Because of its special characteristics and high chemical/temperature tolerances, PTFE hose is a popular choice in smooth-bore high-pressure and ultra-high pressure applications.
When a PTFE hose fails, it can cause a lot of trouble in the process line. Regular inspection and maintenance can reduce downtime, save you money, and help ensure safety.
dimensions of polytetrafluoroethylene hose
PTFE hose is a hose type that is used in industrial applications. It is a synthetic material that’s hydrophobic and resists warping and deterioration at high temperatures. It also has excellent chemical resistance and low permeability, making it ideal for certain industrial processes.
This hose has a very wide working temperature range, which is great for most fluids and ambient conditions. It also has an extremely low coefficient of friction, (0.05 to 0.20), which provides a non-stick surface.
It is FDA-approved for pharmaceutical and food use. It is also shock-resistant, which means that it can withstand continuous flexing, vibration and pressure impulsing without causing damage to the hose.
Finally, PTFE is chemically inert, so it will not break down or deteriorate while in use. This is one of the reasons it is so popular for use in certain industrial applications, including fuel lines.
PTFE is a hose material that is extremely durable and resistant. It can be found in many different types. It is important to save this hose correctly, so that it can perform well in your industrial application. This involves cutting the hose to the correct length, connecting the appropriate end connections, and using professional Crimping Equipment.
Causes of PTFE hose bursting
A variety of factors can cause a hose to fail in service. These can include improper component selection, incorrect assembly procedure, or poor installation practice.
This can be especially true for PTFE hose. This material can be abrasive, and is therefore susceptible to internal tube erosion. This causes the inner wall of the hose to crack and clog the bore.
Another common problem is the rupture of a hose cover. This may be due to incompatible fluids that have permeated the hose, or it may be a result of compressed gas that has diffused into the hose.
Alternatively, the hose cover may be damaged by an external object such as sharp corners, brackets, or the wrong size clamp. In any event, the hose should be replaced with a new one.
Here are some of the most common causes for PTFE hose failures
Abrasion (internal & external) – Abrasion causes the PTFE and corrugations to wear away. This can cause abrasion tear-outs in braid strands or ruptures in reinforcement cords.
High working pressure and shock pressures can also cause the hose to burst. It is recommended to check the maximum occurring working pressure and any shock pressures before fitting a PTFE hose.
the main raw materials used in PTFE hose
The main raw materials used to make PTFE hose are polytetrafluoroethylene (PTFE) and fluorinated ethylene propylene (FEP). These chemical compounds are engineered to offer a variety of useful properties, including low group velocity dispersion, high melting point, non-reactivity to moisture, and resistance to deterioration.
There are two ways to make PTFE: you can add it to water and then stir it in a reaction chamber or you can polymerize it in a dispersion procedure that makes the material into small beads. The beads are then filtered or soaked in chemicals to form a PTFE powder.
It can also melt and be used as a finish or coating, depending on the application. It is a good choice for heat-resistant coatings because of its low permeability.
In addition, PTFE is more resistant to water than rubber, meaning it won’t become clogged with debris. It is also less likely to release smoke, making it ideal for enclosed spaces in which people or equipment might be inhaling fumes or vapours.
PTFE hose is often more cost effective than other types of plastic hose, like rubber. Its chemical resistance means it won’t break down at high temperatures. This is an important feature for certain industries. It is also very lightweight and easy to handle, making it the ideal material for many different applications.
