The dry season river dock company from the wharf area maximum height difference of 17 meters, is the need to purchase pumps for wharf surface wash pump water, the pipeline outlet pressure to the ordinary fire water pump pressure standard, the best do not directly into the water, can be placed in the dock or wharf surface from 10 meters (below three terminal position floor, 6 meters on average one floor), to facilitate the maintenance of. What type of water pump is the best choice? What brand is the best choice at home and abroad?! Be deeply grateful！
ZGD1.5KW screw pump, lift 120 meters. Caliber inch. High pressure. Screw type. It can absorb more than 30 meters of water.
0.1MPa 1, according to the water pressure of the hydrant, dry season difference 17m geometric head for 17m, the pipeline resistance calculated according to 10%~20% 1.7~3.4m, from 3m, so the pump head should be 17+3+10=30m, considering that this is the dry season conditions, when the water level elevation is lower than 17m when the actual demand of low lift in 30m, it is not recommended to 35m head to head design, 30m under various conditions are enough (the actual operation of pump lift by lift device, so if the head is too high may lead to the actual use of pump bias conditions, and low lift and large flow operation, the flow of super power) selection of I don't know your personal needs, can not make a judgment, suggestion the flow rate and pipe diameter according to the economic flow rate of 2.5m/l is about to take it.2, from the operation of the pump, it is best to water intrusion, is higher than the pump center line, so it is best to get the pump installed under the negative on the second floor, if you can not meet the high water pump and the center line, there are three choices in the selection of a pump: 1, submersible pump (by landlord excluded); 2: the ordinary centrifugal pump + water diversion device (water diversion valve then available irrigation water or vacuum diversion device, this approach might not be used, and irrigation valve trouble, valve is broken with it, such a small pump vacuum water cost is too high); 3: self suction pump. Recommendations may consider self suction pump, self-priming pump is also divided into no sealed automatic control self-priming pump and general cantilever self-priming pump both, but the installation height is still lower, the better, because the lower the water level of the entrance, the more likely to suck water.
Domestic I do not understand, only know that you dock water, it is best to use sea water pump, or allow manufacturers to do your anti-corrosionVille, Grundfos.Lift up, I'll do it. 30m is pretty muchThe self-priming pump is OKWhich brand do you want to use? Just call them directlyLet them count it for you and then type itFirst know about yourself, generally know a power head water quantity on the line
