JB/T 7743-2011 in English

本标准规定了旋涡泵的型式、型号和基本参数、技术要求、试验方法、检验规则、标志、使用说明书、包装、运输和贮存。
本标准适用于输送不含固体颗粒、运动粘度不大于37.4mm2/s液体的机械密封泵和输送易燃、易爆、易挥发、有毒、有腐蚀性以及贵重液体的磁力传动泵。被输送液体的温度：机械密封泵为-20℃～120℃,磁力传动泵为-20℃～250℃。

Scope

This standard specifies the type, model, basic parameters, direction of rotation, technical requirements, tests and test methods, inspection rules, signs, instructions for use, packaging, transportation and storage of vortex pumps (hereinafter referred to as pumps). This standard is applicable to mechanical seal pumps that transport liquids that do not contain solid particles and have a kinematic viscosity not greater than 37.4 mm/s, and magnetic transmission pumps that transport flammable, explosive, volatile, toxic, corrosive and valuable liquids. The temperature of the liquid being transported:
　——20℃~120℃ for mechanical seal pumps and -20℃~250℃ for magnetic drive pumps.