hat
2. Li ta dwe remake ke lè tèt la ak tanperati dlo a nan asye a pur multi ponp santrifujeur ak tiyo santrifujeur enstalasyon ponp yo diferan de kondisyon sa yo eksperimantal, si elevasyon lokal la se pi plis pase 300 mèt oswa tanperati nan dlo ponpe depase 20 degre Sèlsiyis, se pou valè a kalkile dwe korije. Sa se, presyon an atmosferik nan elevasyon diferan ak satire presyon an vapè pi wo a tanperati a dlo ki nan 20 degre Celsius.However, lè tanperati a dlo a se anba a 20 degre Sèlsiyis, presyon nan vapè satire kapab neglijab.
eng
2. It should be pointed out that when the head and the water temperature of the stainless steel multistage centrifugal pump and pipeline centrifugal pump installation are different from the experimental conditions, if the local elevation is more than 300 meters or the pumped water temperature exceeds 20 degrees Celsius, the calculated value shall be corrected. That is, the atmospheric pressure at different elevations and the saturated vapor pressure above the water temperature of 20 degrees Celsius.However, when the water temperature is below 20 degrees Celsius, the saturated steam pressure can be negligible.