The type of seal ring used for atmospheric manholes is related to the medium involved. Generally, silicon rubber seals are commonly used, which possess good sealing properties.

Sealed performance, waterproof and leak-proof. Can be used almost indefinitely at 150° without any performance changes.

The fluororubber sealing rings boast excellent flame retardancy, airtightness, high-temperature resistance, oil resistance, solvent resistance, burn resistance, chemical resistance, and climate resistance.

Quality, commonly used in food, chemical, brewing, and biological fields. Intermediates between the two.

EPDM rubber seals: boast excellent weather resistance, ozone resistance, water resistance, and chemical resistance. Suitable for alcohols and ketones, as well.

Seal for High-Temperature Steam Environment