Corrugated flexible graphite tape is for sticking to metal-toothed or wavy gaskets. Manufacturers make corrugated flexible graphite tape from graphite rolls. High-precision lathes cut the rolls into strips. Then, special pattern rollers press the strips into a corrugated shape. It is more precise than traditional graphite cutting. It damages the graphite rolls less. The cutting edges are smooth and burr-free.
Applications:
Graphite corrugated tape is for metal gaskets with toothed or wavy edges. It is a surface adhesive. When used as packing for a stuffing box, it can be directly wound around the shafts of pumps and valves. After reaching a certain size, a gland can compact it. It is very convenient for small-diameter valves and emergency repairs. It eliminates the need for various-sized packing spare parts. Media and situations where conventional materials are hard to adapt use it. These include hot water, high-temp, and high-pressure pumps and valves. Also, hydrogen, ammonia water, and organic solutions.
Graphite grades:
Item Nuclear grade Industrial grade
Density tolerance g/cm³ ±0.05 ±0.06
Graphite content ≥% 99.5 98/99
Tensile strength ≥MPa 5 4
Compression rate ≥% 30 30
Rebound rate ≥% 15 15
Sulfur content ≤% 700 1200
Chlorine content ≤% 25 50
Stress relaxation rate % 10 10
Burn-off rate ≤% 0.5 2.0
