Oil-Resistance Asbestos Rubber Sheets
Natural Rubber Sheet is with good physical, mechanical characters and insulation property.Work in the environment with the high requirement of the electrical modulus at the temperature of
-35°C~+100°C in the dry air. Natural sheet can be applied to produce the buffer ring and seals, o-ring, rubber gasket, etc. It has excellent abrasion resistance, soldering resistance,excellent elastic ability and sealing.
Material:
Made of good long asbestos Fibre, oil-resistance synthetic rubber, heat-resisting packing material compound heating and compression molding it and used as sealing material in the joints of oil pipeline and sealing gasket used on automobiles motorcvcles, agricultural machines, engineering machinery engines
Working pressure: 1.5Mpa , Max working temperature: 150℃
Sizes: 4100 x 1500 x (0.5 – 6.0)mm, 2000 x 1500 x (0.5 – 6.0)mm
1500 x 1360 x (0.5 – 6.0)mm, 3810 x 1270 x (0.5 – 6.0)mm
1270 x 1270 x (0.5 – 6.0)mm, 1500 x 1500 x (0.5 – 6.0)mm
Color:Black,Red,Green,Blue,Grey,Brown
Surface:Smooth ,Textured, cloth marked or patterned
Hardness:40-75 shore A
Tensile Strength:2-20MPa
Physical Property of Asbestos Rubber Sheet | ||||||
GB/T539-1995 | ||||||
Item | XB450 | XB400 | XB350 | XB300 | XB200 | XB150 |
Tensile Strength Mpa ≥ | 19.0 | 15.0 | 12.0 | 9.0 | 6.0 | 5.0 |
Aging Coefficient ≥ | 0.9 | |||||
Burning Lose %≤ | 28 | 30 | 30 | |||
Density g/cm2 | 1.6-2.0 | |||||
Compressibility % | 12±5 | |||||
Rebound Rate | 45 | 40 | 35 | |||
Pliability | No Crack | |||||
Stress-relaxation %≤ | 50 | |||||
Steam Airtightness | With the temperature of 440-450°Cand the pressure of 11-12 Mpa,Keep for 30 min without puncture | With the temperature of 390-400°Cand the pressure of 8-9 Mpa,Keep for 30 min without puncture | With the temperature of 340-350°C and the pressure of 7-8 Mpa,Keep for 30 min without puncture | With the temperature of 290-300°C and the pressure of 4-5 Mpa,Keep for 30 min without puncture | With the temperature of 200-220°C and the pressure of 2-3 Mpa,Keep for 30 min without puncture | With the temperature of 140-150°C and the pressure of 1.5-2 Mpa,Keep for 30 min without puncture |
Working environment and Application
Working environment | Max pressure | Operating temperature | View sealable connection | Equipment |
Superheated fresh water, superheated and saturated steam | 4.5 MPa | -60℃ – to +450℃ | Connection type “tongue and groove”, “hollow-ledge”, “smooth” couplings are compacted at a pressure of fluid to 4 MPa | Vessels, valves, pipes, pumps and compressors, other units |
Salt solutions, water-based, gaseous and ammonia | 2.5 MPa | -40℃ to +150℃ | ||
Light and heavy petroleum products | 2.3 MPa | -60℃ to +175℃ |