This standard specifies the category III requirements for design, manufacture, factory inspection and testing, and delivery of centrifugal pumps. It also covers the design features related to the installation, maintenance and safety of the pump (including the base, couplings and auxiliary piping, except the driver if the driver is not integral with the pump). This standard applies to single-stage, multi-stage, horizontal or vertical construction (coupling or coaxial) centrifugal pumps of any type of drive and installation for general use.
GB/T 5657-1995 history
2013GB/T 5657-2013 Technical specifications for centrifugal pumps (Class III)
1995GB/T 5657-1995 Technical specifications for centrifugal pumps--class Ⅲ
1985GB 5659-1985 Technical specification for multistage centrifugal pumps