Mission Mechanical Seal

Mechanical Seal Introduction

The mechanical seal is one of the key components of sand pumps. It is dynamic sealing device that prevents fluid leakage from the pump volute along the pump shaft. As precise and complex assemblies, they play a critical role in various pump systems.

Working Principle of Mechanical Seal

Mechanical seals achieve axial face sealing and prevent fluid leakage by maintaining tight contact between the end faces of the stationary seat and the rotating ring, under the combined action of fluid pressure and spring force from the compensation mechanism.

MAGNUM CENTRIFUGAL Series Sand Pump Mechanical Seal Parts List

2500 SUPREME Series Sand Pump Mechanical Seal Parts List

Classification of Mechanical Seals

1. Mechanical seals can be classified into single-face, double-face and multi-face types according to the number of friction pairs between the rotating and stationary seals.

2. Double-face seals offer superior leakage control performance but require higher installation accuracy.

3. Most modern double-face seals adopt a cartridge seal design. This type integrates components such as rotating seal, stationary seal, compensation mechanism, seal sleeve and sealing gaskets into single unit.

This design eliminates the need for separate component installation and allows complete assembly and disassembly, simplifying installation and reducing the risk of human error. However, cartridge seals feature a relatively complex structure, large size and high cost.

Xi'an TR Solids Control adopts advanced technology and mechanized production methods to manufacture replacement parts for the Mission Magnum Centrifugal and 2500 Supreme sand pumps under the Tianrui brand. Our sand pump parts are fully interchangeable with original parts, and are comparable in appearance and quality. All products meet American API standards and hold API certifications.