Non-asbestos joint sheet
Non-asbestos jointing sheet series
Non-Asbestos Jointing Sheet are made of the frame materials including aramid fiber and synthetic mineral fiber after spe.....
Non-Asbestos Jointing Sheet are made of the frame materials including aramid fiber and synthetic mineral fiber after special proportioning with natural rubber or oil-resistant rubber binders and adding other functional additives and compression molding it.
1) Non-asbestos jointing sheet series include: NXB200, NXB300, NXB350
Uses: Substitution of corresponding models of asbestos jointing sheet ,Used for the equipment in water,steam,etc.and used as sealing material in the joints of pipeline
Working pressure : 1.5～8.0 MPa ,Working temperature : 200 ～350℃
2) Oil-resistance non-asbestos jointing sheet series include: NNY150, NNY250, NNY300, NNY350
Uses: Substitution of corresponding models of asbestos jointing sheet , Mainly used as the aviation liquid the motive's kerosene, lubricant, the fuel oil and cold air system to join together the seal completely of place the sealing gasket material.
Working pressure : 7.0～12 MPa ,Working temperature : 150 ～350℃
Available Sizes: Thickness: 0.5 to 5mm
1500 x 4500mm, 1500 x 1500mm
The other size is optional or according to the requirements of customers.
At the same time, steel wire net inserted (coated graphite) is available.
Packing: in wooden pallet of about 1000 kgs, 2000kgs net each.
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 | |||||||