Asbestos sheet
Oil-resisting Asbestos gasket sheet
Aohong supply oil-resisting asbestos gasket sheets for sealing pipelines, engines, and machinery in petroleum, chemical,.....
Oil-Resisting Asbestos Gasket Sheets, also called Oil-Resistant Asbestos Sheet or Oil-Resistant CAF Jointing Sheet, are produced from asbestos fiber blended with oil-resistant synthetic rubber and heat-resistant fillers. The sheets are formed by a compression molding process that creates uniform density and excellent sealing properties. These materials are designed for environments exposed to oils, fuels, and petroleum-based media, ensuring reliable sealing in industrial systems.
Features and Specifications
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Material Composition: Long asbestos fibers, oil-resistant rubber, and heat-resistant packing materials.
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Manufacturing Process: Compression molded to achieve stability and resistance to oil penetration.
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Available Models: NY150, NY250, NY300, NY400, NY510, and HNY300 — each model suited to different pressure and temperature ranges.
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Working Pressure: 1.5 MPa – 5.0 MPa
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Operating Temperature: 150°C – 510°C
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Thickness Range: 0.3 mm – 5 mm
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Standard Sheet Sizes:
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1500 × 1500 mm
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1500 × 1360 mm
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1500 × 1000 mm
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1270 × 1270 mm
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Customization Options:
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Reinforcement with steel wire mesh available for higher strength.
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Graphite coating on one or both sides can be added for improved sealing and durability.
Additional Properties
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Compressibility: 7–17%
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Recovery Rate: ≥ 45%
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Density: 1.9–2.0 g/cm³
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Oil Resistance: Weight increase ≤ 30% after immersion in IRM903 oil (149°C, 5 h)
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Flexibility: No cracking when bent 180° on a mandrel (12× thickness)
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Nitrogen Leakage Rate: ≤ 300 ml/h·mm
Applications
Oil-Resisting Asbestos Gasket Sheets are mainly used in systems handling oil, fuel, and chemical media. They provide sealing solutions for flanges in pipelines, engines, and machinery used in petroleum, chemical processing, and marine industries. They are suitable for mineral oil, gasoline, fuel oil, and lubricating oil systems, and are widely applied in power generation and transportation equipment.
Packaging
The gasket sheets are packed on wooden pallets with net weights of 1000–2000 kg per pallet to ensure safe handling, transport, and storage. Each pallet is securely wrapped to protect against moisture and physical damage.
NY510 |
NY400 |
NY300 |
NY250 |
NY150 |
HNY300 |
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Horizontal Strain MPa≥ |
18.0 |
15.0 |
12.7 |
11.0 |
9.0 |
12.7 |
Compressibility % |
7~17 |
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Rebound degree |
50 |
45 |
35 |
50 |
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45 |
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45 |
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Density g/cm³ |
1.9 ~ 2.0 |
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Nitrogen leakage rate [(ml/h.mm)] ≤ |
300 |
Normal temperature Pliability |
Bend 180 degree on the round column (the column diameter is 12 multiple sample thickness, No crack |
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Dipped in IRM903 oil with 149℃ for 5 hours |
Horizontal Strain MPa≥ |
15.0 |
12.0 |
9.0 |
7.0 |
5.0 |
9.0 |
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Weight increasing % ≤ |
30 |
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Appearance change |
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No bubble |
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Dipped in ASTM fuel oil B with 21℃-30℃ for 5 hours |
Thickness increasing% |
0 ~ 20 |
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0 ~ 20 |
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Pliability |
Bend 180 degree on the round column (the column diameter is 12 multiple sample thickness, No crack |
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Cauterization to the metal material |
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No Cauterization |
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Normal temperature oil Airtightness |
Medium pressure MPa |
18 |
16 |
15 |
10 |
8 |
15 |
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Airtightness request |
Keep for 30min, no leak |
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classify |
Grade |
Recommended Uses range |
General industrial use Oil-resisting CAF jointing |
NY510 |
Max working temperature:510℃ max working pressure:5.0MPa |
NY400 |
Max working temperature:400℃ max working pressure:4.0MPa |
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NY300 |
Max working temperature:300℃ max working pressure:3.0MPa |
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NY250 |
Max working temperature:250℃ max working pressure:2.5MPa |
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NY150 |
Max working temperature:150℃ max working pressure:1.5MPa |
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Aviation industrial use |
HNY300 |
Used to Blow 300℃ aircraft fuel,Petroleum base lubricating oils and pneumatic system seal gasket |