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Mechanical Seals for Grundfos: CR, CRN & CRI Series Pumps

These cartridge type mechanical seals come in 3 different shaft sizes to suit specific models.

  • 12 mm CR (CR 1 / 3 / 5 )
  • 16 mm CR ( CR 10 / 15 / 20 )
  • 22 mm CR ( CR 45 / 64 / 90 )

The CR range of pumps provide a complete range of pump solutions for all applications, industrial and domestic.

There are eleven flow sizes, capable of producing up 50 bar pressure.

The applications that can be covered are reverse osmosis systems pumping acids and alkaline process water systems and seawater systems.

We can provide mechanical seals to suit your application with a variety of face and elastomer combinations to maximize the seal life

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T21 Metric & Imperial Mechanical Seals


It has evolved into an Industry standard mechanical seals design for OEM standard applications in centrifugal pumps, rotary  and turbine pumps,compressors, chillers and other rotary equipment.

It is also used commonly used in by the water and waste water and waster systems industries such as waste water treatment, potable water and HVAC.

The automatic adjustment compensates for abnormal shaft and end play and run-out, primarily sealing wear and machinery tolerances,leading to improved sealing life.

Used in most pump types like Southern Cross, KSB/AJAX, Regent, Flowserve TKL Hydro Titan pump ranges

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Seals to Suit These Brands

  • AES Seal®
  • Chesterton®
  • Eagle Burgmann®
  • Flowserve®
  • Flygt®
  • Grindex®
  • John Crane®

24/7 Services & Free Advice

  • Design, manufacture and distribute mechanical seals worldwide
  • Technical Support and Info
  • Comprehensive seal reconditioning

High Quality Seals at Best Prices

  • Extensive Range of stock and ancillary equipment.
  • We stock a large range of Gland Packing.

Mechanical Seals for:

  • Centrifugal Pumps
  • Slurry Pumps
  • Submersible Pumps
  • Mixers & Agitators 
  • Compressors
  • Autoclaves
  • Pulpers