Centrifugal pump perform 2 standard

product standards of the centrifugal pump, centrifugal pump technology conditions, 'GB/T - Ⅰ class The centrifugal pump technology conditions, 'GB/T - Ⅱ class The centrifugal pump technology conditions, 'GB/T - Ⅲ class The centrifugal pump efficiency of GB/T - The centrifugal pump, the mixed flow pump and axial flow pump NPSH, GB/T - The centrifugal pump, the mixed flow pump and axial flow pump hydraulic performance test specification precision level 'GB/T - Overall size tolerance of rotary dynamic pump EN - The centrifugal pump, mixed flow and axial flow pump hydraulic performance test specification precision level 'EN ISO - The centrifugal pump technology conditions Ⅰ class EN ISO - The centrifugal pump technology conditions Ⅱ class EN ISO - The centrifugal pump technology conditions Ⅲ class EN ISO - The liquid pump with frequency converter pump equipment guarantee and the compatibility test of EN - The rotary power level and pump hydraulic performance acceptance test, 'EN ISO - The conditions of rotary displacement pump technology EN ISO - And centrifugal pump specification for design of building water supply and drainage engineering standard GB - The building water supply and drainage and heating engineering construction quality acceptance standard 'GB - Related standard drawing, centrifugal pump SS the vertical pump vibration isolation and its installation site keywords: pneumatic ball valve pneumatic ball valve pneumatic pneumatic valve pneumatic pneumatic valve