The use and method of use of expanded PTFE tape

Expanded PTFE tape is a very novel and unique sealing material manufactured by unique processing technology. It is an ideal sealing material for chemical, pharmaceutical, petrochemical, food and beverage, electronics, electric power, metallurgy, shipbuilding and other industries. Various enamel linings, glass linings, plastic linings, rubber linings, graphite linings and stainless steel, titanium steel towers, heat exchange The sealing of the flange surface of the device, the reactor, etc. PTFE has a friction coefficient, chemical corrosion resistance, and good sealing performance. It can be used at a temperature of -250°C to +280°C and is suitable for sealing reaction kettles, steam generators, and various special-shaped tanks and barrels. This expanded PTFE tape is also called PTFE sealing tape. PTFE sealing tape retains the excellent chemical corrosion resistance of PTFE, and at the same time has excellent flexibility, compression strength, and excellent creep resistance and cold resistance. Flow characteristics, and has a high tensile strength. This kind of sealing tape is often pasted on the flange sealing surface conveniently, and there is almost no waste in use. In the flange sealing part under medium and low pressure, this kind of sealing strip groundgrass is an economical and practical sealing material.
Expanded PTFE tape Application:
1. Various enamel linings, glass linings, plastic linings, rubber linings, graphite linings, stainless steel, titanium steel and other reaction towers, reaction kettles and heat exchangers, etc. Flange sealing.
2. Flange sealing of various pipes and pipe fittings.
3. The surface processing accuracy is poor, the uneven area is large, the shape is irregular, and the bolt fastening force is not easy to use enough or the flange sealing surface of the large-diameter equipment should not be too large.
4. Sealing of strong corrosive media and fluids that cannot be polluted at all.
How to use PTFE tape:
Clean and dry the sealing surface, choose a PTFE tape of a certain width, tear off the protective paper of the adhesive tape, stick and press the sealing tape on the outer edge of the sealing surface, and the two ends are crossed at a certain bolt, and each other than the intersection point The remaining 2cm or more (note: when used on a flat flange, the two ends must be crossed and overlapped. When used on a grooved flange, they can be stacked in parallel and overlapped by more than 2cm.), close the corresponding sealing surface, and tighten evenly Each bolt, the intersection of two ends will also be pressed to the same thickness as other parts, and the intersection will never leak.
Expanded PTFE tape can be used for flange surface sealing of various pipes and pipe fittings, and is also used for irregular shapes, poor surface processing accuracy, large uneven areas, and bolt fastening force that is not easy to use enough or should not be too large Flange face seal for caliber equipment. There are also seals for strong corrosive media and fluids that cannot be polluted by the slightest. In addition, expanded PTFE tape is also used for various enamel linings, plastic linings, rubber linings, glass linings, graphite linings, stainless steel, titanium steel towers, Sealing of reaction kettle, heat exchanger, etc. flange surfaces.
Features of Expanded PTFE tape:
1: Strip adhesive, easy and fast to use, no waste of corners
2: Soft and malleable, capable of compensating for scratches and uneven surfaces.
3: On-site adaptation to various complex shapes
4: Long service life, high reliability, good sealing effect, no aging, long-term storage.
5: Except for metal sodium, it can withstand all chemical media, and it will not change when boiled in aqua regia
6: It fundamentally solves the common problems of PTFE materials --- creep and cold flow.
7: The higher the medium pressure, the greater the tightness.
Expanded PTFE tape has very good sealing performance, so under relatively high pressure, it still has super tensile strength, and it also has very strong impact resistance. There is almost no waste in the process of use. It can be very tightly attached to the tuyere of various devices, greatly improving the sealing effect, and also exerts an economical and practical application effect. It can withstand a wide range of temperature conditions and can withstand high temperatures above 280 degrees.

Sunpass specializing in the production of PTFE Joint Sealent with more than 40 year experience, has a high reputation and influence in the sealing industry at home and abroad. It has a modern professional factory building of 12000M2, and has more than 20 production lines for PTFE Producys, such as: expanded PTFE tape, expanded PTFE sheet, PTFE virgin sheet, PTFE gasket, PTFE rod, PTFE tube, etc. Products are widely used in petrochemical, oil and gas, electric power, smelting, mining, shipbuilding, paper making, food and machinery industries.
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