Plan 02 - Single seals - no flush
Description: Plan 02 is a non-circulating flush plan recommended only where adequate vapor suppression can be assured.
Advantages: Solids are not continually introduced into the seal chamber, no external hardware is required, and natural venting occurs when used with a tapered bore seal chamber.
General: Ideal with large bore/tapered bore ANSI/ASME B73.1 or ISO 3069
Type “C” seal chambers or with hot pro- cess pumps utilizing a cooling jacket. On the latter services, a Plan 62 with steam quench can also provide some additional cooling.