elastic packing
High-Performance Elastic Packing for Industrial and Commercial Applications
Elastic packing is a versatile sealing solution designed to withstand extreme conditions while maintaining flexibility and durability. Our premium elastic packing products are engineered for applications requiring superior compression recovery and long-term performance.
Key Features of Our Elastic Packing
- High-temperature resistance up to 1200°F (650°C)
- Excellent chemical compatibility with oils, solvents, and acids
- Superior compression recovery rate (85-95%)
- Available in various densities from 0.8 g/cm³ to 1.8 g/cm³
- Customizable dimensions to fit specific equipment requirements
Technical Specifications
| Parameter | Standard Grade | Premium Grade | Industrial Grade |
|---|---|---|---|
| Temperature Range | -40°F to 750°F (-40°C to 400°C) | -65°F to 1000°F (-54°C to 538°C) | -100°F to 1200°F (-73°C to 650°C) |
| Pressure Rating | 1500 psi | 2500 psi | 5000 psi |
| Tensile Strength | 800 psi | 1200 psi | 2000 psi |
| Compression Set | 15% max | 10% max | 5% max |
Elastic Packing FAQ
Q: What maintenance is required for elastic packing?
A: Elastic packing requires minimal maintenance but should be inspected periodically for wear. Check for proper compression and surface condition every 3-6 months in normal service or more frequently in extreme conditions. Lubrication may be needed depending on application, using compatible greases recommended by the manufacturer.
Q: How do I select the right elastic packing for my application?
A: Consider these factors when selecting elastic packing: operating temperature range, chemical exposure, pressure requirements, shaft speed (for rotating equipment), and media being sealed. Our technical team can help match the packing material (graphite, PTFE, aramid, etc.) and weave pattern to your specific needs based on decades of application experience.
Installation Guidelines
- Clean the stuffing box thoroughly before installation
- Measure and cut packing rings to exact length (butt-cut, not angled)
- Stagger joints by 90° between layers
- Tighten gland evenly in stages (never fully compress in one step)
- Allow for proper run-in period with gradual tightening
Available Sizes and Configurations
| Standard Size (inches) | Metric Equivalent (mm) | Recommended Applications |
|---|---|---|
| 1/4" x 1/4" | 6mm x 6mm | Small pumps, valves |
| 3/8" x 3/8" | 10mm x 10mm | Medium duty pumps, mixers |
| 1/2" x 1/2" | 12mm x 12mm | Large pumps, compressors |
Q: How does elastic packing compare to mechanical seals?
A: Elastic packing offers several advantages over mechanical seals: lower initial cost, easier installation/repair, better tolerance to shaft misalignment, and ability to handle solids in the medium. While mechanical seals typically have lower leakage rates, modern elastic packing with proper break-in can achieve near-zero emissions. The choice depends on application requirements, operating conditions, and maintenance capabilities.
Industry Applications
- Oil & gas: Wellhead equipment, valves, pipelines
- Chemical processing: Reactors, agitators, transfer pumps
- Power generation: Boiler feed pumps, turbine seals
- Water treatment: Centrifugal pumps, mixers
- Marine: Stern tube seals, propeller shafts
Performance Comparison Chart
| Property | Our Elastic Packing | Industry Average |
|---|---|---|
| Service Life | 18-24 months | 12-18 months |
| Leakage Rate | <5 drops/min | 10-15 drops/min |
| Shaft Wear | 0.002"/year | 0.005"/year |