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Dayton

Dayton O-ring kit with mechanical seal for T31 pumps

SKU CH-05PR-3QBFS

O-ring kit with mechanical seal fits Dayton T31 straight-centrifugal pumps and includes thru-bolt and casing O-rings in Buna-N, carbon and ceramic

  • Compatible with Dayton T31 straight centrifugal pumps
  • Buna-N, carbon and ceramic gasket materials resist wear
  • Includes two thru-bolt O-rings, casing O-ring, mechanical seal and seat O-ring
  • Matches Grainger part numbers 4UP50 and 4UP51
  • New Dayton O-ring kit for reliable pump sealing

Kit Contents

This Dayton kit supplies the sealing components required for T31 straight-centrifugal pumps. It includes two thru-bolt O-rings, a casing O-ring, a mechanical seal and a seal-seat O-ring. The parts are made from Buna-N, carbon and ceramic materials. The kit matches Grainger part numbers 4UP50 and 4UP51.

Who This Suits

Maintenance teams repairing Dayton T31 pumps will find every seal in one package. Technicians working on other pump models or brands cannot use these parts. Buyers needing individual O-rings or different material grades should source them separately.

Critical Specification

The mechanical seal and O-rings are engineered specifically for the T31 pump series. Using this kit on any other pump type will result in improper fit and leakage. Verify the pump model before ordering.

Highlights

  • Compatible with Dayton T31 straight centrifugal pumps
  • Buna-N, carbon and ceramic gasket materials resist wear
  • Includes two thru-bolt O-rings, casing O-ring, mechanical seal and seat O-ring
  • Matches Grainger part numbers 4UP50 and 4UP51
  • New Dayton O-ring kit for reliable pump sealing

Specifications

BrandDAYTON

Questions about this item

Which pump models does the 26KJ17 kit fit?

The kit is compatible with Dayton straight-centrifugal pumps that cross-reference to Grainger part numbers 4UP50 and 4UP51

Can I reuse the old mechanical seal seat with the new Buna-N and carbon-ceramic components?

The kit includes a fresh seal seat O-ring; install the new seat rather than reusing the old one to maintain the correct sealing surface

How do I confirm the repair is holding pressure after reassembly?

Pressurise the system and verify zero leakage at the casing joint and around the mechanical seal faces

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