Factory custom made high quality rubber threaded pipe hole sealing plugs

These rubber threaded pipe hole sealing plugs are custom closure components for openings where the thread geometry forms part of the fit. The diameter, pitch, engagement length, and accessible end need to be considered together. A nominal pipe designation alone is insufficient to define a molded plug that seats correctly.

Begin with the opening's usable thread and the required closing position. Nearby shoulders may limit how far the plug can enter, while a recessed port may make the exposed end difficult to grasp. The design should allow the intended insertion and removal method without concentrating force on a thin rubber feature.

Before fitting, clear loose particles from the entrance and examine the first thread for damage. Start the plug in line with the opening rather than forcing it at an angle. A closure that resists immediately may be encountering a mismatched feature or obstruction; additional force can distort the rubber without improving its engagement.

Choose the compound for the substances and temperatures present in service. Threaded form does not by itself establish pressure capability, so the completed pipe assembly must define the operating conditions. If the plug is used during maintenance, inspect it after removal for cuts following the thread path. Maintain the original profile when replacing it so that both engagement and end clearance remain appropriate.

Material options

Rubber compound options, customized alongside the profile and contact conditions.

Hardness selection

Solid rubber options: 30–90 Shore A. A closure that resists immediately may be encountering a mismatched feature or obstruction; additional force can distort the rubber without improving its engagement.

Custom geometry

The diameter, pitch, engagement length, and accessible end need to be considered together.

Fit evaluation

Choose the compound for the substances and temperatures present in service.

Color & OEM

Custom colors; OEM identification positioned outside closure contact surfaces.

Photos illustrate structure or material appearance only. The diameter, pitch, engagement length, and accessible end need to be considered together. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.