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James Walker® Gaskets & Jointings > Non-asbestos sheet jointings



  Non-asbestos sheet jointings
Inca
DESCRIPTION
Inca is a high quality and reliable, yet economically priced, jointing based on glass and aramid fibres combined with a nitrile (NBR) binder. It is supplied in a midgreen surface finish. An anti-stick finish to both surfaces is supplied as standard.
PRIME FEATURES
• Adurable jointing for general purpose, medium performance, duties.
• Suitable for steam, condensate, water, air, oils, solvents and a wide range of other media.
• Value engineered to provide excellent value for money.
SPECIFICATION
• Readily meets all the requirements of BS7531 Grade Y.
• WRAS approved for use with hot and cold potable water up to 85°C.
 
PHYSICAL PROPERTIES
(Typical values for 1.5mm thick material)
Density, Mg/m3 1.85
Transverse tensile strength, MPa 7.0 (ASTM F152)
Residual stress, MPa 23.0 (BS7531)
Compressibility, % 10.0 (BS7531)
Recovery, % 55.0 (ASTM F36J)
Gas permeability, ml/min <1.0 (BS7531)
Leachable chloride ion content, ppm <100
 
FLUID IMMERSION PROPERTIES
ASTM oil 3, % thickness increase, 5h @ 150°C 5.0 (BS7531)
ASTM fuel B, % thickness increase, 5h @ RT 6.0 (ASTM F146)
Water, % thickness increase, 5h @ 100°C 5.0 (BS7531)
 
SERVICE CAPABILITY GRAPH
INCA, up to and including 2mm thickness: maximum working
pressure against temperature guidelines.
 
SERVICE CAPABILITY
For applications falling into the green zone, the product may normally be used without consultation. In the amber zone we recommend that our technical services team be contacted for confirmation of suitability. If the pressure/temperature combination is in the red zone then we must be consulted before the product is used. Class lines refer to ASME B16.5.
 
HOW SUPPLIED
Precision cut gaskets to any shape, size and quantity. In sheets 2.0m x 1.5m, 1.5m x 1.0m. Thicknesses: 0.5mm, 0.75mm, 1.0mm, 1.5mm, 2.0mm. Please note that 3.0mm is also available but is not recommended (click here for advice on gasket use).