | 11" x 15" x 1" E | 3" x 4" x 9/16" OB |
| 3" x 4" x 1/2" E | 11" x 15" x 1 1/4" E | 3" x 4 1/4" x 1/2" OB |
| 3" x 4" x 5/8" E | 12" x 16" x 1 1/4" E | 3" x 4 1/2" x 9/16" OB |
| 3" x 4 1/2" x 1/2" E | 14" x 18" x 1 1/2" E | 3" x 5" x 9/16" OB |
| 3 1/4" x 4 1/4" x 1/2" E | 3 1/4" x 4 1/4" x 9/16" OB | |
| 3 1/4" x 4 1/2" x 1/2" E | 3 1/4" x 4 1/2" x 1/2" OB | |
| 3 1/2" x 4 1/2" x 1/2" E | 3 1/4" x 4 1/2" x 9/16" OB | |
| 3 3/4" x 4 3/4" x 9/16" E | 3 1/4" x 5 1/4" x 9/16" OB | |
| 4" x 5" x 5/8" E | 3 1/2" x 4 1/2" x 9/16" OB | |
| 4" x 6" x 5/8" E | 3 1/2" x 5" x 9/16" OB | |
| 4" x 6" x 3/4" E | 4" x 5" x 5/8" OB | |
| 4 1/2" x 5 1/2" x 5/8" E | 4" x 6" x 5/8" OB | |
| 4 1/2" x 6 1/2" x 9/16" E | 4 1/2" x 6 1/2" x 5/8" OB | |
| 5" x 6" x 5/8" E | 5 "x 7" x 5/8" OB | |
| 10 1/2" x 14 1/2" x 1 5/16" OB | ||
| 11"x 15" x 1 1/4" OB | ||
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12" x 16" x 1 1/2" OB |
SPECIALITY GASKETS
In addition to the standard handhole and manway gaskets, the D. B. Johnsen Company offers a number of special Topog-E Gaskets. These include glass gauge gaskets, spiral wound gaskets, float gaskets, square gaskets, and pear and diamond shaped gaskets.
To order Topog-E Gaskets call the D. B. Johnsen Company Parts Department between 8:00 AM - 4:30 PM EST at 1 800-442-1242 or click here to email us.
