Types of PTFE pads

Shandong Tanglian always adhere to the "quality-oriented",with high quality products and perfect after-sales service to win the trust of our customers and high praise, the products are sold well at home and abroad. The following is an introduction to the types of PTFE gaskets:

Pure PTFE gaskets: PTFE gaskets are also called PTFE gaskets or Teflon gaskets made of PTFE rods and plates mechanically turned or molded into flat gaskets, V-shaped gaskets, piston rings, ball valve gaskets, etc. They have good characteristics such as corrosion resistance, aging resistance and non-conductivity.

Polytetrafluoroethylene pH value of 0-14 (except for molten alkali metals and free fluorine). It can have good mechanical strength between -100℃ and 100℃. Note: At temperatures below -185°C. PTFE gaskets will become brittle.

Pure PTFE gasket is a clean sealing product that will not contaminate any substance it comes into contact with, and can be widely used in various industries in food, medicine and strong corrosive occasions.

Modified PTFE gasket (also known as filled PTFE gasket): Modified filled PTFE gasket is made by adding a certain amount of fillers, such as glass fiber, quartz, barium sulfate, graphite, carbon fiber, etc., to PTFE resin, which is mixed uniformly at high speed and then molded with molding, and then made by high temperature sintering.

It has excellent compression, recovery and sealing properties. Its unique properties and advanced characteristics exhibit sealing and torque retention.

It overcomes the shortcomings of traditional PTFE in terms of cold flow and creep properties of the material, and at the same time it maintains bolt preload better than traditional PTFE, which improves the durability of the seal and reduces the maintenance of the flange.

Advantages of filled modified PTFE gasket: low friction coefficient, good compression strength, improved wear resistance; making it much more than traditional PTFE, which improves the environment and saves cost.

Widely used in chemical industry, machinery, paper, food, low temperature liquid gas, pharmaceutical industry, etc., and for the sealing field of the environment that does not allow pollution.

Expanded PTFE gasket, also known as expanded PTFE gasket, expanded PTFE gasket or soft PTFE gasket, is developed from 100% PTFE polytetrafluoroethylene through a special process, with excellent flexibility, excellent compliance and molding ability, but also has a high tensile strength, resistance to creep, high and low temperature, corrosion resistance, resistance to cold flow, resistance to aging.

Can be stored for a long time without deterioration, non-toxic and non-polluting, and by the countless homogeneous fine soft and strong multi-directional fiber composition, with a unique high-density fiber organization, pressure fiber will be entangled with each other into the organization of a more compact and uniform, impermeable, impermeable, stop leakage performance is good.

In the harsh corrosive environment and high temperature, but also to maintain a very good close state, in a very small preload, even under pressure changes in the environment and can withstand considerable internal pressure, very suitable for rough or uneven wear and tear and fragile glass surface flange, temperature change sealing occasions.

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