MLS Series Packing | John Crane Packing
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Mechanical Lip Seal

Triple Lip Seal Designed to seal positive displacement pumps moving high viscosity fluids


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  • California Residents: PROPOSITION 65 WARNING
  • The Type MLS-1 Cartridge Seals designed for rotary positive displacement pumps handling high-viscosity fluids.
  • The triple PTFE seal design is an effective alternative to packing or single mechanical seals.
  • The design allows the sealing elements to run dry and function leak-free at low RPM with recurring startups.
  • The self-lubricating sealing elements are manufactured from PTFE, and are incorporated in a sealing system that consists of three independent, sequential sealing chambers.
  • The cartridge design includes a Silicon Carbide sleeve, 316 stainless steel gland and flush ports and locating clips, which are released after setting the shaft sleeve to the shaft.

Recommended Applications

  • Process pumps
  • Mixer and agitators
  • Gearboxes
  • Other rotating equipment

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