Lock Cord PTFE Valve Stem Packing is a round-section, high-performance packing material manufactured from 100% PTFE (expanded PTFE). The material is designed to conform to stuffing bow or shaft surface irregularities, helping to provide an effective seal where damaged or misaligned flanges may be present. Suitable for use across a broad range of pressure, temperature and harsh environments, Lock Cord PTFE provides a versatile sealing solution for a range of industrial applications.
Key Features
- Manufactured from expanded PTFE
- 100% PTFE construction
- Round-section packing material
- Conforms to stuffing box and shaft surface irregularities
- Helps seal damaged or misaligned flanges
- Suitable for a broad range of pressure and temperature environments
- Suitable for harsh operating environments
- pH range: 0-14
- Operating temperature range from -200°C to 260°C
- Infinite shelf life
Technical Data
| Property | Value |
|---|---|
| Colour | White |
| Material | Expanded PTFE |
| Density | 0.8–1.3 g/cm³ |
| pH Range | 0–14 |
| Minimum Temperature | -200°C |
| Maximum Temperature | 260°C |
| Shelf Life | Infinite |
Chemical Compatibility
Lock Cord PTFE Valve Stem Packing is compatible with:
- Corrosive fluids
- Acids and alkali
- Solvents and oils
- Waste liquids
It is not compatible with:
- Molten alkali metal
- Fluorine, both liquid and gas
Applications
Lock Cord PTFE Valve Stem Packing is suitable for a range of industrial sealing applications, particularly where resistance to aggressive chemicals and fluids is required.
Compatible applications include:
- Corrosive fluids
- Acids and alkalis
- Solvents and oils
- Waste liquids
- Valve stem and stuffing box sealing
- Industrial equipment requiring PTFE packing
The material is not compatible with molten alkali metals or fluorine in liquid or gaseous form.
Available Sizes
AG supplies Lock Cord PTFE Valve Stem Packing in the following sizes:
| Diameter | Length |
|---|---|
| 2.5 mm | 15 m |
| 4.0 mm | 7.5 m |
| 5.5 mm | 4.5 m |
| 7.0 mm | 2.8 m |
- Other lengths and sizes are available upon request
Why Choose Associated Gaskets?
AG stocks a large range of specialised sealing products, along with thermal insulation and electrical products. Contact Associated Gaskets to discuss product availability, sizing and your sealing requirements.
