GB 19762-2007 Translated English of Chinese Standard. GB19762-2007: The minimum allowable values of energy efficiency and evaluating values of energy conservation of centrifugal pump for fresh waterhttps://www.chinesestandard.net, 2016 M05 21 - 18 pages This Standard specifies basic requirements, pump efficiency, the minimum allowable values of energy efficiency, the target minimum allowable values of energy efficiency, and evaluating values of energy conservation of centrifugal pump for fresh water. This Standard is applicable to single-stage single-suction, single-stage doublesuction and multi-stage centrifugal pumps for fresh water. |
Contents
| 3 | |
Scope | 5 |
Basic requirements | 6 |
The minimum allowable values of energy efficiency for pumps | 7 |
The evaluating values of energy conservation for pumps | 8 |
Common terms and phrases
210 or check According to Figure according to formula Calculation examples check n checked from column Column reference Value column the target conservation for pumps conservation of centrifugal Corrected efficiency value cubic meters curve reference value curve the target double-suction centrifugal pump efficiency for pumps Efficiency of multi-stage Efficiency of single-stage efficiency of specified energy conservation energy efficiency evaluating values examples are shown Figure 1 curve flow is greater formula A.1 fresh water Specific Fundamentals and Management greater than 10000 minimum allowable efficiency minimum allowable values multi-stage centrifugal pumps n in Table provisions of GB/T Pump efficiency pump for fresh Pump output power pumps shall comply pumps The minimum second m3/s Shanghai shown in Appendix single-stage and multi-stage single-stage centrifugal pump single-stage double-suction centrifugal single-stage single-suction specified point speed ns Figure suction Table 3 Column target minimum allowable Target minimum value values of energy water Specific speed WWW.ChineseStandard.net Δη