CAPI-TXS

Radial clearances and sleeve thickness maintain compliance with API standards.

• Field proven reliable solution
• Cartridge seal design
• No modification to pumps usually required
• Simple retrofit upgrade
• API 682 qualified seal faces and features
• Factory assembly pressure tested

CAPI-TXS

CAPI-TXS incorporate API 682 qualified seal faces and components and also design to fit old edition API 610 pumps with smaller seal chambers.

Seal Inventory Reduction Programs
The traditional component seals used are made up from multiple parts – major components & consumables such as O’rings.
Seals typically stocked as individual components in different part bins.Also It is not uncommon for different material options
inventory. With the use of modern material options and a cartridge assembly, inventories can significantly reduce thus reducing costs of inventory management.

Design Features

Improved performance and reliability.

Elimination of Shaft / Sleeve Fretting
The AESSEAL® CAPI has stationary mounted springs. API 682 4th Edition-states: stationary spring seals may choose because they give the benefit that if the gland plate and shaft lose their perpendicular alignment due to pump case distortion the faces remain correctly aligned.

Pump case misalignment can occur due to pipe loads, thermal distortion, pressure distortion, etc; with a stationary spring seal,
perpendicularity of the seal faces is controlled by the seal sleeve and shaft fit, it is tolerant of pump casing distortion. Whereas with traditional rotary seals, the perpendicularity controll by the pump casing, any distortion may therefore lead to reduced reliability and shaft sleeve fretting.
Non-Clogging Design
Unlike traditional seal designs AESSEAL® Pusher seal springs are not immersed in the process fluid. This improves seal life by preventing potential for hang up, in contaminated, abrasive,congealing, sticky, polymerizing, or waxy fluids.
Seal Flush Improvements
Erosion: traditional seals often use a single port flush injection. With a recirculation flush (such as Plan 11) any abrasive particles in the process stream accelerate through the flush port and impinge on the seal faces, often causing damage in the form of erosion.
The AESSEAL® CAPI-TXS utilizes an axial port to prevent seal face damage – A multi-port option flush is also available for light hydrocarbon services.

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