Durable Clamshell Seals

Clamshell seals are designed to seal the outer diameter of a tube or pipe. They come in a variety of shapes including rectangles, ovals, circles, cylinders, and squares. Clamshell seals are also made in varying thicknesses and measurements, with either a solid or hollow center to accommodate leak testing and sealing applications.

Cincinnati Test Systems offers clamshell seals in general purpose, premium, and medical (FDA approved) grades in durometers from 20 to 90D shore. We only use durable urethane material to provide a long-lasting, reliable seal in normal and challenging operating conditions.
 
Our inventory includes clamshell seals in various configurations and diameters, and we can create customized seals upon request. Select from the clamshell seals below to request a quote or contact us to discuss your unique sealing requirements.

CTS-3A

8.70 in. x 6.34 in. x .412 in. thick All of our urethane seals are now ...

CTS-3B

8.772 in. long x 6.433 in. wide x .460 in. thick All of our urethane seals ...

CTS-7

Triangular plenum plate All of our urethane seals are now available in ...

HCM-95

Inflatable seal for A-Mold and Enkei wheel machines All of our urethane ...

CTS-42

2.696 in. x 2.651 in. x .156 in. wall thickness x .509 in. thick All of ...

HCM-59

6.5 in. x 1.125 in x .438 in thick ( clamshell seal ) All of our urethane ...

HCM-88

2.651in. x 2.651 in x .50 thick All of our urethane seals are now ...

HCM-93

6.5 in. X 1.310 in. X .438 in. for .200 in. dia. tube ( clamshell ) All of ...

HCM-94

6.5 in. X 1.310 in. X .438 in. for .262 in. dia. tube ( clamshell ) All of ...

HCM-98

10.5 in. X 1.310 in. X .438 in. for .186 in. dia. tube ( clamshell ) All ...

HCM-99

9.0 in. X 1.310 in. X .438 in. for .186 in. dia. tube ( clamshell ) All of ...

HCM-111

5 in. X 1.50 in. X .438 in. for .186 dia. tube ( clamshell ) All of our ...

HCM-113

9.0 in. X 1.50 in. X .438 in. for .186 dia. tube ( clamshell ) All of our ...

HCM-114

10.5 in. X 1.50 in. X .438 in. for .186 dia. tube ( clamshell ) All of our ...

HCM-143 BIDURO

5.50 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ) ...

HCM-157

6.375 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-158

7.375 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro.) ...

HCM-159

6.375 in. X 1.25 in. X .438 in. for .250 dia. tube ( clamshell dual duro.) ...

HCM-160

7.375 in. X 1.25 in. X .438 in. for .264 dia. tube ( clamshell dual duro.) ...

HCM-174 BIDURO

8.375 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-175 BIDURO

8.375 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-216 BIDURO

7.375 in. X 1.25 in. X .438 in. for .236 dia. tube ( clamshell dual duro.) ...

HCM-271

8.875 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-272

.906 in. X .863 in. X .326 in. for 3/16" dia. tube ( clamshell dual duro. ...

HCM-277 BIDURO

9.375 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-283

.906 in. X .863 in. X .326 in. for 6mm dia. tube ( clamshell dual duro. ) ...

HCM-284

8.875 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-285

.906 in. X .863 in. X .326 in. for .201" dia. tube ( clamshell dual duro. ...

HCM-302 BIDURO

7.375 in. X 1.25 in. X .438 in. for .264 dia. tube ( clamshell dual duro.) ...

HCM-321

4.763 in. X 1.30 in. X .478 in. thick for 3/16" dia. tube ( clamshell ) ...

HCM-372

5.875 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-388 BIDURO

8.375 in. X 1.25 in. X .438 in. for 8 mm dia. tube ( clamshell dual duro.) ...

HCM-452

7.875 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-464

6.775 in. X 1.25 in. X .438 in. for .200 dia. tube ( clamshell dual duro. ...

HCM-98 BIDURO

10.5 in. X 1.310 in. X .438 in. for .186 in. dia. tube ( dual duro. ) All ...

HCM-99 BIDURO

9.0 in. X 1.310 in. X .438 in. for .186 in. dia. tube ( dual duro. ) All ...

Learn More About Our Custom Seals for Industrial Applications

CTS offers a broad range of clamshell seals and bullet seals to meet your needs. We also provide bullet seals, round seals, and cut seals in a variety of sizes and styles. Request a quote for the custom seals you need, or contact us for more information.
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