Mechaflex T.R. CSS

Single balanced pusher seal

ProSEALĀ® CSS Series is a single balanced pusher seal for general services,primarily for application in the petrochemical and chemical industry.
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T.R Series

T.R Series with single and double balanced pusher seal variations for general services, primarily for application in the petrochemical and chemical industry

These seals are most commonly used in Centrifugal High Duty Pumps, Centrifugal API Process Pumps, Centrifugal General Purpose Pumps, and Positive Displacement Pumps.

Design Features

  • Single balanced pusher seal design
  • Complete cartridge for ease of installation
  • Heavy duty seal faces designed for zero leakage
  • Multiple spring design for uniform load, shorter overall length and larger axial displacement
  • Stationary spring design with minimum rotating mass for high sliding velocity capability
  • Special design with pumping device for forced circulation, better cooling efficiency and better heat removal capability
  • Spring protected design. Eliminating exposure of spring from the process fluid


-50 C to 220 C
Vacuum to 25 bar
Sliding Velocity
Up to 25 m/s / 5000 fpm
25 mm to 200 mm

Seal Application

  • Centrifugal Heavy Duty Pumps
  • Centrifugal API Process Pumps
  • Centrifugal General Purpose Pumps
  • Positive Displacement Pumps

Industrial Application

Oil & Gas Production
Petroleum Refining
Pulp & Paper
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