682A Pusher Seals
The 682A Series of cartridge seals represent a range of seals produced by PPC to meet the criteria of the Type A design under API Standard 682. These designs are balanced, internally mounted cartridge pusher seals with multiple springs and O-ring secondary sealing members. Designed as Category 2 seals per API 682, these designs are fully compatible with API 610 pumps. Per API 682, the standard seal designs feature a rotating flexible element (springs), with the option of stationary spring designs as warranted by the application. Under the API Standard, the seals are applicable to process temperatures up to 350 °F (176 °C) and pressures up to 600 psig (40 bar g), although the PPC engineered seals are capable of more demanding service conditions.
682A Series seals may be provided in all three API Arrangements (single, tandem, double), and are available in custom configurations.