Performance and use of tetrafluoro asbestos pad

Chemical anti-corrosion of PTFE coated gaskets: using its resistance, the application of fluoroplastics in resistance is not limited to the manufacture of sealing rings, gaskets and pipe fittings, but also grows in other pipes that need corrosion resistance. Teflon pad is a sealing material that has been used very much in recent years.

Chemical anti-corrosion of PTFE coated gaskets: using its resistance, the application of fluoroplastics in resistance is not limited to the manufacture of sealing rings, gaskets and pipe fittings, but also grows in other pipes that need corrosion resistance.

 

PTFE coated gasket type structure

1. S type-sectioning type:
The sectional cladding gasket is a circular sheet with a thickness of 0.8~1mm, which is cut from the center of the outer thickness, and the core material is put into the incision, and the incision is about 1.5~2mm from the inner hole;

2. M type-machining type:
Machined clad gasket, the inner diameter of the encapsulating layer can be consistent with the inner diameter of the flange to prevent the fluid from generating eddy currents at the flange. Due to machining into a rectangular section, the gap after the core material is placed is smaller than that of the sectioned section, so the internal air expansion is also small and the sealing performance is better;

3. Type F-Folding Type:
Folding type coated gasket, it is by the thickness of 0.4~0.8mm strip-shaped polytetrafluoroethylene film, with heat sealing method will be two ends after the package in the ring of the core material outside the U shape, manufacturing is simple, suitable for large size flange seal.

 

Performance of PTFE coated gasket

Teflon pad is a sealing material that has been used very much in recent years. The material can resist the erosion of acidic or alkaline substances, and can also work in a high temperature environment. It is difficult to have chemical reactions in various solvents. It is especially used in the medical industry. Under normal temperature, the material can work in an environment of 250 degrees Celsius, and can also work in a low temperature environment with good mechanical toughness, when the working temperature slows down to -196 degrees Celsius, it can also maintain the elongation capacity of the 5%, even if it has the ability of plastic products, but it will not be like plastic products, due to the greater impact of seasonal changes, with non-adhesion ability. The selected production of raw materials are pollution-free raw materials.

Teflon-coated gaskets are made of teflon-coated rubber pads, etc. Mainly used as strong acid, halogen and other corrosive liquids or avoid pollution of food, medicine and other flanges, tower tank, all kinds of machinery and equipment such as sealing gasket. It has excellent corrosion resistance and is suitable for most chemicals, especially for sex, strong acid and alkali and strong corrosive medium (except melting alkali metal and high temperature fluoride). It is widely used in chemical, petrochemical, food and other industries. The material can resist the erosion of acidic or alkaline substances, and can also work in high temperature environment. It is difficult to cause chemical reactions in various solvents. At present, it is widely used in the medical industry. Under normal conditions, the material can work at 250 degrees Celsius.