Material Rubberised Fabric Reinforced Rubberlined (RRL) (Elastomeric Outer Covering) BIS Standard IS:636-1988 Types Available TYPE-B ID (Nominal Bore) 63 mm Reinforcement High Quality Synthetic Yarn Mass Max. 500 gm/mtr Coil Diameter Less than 55cm for 30 mtrs of Type-B Adhesion between Lining & Jacket At least 25 MM/MIN, in accordance with Appendix B of IS:636-1988 Minimum Bursting Pressure 3.5 mpa in accordance witth IS:443-1975 Abrasion Resistance At least 200 cycles before bursting in accordance with Appendix C of IS 636-1988 Oil Resistance No Swelling of Rubber & No Weathering and racking in rubber lining Heat Resistance Shall not burst at less than 20 seconds of the application of hot cube Ozone Resistance Lining & Cover of Hose neither develop cracking nor crazing Moisture Absorption Amount of water absorbed shall not exceedof 0.07 kg/cm2 Workability Can work at Certified pressures as lab tested on calibrated machines Type Proof Pressure (Min) Change in Diameter at Proof Pressure Change in Length at Proof Pressure Minimum Bursting Pressure B 2.1 Mpa ?10 % ?6 % 3.5 Mpa
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