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Non-Asbestos Gasket Sheet are made of the frame materials including aramid fiber and synthetic mineral fiber after speci.....
Non-asbestos gasket sheet is crafted from aramid fiber, other inorganic fibers, oil-resistant synthetic rubber, inorganic filling materials, additives, and various components. These are rolled into a thin sheet using specialized equipment. The combination of these raw materials guarantees that the asbestos-free rubber sheet possesses superior resistance to high temperatures, aging, grease, and chemicals. It is extensively utilized as a sealing gasket material for joints in oil, air conditioning systems, other equipment, and pipe flanges.
Packing:
in wooden pallet of about 1000 kgs, 2000kgs net each.
At the same time, steel wire net inserted (coated graphite) is available.
Non-Asbesto jointing Sheet Date Sheet GB/T3985-2008
Item | NXB200 | NXB300 | NXB350 | NNY150 | NNY250 | NNY300 | NNY350 | |
Tensile strength MPa≥ | 6.0 | 8.0 | 11.0 | 8.0 | 10.0 | 12.0 | 15.0 | |
Aging Coefficient ≥ | 0.9 | |||||||
Density g/cm³ | 1.8~1.9 | |||||||
Compressibility % | 12 ± 7 | |||||||
Normal temperature Pliability | Bend 180 degree on the round column (the column diameter is 12 multiple sample thickness), No crack | |||||||
Rebound degree | 35 | 40 | 45 | 40 | 45 | 50 | 50 | |
Worm change Relaxation rate % ≤ | 45 | 45 | 45 | 40 | 40 | 30 | 30 | |
Dipped in IRM903 oil with 149℃ for 5 hours | Horizontal Strain MPa≥ | ---------- | 4.0 | 6.0 | 8.0 | 9.0 | ||
---------- | 30 | |||||||
Appearance change | No air bubble | |||||||
Dipped in ASTM fuel oil B with 21℃-30℃ for 5 hours | Thickness increasing% | ---------- | 0~20 | 5~25 | 5~20 | 5~20 | ||
Pliability | Bend 180 degree on the round column (the column diameter is 12 multiple sample thickness), No crack | |||||||
Cauterization to the metal material | ---------- | No Cauterization | ||||||
Normal temperature oil Airtightness | Medium pressure MPa | ---------- | 7.0 | 9.0 | 11 | 12 | ||
Airtightness request | Keep for 30min, no leak | |||||||
Nitrogen leakage rate [(ml/h.mm)] ≤ | 300 |