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Dayton 2WV86 mechanical shaft seal component

Dayton

Dayton 2WV86 Mechanical Shaft Seal

SKU CH-QACQ-R25ZV MPN 2WV86

Mechanical shaft seal fits 7/8 in turbine pump shafts using Buna-N, carbon and ceramic components

  • TypeDrain Components
  • Fits 7/8 in shafts for secure sealing
  • Buna-N, carbon and ceramic materials resist wear
  • Mechanical design suits turbine pump service
  • Includes seal and seat for complete installation
  • Dayton 2WV86 model ensures exact replacement

Shaft Seal for Turbine Pumps

The Dayton 2WV86 is a mechanical shaft seal designed for turbine pumps with a 7/8 inch shaft diameter. It suits maintenance technicians and facility engineers who need a direct replacement seal for compatible Dayton series equipment. The assembly includes the seal, seat and gasket components in a single package. Buna-N, carbon and ceramic materials handle typical fluid and temperature conditions in regenerative turbine applications.

Upgrading Worn or Leaking Seals

This seal replaces an original mechanical shaft seal that has begun to leak, score or lose compression after extended service. The jump is worth it when pump efficiency drops, fluid appears at the shaft exit or routine inspection reveals hardened gasket material. It restores the sealing interface without requiring a full pump rebuild. The part is not suited for pumps with different shaft diameters or non-Dayton series turbine models.

Straightforward Bench Installation

Installation proceeds by removing the pump casing, sliding the old seal components off the shaft and pressing the new seat and seal into place with clean hands or a soft driver. The included seat mates with the supplied seal face so no separate lapping is required. Common issues arise when the shaft surface is pitted, the housing bore is corroded or the seal is cocked during press-in, causing immediate weep. Clean the shaft and bore thoroughly before assembly.

Highlights

  • Fits 7/8 in shafts for secure sealing
  • Buna-N, carbon and ceramic materials resist wear
  • Mechanical design suits turbine pump service
  • Includes seal and seat for complete installation
  • Dayton 2WV86 model ensures exact replacement

Specifications

TypeDrain Components
BrandDayton
Model2WV86

Questions about this item

What shaft diameter does the 2WV86 mechanical seal fit?

This seal fits a 7/8 in shaft diameter and is designed for turbine pump applications.

How is the 2WV86 shaft seal installed, and what step is often missed?

Install the ceramic seat squarely in the housing bore, then slide the carbon seal face onto the shaft; the step often missed is lubricating the Buna-N elastomers before assembly to prevent damage.

Which wear components of the 2WV86 will need replacement later?

The carbon seal face, ceramic seat, and Buna-N elastomers are the wear items that will require replacement when leakage appears.

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