Expanded polytetrafluoroethylene sealing tape is a very novel and peculiar sealing material material manufactured using a unique processing technology. It is a continuous white pure polytetrafluoroethylene product with excellent flexibility, compression resilience, creep resistance, high and low temperature resistance, as well as excellent corrosion resistance, anti-aging, and self-lubricating properties. Excellent sealing performance and extremely convenient installation and use, it is an ideal sealing material for industries such as chemical, pharmaceutical, petrochemical, food and beverage, electronics, power, metallurgy, and shipbuilding
Technical parameters:
Medium acid Alkali Solvent Most chemical media of gases
Temperature resistance -240~260 ° C
Use pressure<20 MPa
PH 0-14
Density grade A/B: 0.70/0.80g/cm3
1.0~1.5 g/cm3 can be requested
The purpose of sealing tape:
1. Sealing of various enamel lining, glass lining, plastic lining, rubber lining, graphite lining, as well as flange surfaces of stainless steel, titanium steel towers, heat exchangers, reaction vessels, etc.
2. Sealing of flange surfaces for various pipelines and pipe fittings.
The flange surface sealing of large-diameter equipment with poor surface processing accuracy, large uneven areas, irregular shapes, and difficulty in using sufficient bolt tightening force or should not be too large.
3. Sealing of highly corrosive media and fluids that cannot be contaminated at all.
Usage:
Clean and dry the sealing surface, select a certain width of expanded polytetrafluoroethylene sealing tape, tear off the protective paper of the adhesive tape, and press the sealing tape onto the outer edge of the sealing surface. The two ends should overlap at a certain bolt point, with a margin of 2cm or more outside the intersection point (note: when used on flat flanges, the two ends must overlap. When used on groove flanges, they can overlap in parallel, with a margin of 2cm or more). )Close the corresponding sealing surface and tighten all bolts evenly. The intersection of the two ends will also be pressed to the same thickness as other parts, and there will be no leakage at the intersection.
Specifications, dimensions, width (mm): 3 5 6 7 8 9 10 14 15 17 20 25 30 40 50 100
Thickness (mm): 1.5 2 2.5 3 4 5 6 10
Length of each roll (m) 30 25 20 15 10 5 Note: The length of each roll can also be specified by the customer.