CAPI Mechanical Seal Aesseal Double Seal Bellow Mechanical Alloy 276

CAPI™ Type A B and C Category I Dual Seals

• Employs Qualification Tested API 682 Technology
• Thin cross-section (TXS) seal designs for mature asset installation including API 610, 5th Ed. with a 0.500" (12mm) radial cross-sectional space between the shaft and seal chamber
• Robust and reliable seal face drive (Patented floating drive technology) reduces high stress points at equipment start-up
• Probably the most compact dual API cartridge seals on the market which employ API 682 technology
• All sizes available from 1.000" to 5.000" (24mm - 125mm)

CAPI™ Type A Category II and III Dual Seals

• Qualification Tested to API 682
• Stationary flexible element offered as standard for improved pusher design performance as outlined in API 682 Section 6.1.1.5.
• Rotary design is available on request
• Multi-port Flush design offered as standard for optimum seal face cooling
• World-leading bi-directional pumping ring performance with 0.062” (1.5mm) radial clearance between rotor and stator; conforming with API 682 Section 8.6.2.3 without compromise
• All sizes available from 0.750” to 4.375” (20mm - 110mm)

CAPI Type B Category II and III Dual Seals

• Qualification Tested to API 682
• Effective seal-face heat dissipation achieved by a directed barrier fluid flow path, irrespective of shaft rotational direction
• Multi-port Flush design offered as standard for optimum seal face cooling
• 12 edge-welded bellows convolutions as standard
• All sizes available from 0.750” to 4.375” (20mm - 110mm)

CAPI™ Type C Dual Seals

• Qualification Tested to API 682
• World-leading bi-directional pumping ring performance with 0.062” (1.5mm) clearance between rotor and stator
• Effective seal-face heat dissipation achieved by directed barrier fluid flow path
• Identical seal-face technology employed at the inboard and outboard positions
• All sizes available from 0.750” to 4.375” (20mm - 110mm)

CAPI™ Containment Seals

• Containment seal technology that exceeds the requirements of API 682 Ed 3 Section 4.2 and ISO 21049
• High heat dissipation properties due to the AESSEAL® close coupled technology supplied in a robust short working length pusher design
• Eliminates the need for liquid barrier systems
• Isolation bushing available
• Modular design to all Type A, B and C configurations
• Contacting and non-contacting design
• Bi-directional option available
• All sizes available from 0.750” to 3.625” (20mm - 90mm) larger sizes available on application

Also available CAPI-74 a face to face category 2 & 3 seal. The CAPI-74 is a non-contacting dual seal designed for pumps meeting ANSI/API standard 682. Dual pressurized dry gas seals are becoming more common in the Oil and Gas industry and can provide zero process emissions in service.

Performance Capabilities