John Crane Mechanical Seals: Models, UK Availability, Cross-Reference

25 April 2026

Verified by Rachel Mayfield, Supply Chain Analyst - April 2026

John Crane is a UK-based mechanical seal manufacturer founded in 1917. John Crane specialises in cartridge mechanical seals. In the UK, John Crane is supplied through Slough.

Company overview

PropertyDetail
Country / regionUK / global
Founded1917
UK presenceSlough
Owner / parentSmiths Group plc
SpecialtiesCartridge mechanical seals, dry gas seals, pump seals, compressor seals
Typical industries servedOil and gas, refinery, chemical, water

Key John Crane mechanical seal models

The most-specified models from John Crane include: Type 21, Type 9, Type 2100, Type 8B1, Type 28, Type 5615, T80. Each model is a sealed solution for a specific service window - contact a UK seal specialist to confirm fit for your pump and duty.

Industries John Crane serves

John Crane mechanical seals are commonly specified in: Oil and gas, refinery, chemical, water.

John Crane UK availability and cross-reference

UK lead time on John Crane stock seals is typically 2-7 working days; built-to-order and custom designs are 4-12 weeks. Many John Crane models have direct equivalents from competing manufacturers - useful when stock is low or lead time is unacceptable. For a current UK quote on any John Crane model, a direct equivalent, or a refurbishment, use the form below.

Related

References

  1. John Crane — manufacturer
  2. BS EN 12756
  3. API 682

Where this data comes from: Supplier listings are verified against Companies House public records. Product specifications reference published ISO, BS, and DIN standards. Trade body data is sourced from official member directories.

Frequently Asked Questions

Where can I buy John Crane mechanical seals in the UK?

John Crane mechanical seals are supplied in the UK through Slough, plus independent seal specialists carrying multi-brand inventory. Lead time is 2-7 working days for stock items and 4-12 weeks for custom builds.

What models does John Crane make?

John Crane produces a range of mechanical seal models including: Type 21, Type 9, Type 2100, Type 8B1, Type 28, Type 5615, T80. The right model depends on your pump type, duty, and service conditions.

Who owns John Crane?

John Crane is owned by Smiths Group plc.

What industries does John Crane serve?

John Crane mechanical seals are widely used across: Oil and gas, refinery, chemical, water.

Are there equivalents to John Crane seals?

Yes. Most John Crane cartridge and component seals have direct dimensional and functional equivalents from competing manufacturers including John Crane, AESSEAL, EagleBurgmann, Flowserve, and Vulcan Seals. UK seal specialists routinely cross-reference between brands when stock is short or lead time is critical.

References