Troubleshooting Mechanical Seals – Heat Cracking or Checking – Part 8

from Chesterton
Posted 3/22/2004

SEAL FACE – HEAT CHECKING       SEAL FACE – HEAT CHECKING

SYMPTOMS:

• Heat cracking or checking

CAUSES:

• Exceeded PV limits of seal face materials
• Dry running
• Excessive heat from product

FAILURE MODES:

• Lack of seal face lubrication
• Exceeded limits (speed, temperature, pressure)
• Inadequate environmental controls

SOLUTIONS:

• Operate within seal limits
• Eliminate dry running conditions
• Proper use of environmental controls