![]() Tubes are essential components in heat exchange systems to assist with cooling down motors and other instruments. Pressure max = (Tensile strength * Wall thickness * 2 / (10 * Outer diameter) ) * 10 / Safety_factor ![]() Outside diameter = 8 millimeters (0.3150 in) Wall thickness = 2 millimeters (0.07874 in) Tensile strength = 10 * 1000000 Bursting pressure = (Tensile strength * Wall thickness * 2 / (10 * Outside diameter) ) * 10 The maximum pressure may be calculated as follows: This is due to hydrogen's particular propensities: to explode in the presence of oxygen, oxygenation sources, or contaminants to leak due to its atomic size and to cause embrittlement of metals, particularly under pressure.įor a tube of silicone rubber with a tensile strength of 10 MPa and an 8 mm outside diameter and 2 mm thick walls. In installations using hydrogen, copper and stainless steel tubing must be factory pre-cleaned (ASTM B 280) and/or certified as instrument grade.
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