WQ submersible sewage pump sales, repair sewage pump replacement bearings, automatic coupling quote

WQ submersible sewage pump sales, repair sewage pump replacement bearings, automatic coupling offer a selection step, lists the basic data: 1. characteristic of media: media name, specific gravity, viscosity, corrosive, toxic, etc. 2, the medium contained in solid When the flow rate (℃) 4, the desired flow general industrial pumps can be ignored in the process piping system leakage, but must take into account process variations: the particle diameter (mass or volume percentage) 3, medium temperature impact. Agricultural water pump if the use of open channel must also consider the seepage and evaporation. 5, pressure: pressure drainage sump tank pressure piping system pressure drop (head loss) 6, piping data (diameter, length, type and number of pipe fittings to the pressure tank sump geometry elevation, etc.) if desired, also device characteristic curve should be made in the arrangement of piping design should note the following: A, reasonable choice of pipe diameter pipe diameter at the same flow rate, low flow velocity resistance losses small but high prices will lead to a small diameter pipeline resistance loss increases rapidly so that the Option to increase the pump head equipped with power increased and operating costs have increased and therefore technical and economic point of view should be taken into account B, the discharge pipe and fittings can withstand should consider the maximum pressure C, piping should be as straight arranged tube to minimize pipe attachments and minimize the time length of the pipe must be turned elbow bend radius should be 3 to 5 times greater than the angle of the pipe diameter as 90 ℃ D, the discharge side of the pump to be fitted with a valve (ball or cut-off valves, etc.) and check valve valves used to regulate the operating point of the pump check valve prevents reverse flow when the pump and the pump reverse avoid water hammer blow (when the liquid back will have a huge reverse pressure pump damage) Second, to determine the flow of determining a flow head, if the production process has been given the minimum, normal, maximum flow should consider the maximum flow rate b, is given only if the production process flow should be considered normal to leave a margin For ns> 100 large flow of low-lift pump flow which is not intended to take the 5% margin of ns> 50, low flow high head pump flow margin to take the pump flow margin 10% 50≤ns≤100 also take 5% of the mass the harsh operating conditions of the poor and the pump flow margin should take 10% c, only if the basic data to be converted into weight flow volume flow? WQ submersible sewage pump sales, repair sewage pump replacement bearings, automatic coupling offer?