Adhesive knitted tape made of expanded mineral graphite yarns
The GR48PA is a knitted tape made from expanded mineral graphite yarn, processed with a special technique, and then reshaped to obtain a tape on which a double-sided adhesive tape is applied. It is a product available in different widths, typically those from the inch series ranging from 1/4" to 1 1/2", which is flexible and easily conformable, suitable for being applied to the sealing surfaces of flanges as an aid to the main seal or used alone for low-pressure applications.
Applicable for sealing reactor flanges, tank covers, manholes, handholes, and heat exchangers. Expanded graphite is chemically inert to a wide range of aggressive chemicals, such as acids, bases, and solvents, with the exception of oxidizing fluids. This property makes it suitable for use in corrosive environments, typical of the chemical, petrochemical, and gas industries. Expanded graphite can withstand very high temperatures, up to around 650°C in an inert atmosphere or with steam, and 450°C in air, without losing its mechanical properties. This resistance makes expanded graphite perfect for applications in high-temperature environments.
P bar | Ibf/in2 | Vm/S | f/pm | pH | T°C | T°F | |
---|---|---|---|---|---|---|---|
40 | 600 | 0 ÷ 14 | -200 ÷ 450 / 650 | -330 ÷ 840 / 1200 |
Never use the product to the maximum temperature and pressure associated. Consult the manufacturer for further information
With weakly oxidizing agents and hot air the temperature must be limited to 450 ° C
With steam and non-oxidizing fluids the temperature must be limited to 650 ° C
Graphite and carbon cannot be used with oxidizing fluids
The packing shall be used with wiper anti-extrusion rings with dynamic applications and with those in valves over 100 bar