SpiralTrac®

Tough Protection for Rubbery Pumps in Harsh Conditions

SpiralTrac is a patented throat bushing engineered to control and transform the internal environment of seal and packing chambers in rotating process equipment. It's trusted globally for increasing reliability, reducing flush needs, and cutting housekeeping costs.

SpiralTrac is purpose-built for each application—engineers design hundreds of variations each year to suit specific pumps, seal types, or installation challenges.

Choose between two primary forms:

Plus, there’s an Adaptor option for tricky installations, and a wide range of Material Options to match temperature, wear, or chemical needs.

Through its internal spiral groove design, SpiralTrac redirects fluids to eject particulates and clean the seal or packing area—minimizing flush, reducing wear, and extending equipment life.

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SpiralTrac™ Packing Version (Version P)

What It Is

The SpiralTrac Packing Version is an engineered throat bushing designed to work with traditional packing in rotating equipment—no pump modifications required. It improves sealing performance, reduces maintenance, and delivers measurable cost savings.

Key Benefits

  • Cut Water & Flush Costs
    Reduce flush rates by 60–80% for immediate water and cost savings.

  • Extend Equipment Life
    Keeps abrasives away from the shaft and sleeve, protecting critical components and extending packing life.

  • Cleaner, Safer Operations
    Flush leakage is reduced to a clean drip, keeping the work area safe and tidy.

  • Easy to Install
    Installs from the gland side with a clearance fit. Works with virtually any rotating equipment—metal or composite, split or solid, single or multistage.

  • Custom Options
    Available in advanced materials such as PPS blends, PEEK blends, and bronze, with split or non-split versions to match your application.

How It Works

SpiralTrac uses a patented internal geometry to control fluid flow inside the stuffing box. This design channels abrasives and contaminants away from the packing and shaft, while reducing the amount of flush water needed. The result is longer packing life, less maintenance, and a cleaner, more efficient operation.

SpiralTrac™ Seal Version

What It Does

SpiralTrac for seals is a throat bushing that transforms the seal cavity environment—ideal for single, double, or split mechanical seals. It reduces contaminants, minimizes flush needs, and helps seals last longer with fewer failures.

VERSIONS:

F (Split) - Greatly reduced flush
N - Reduced/no flush in non-fibrous fluids
D - Reduced/no flush in fibrious fluids
P (Split) - Packing version
C - With drain for crystallizing media

Core Benefits

  • Cleaner Seal Environment
    Prevents solids and fibers from reaching the seal faces.

  • Extended Seal Life
    Increases seal life by 2–6× with less maintenance and downtime.

  • Reduced Flush Costs
    Allows for major reductions in flush water use—sometimes eliminating the need entirely.

How It Works

SpiralTrac’s spiral groove geometry channels flow inside the seal cavity to push particulates away from seal faces, circulate cleaner fluid, and—depending on version—vent air or drain residue. The result is a cleaner environment, less erosion, longer seal life, and greater reliability.

  • Type A - Counter bore fit, Type B - Bore fit, Type C - Axial split, Type I - Impeller side installation , Type E - Externally keyed

  • F (Split) - Greatly reduced flush, N - Reduced/no flush in non-fibrous fluids, D - Reduced/no flush in fibrious fluids, P (Split) - Packing version, C - With drain for crystallizing media

Technical Data ↓

Materials ↓

  • EN 1.4401 (316SS)
    416SS
    PTFE - Glass-Filled
    PTFE - Carbon Graphite-Filled Bronze
    EN 3.7035 (Ti)
    AWC800 - Red Polymer
    EN 2.4360 (Monel® K400)

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