Overview
The EnviroSeal PI3000RS4000(ESC)2L1.000 is a split SpiralTrac bushing engineered for in-place installation in centrifugal pump stuffing boxes. Designed for a 3.000″ shaft operating under right-hand (CW) rotation in a pump with 4.000″ stuffing box bore, this split device replaces the bottom two rings of packing and a 1.000″ long lantern ring. The SpiralTrac Environmental Controller is a unique, patented throat bushing specially engineered to transform and control the internal stuffing box environment in rotating process equipment.
Key Features
- Split Design: Allows installation without full pump disassembly—ideal for field retrofits and maintenance.
- Carbon Graphite PTFE Material: Made of Carbon Graphite Filled PTFE (ESC), offering wear resistance and chemical compatibility across diverse industrial fluids.
- Spiral Geometry: 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.
- Packing Version: Configured for use with packing systems, replacing traditional compression packing rings for superior performance.
- Right-Hand Rotation (CW): Suitable for pumps rotating clockwise when viewed from the motor end toward the impeller.
Technical Specifications
| Shaft Size | 3.000 inches |
| Stuffing Box Bore Diameter | 4.000 inches |
| Material | Carbon Graphite Filled PTFE (ESC) |
| Configuration Type | Split (S) – for in-place installation |
| Packing Rings Replaced | 2 rings + 1.000″ lantern ring |
| Rotation Direction | Right-Hand (CW / Clockwise) |
| Pressure Rating | 100 PSI / 6.9 Bar (split devices) |
| Version | Packing Version |
| Manufacturer | EnviroSeal Engineering Products Ltd. |
| Origin | Canada |
Typical Applications
SpiralTrac has set the standard in industrial process applications worldwide for increasing equipment reliability, decreasing housekeeping cost and reducing flush requirements. This bushing is commonly used in:
- Centrifugal pump split-case designs (e.g., Goulds 3410 pumps)
- Single-stage and multi-stage pump systems with packing seals
- Petrochemical, refinery, and process water applications
- HVAC circulation and chilled water systems
- Pulp and paper mill equipment
Compatibility & Replacements
Compatible With
- Goulds 3410 XL split-case pump (packed box variant)
- Pump systems with standard compression packing configurations
- Mechanical seal systems (when using Seal Adaptor option)
- Centrifugal pumps with 3.000″ shaft and 4.000″ stuffing box bore
- Right-hand rotation (CW) pump designs
Replaces / Drop-In Replacement For
- Standard compression packing rings (bottom 2 rings + lantern ring assembly)
- Earlier SpiralTrac models for same shaft/bore configuration
- OEM-supplied packing systems for compatible pump models
Works With
- Chesterton compression packing systems
- Centrifugal pump fluid circulation
- Industrial process water, oils, and compatible chemical service fluids
- EnviroSeal engineering support and custom design services
Split design for in-place installation—no pump disassembly required
Carbon graphite PTFE (ESC) material resists wear and chemical attack
Patented SpiralTrac geometry expels particulates and extends seal life
3.000″ shaft, 4.000″ bore—right-hand rotation configuration
Packing version replaces 2 rings plus 1.000″ lantern ring
100 PSI rated split bushing for reliable centrifugal pump performance
