PTFE packing is a high-performance sealant manufactured from polytetrafluoroethylene filaments. They are available as pure PTFE packing or PTFE graphite packing.
With the high-quality PTFE packing available in the market, both personnel and consumer safety is always guaranteed.
Most PTFE packing is braided for an effective and flexible sealing solution. The various PTFE filaments form highly durable yarn. Normally, the interlocking yarns give them strong characteristics.
Generally, these Teflon packings are popular for:
- High chemical resistance
- Self-lubricating property
- PTFE packing temperature rating is wide for both cryogenic and high temperature
- Offer non-contaminating property
- Withstand High pressure and linear speed without wearing
Advantages of PTFE Packing
Non-contaminating Properties – PTFE packing offer hygienic packing due to the intern and heat resistance properties of PTFE material. It will not contaminate any product. This is in addition to the non-stick property.
Chemically Inert – polytetrafluoroethylene packing is chemically inert and does not react with most acids, bases, or solvents.
Low Coefficient of Friction – therefore, it offers a self-lubricating feature.
How to Choose Polytetrafluoroethylene Packing
Currently, there are many types of PTFE packing available in the market. You can choose the pure grade or improved version depending on your specific applications. Some common options include:
Pure PTFE Packing – they are made from pure polytetrafluoroethylene material. They do not have any form of lubrication.
PTFE Graphite Packing – these polytetrafluoroethylenes have an addition of graphite in their composition. Usually, graphite lowers the friction coefficient of PTFE material further.
PTFE vs. Graphite Packing
Let’s compare the two packagings:
|Variable to Compare
|· Synthetic material
· Pure form is black
|· Naturally occurring pure carbon
· Pure form is white
|· Superior strength with better lubricating properties
· Poor conductor of heat and electricity
· Chemically inert
|· Low coefficient of friction
· May conduct heat
· Resistant to most chemicals such as acid, gases, etc.
PTFE Packing Application
You can use the Teflon packaging as PTFE packing seals, PTFE packing rings, PTFE packing glands, PTFE for valve packing, or PTFE packing ropes.
PTFE packing is best for both rotary and linear uses.