Plan 62

Position:

Atmosphere side

Description:

An external system provides a suitable quench medium on the atmosphere side of the seal face. The quench medium is usually unpressurized or has a slight overpressure compared to the atmosphere. Common quench media are water, steam or nitrogen.

The circulation of the quench medium is carried out by the external system (e.g. by a pressure difference).

Common use:

• To eliminate oxygen on the atmosphere side of the seal face (e.g. prevent coking)
• For flushing out leakage or material deposits on the atmosphere side
• For heating the sealing components

Application example:

Sealing of molasses in pumps with single-acting mechanical seals to prevent crystallizing leakage at ambient air.

Sealing of butene in pumps with single-acting mechanical seals to prevent freezing humidity.