Heat resistant rubber ring EPDM rubber seal o ring

An EPDM rubber seal o ring provides a circular sealing element for a defined joint or groove. The internal diameter and cross section need to match the available space and intended compression. The material should be selected for the actual temperature and medium encountered by the assembled seal.

Consider the conditions at the ring itself, including heating and cooling cycles and substances used during maintenance. A nearby equipment temperature setting may not describe the complete exposure. The groove should support the ring without requiring it to be stretched into an unsuitable diameter or pinched when the parts close. Clean the mating surfaces before installation and place the ring without twists. Evaluate the completed joint through its intended operating conditions rather than assigning capability from the rubber name alone. After disassembly, inspect the section for damage and changes in shape. Replacement should preserve the exact size and formulation so the joint returns to its designed contact relationship.

Material options

EPDM. Custom formulation and color for the intended contact conditions.

Hardness selection

Rubber: 30–90 Shore A. The groove should support the ring without requiring it to be stretched into an unsuitable diameter or pinched when the parts close.

Custom dimensions

The internal diameter and cross section need to match the available space and intended compression.

Fit & assembly

Clean the mating surfaces before installation and place the ring without twists.

Use & inspection

After disassembly, inspect the section for damage and changes in shape.

Photos illustrate structure or material only. The internal diameter and cross section need to match the available space and intended compression. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.