JB/T 8659-1997 (English Version) PDF

Scope: This standard specifies the calculation and verification methods for the hydrodynamic characteristics, flow resistance and hydrodynamic reliability in the heating tubes of hot water boilers. This standard applies to various fixed hot water boilers using water as the medium within the scope of GB/T 3166-1988 "Hot Water Boiler Parameter Series". For the water-cooled wall heating surface of the shell-type horizontal externally fired water-fire tube hot water boiler and the hot water system in the steam-water dual-purpose boiler, this standard can also be used to check the hydrodynamic characteristics. This standard does not apply to hot water boilers whose water quality conditions do not meet the requirements of GB/T 1576-1996 "Low-pressure Boiler Water Quality".

JB/T 8659-1997 history