Non Compression packing compared to mechanical seals

NON COMPRESSION PACKING

  • Leak Free
  • Long life span
  • Can run dry
  • Start / stop frequency has no detrimental effect
  • Can operate without a flush or cooling system
  • User friendly and easy to change / install
  • In most instances maintenance and replacement can be done on site
  • Can be used for slurries with little effect on packing
  • Can be used in most chemical applications
  • Relatively cheap and cost effective
  • One packing can be used for multiple applications
  • Pump does not have to be stripped to change packing

MECHANICAL SEALS

  • Leak Free
  • Long life span
  • Not able to run dry
  • Start / stop frequency is limited in certain instances
  • Most require a flush or cooling system
  • Specialist required to change / install
  • In most instances maintenance and replacement has to be carried out off site
  • Slurries have a detrimental effect on all but specialised seals
  • Can be used in most chemical applications
  • Expensive and often not cost effective
  • Specific to application type
  • Pump has to be stripped in order for it to be changed or serviced