泵选型一般程序（General procedure for pump selection）.docVIP

泵选型一般程序（General procedure for pump selection） General procedure for pump selection 1, according to the arrangement of the device, topographic conditions, water level conditions, operating conditions, economic programs, and many other factors 2. Consider horizontal, vertical and other types (pipe type, right angle type, variable angle type, corner type, parallel type, vertical type, vertical type, diving type, detachable type), Submerged type, no jam type, self suction type, gear type, oil filled type and water filled type. The horizontal pump is easy to disassemble and assemble. 3, easy to manage, but bulky, 4, more expensive, 5, be a great area; vertical pump, 6, in many cases the impeller submerged in water, 7, at any time can start, 8, to facilitate the automatic or remote control of mood, 9, And compact, 10, installation area is small, 11, the price is cheaper. 3, according to the nature of liquid medium, determine the clean water pump, hot water pump, oil pump, chemical pump or corrosion resistant pump or impurity pump, or adopt non blocking pump. Installed in the explosion area of the pump, should be based on the level of explosion zone, explosion-proof motor. 4, vibration volume is divided into: pneumatic, electric (electric divided into 220V voltage and 380V voltage). 5, according to the size of the flow, the menu suction pump or double suction pump: according to the lift level, the menu suction pump or multi suction pump, high speed pump or low speed pump (air conditioning pump), Multistage pump efficiency than single stage pump low, elected single stage pump and multi-stage pump can also be used, should choose a single-stage pump. Q 6, determine the specific model of the pump, the use of what series of pump selection, you can maximize the flow, to enlarge the 5% - 10% headroom after the lift of these two main parameters of performance, Determine the specific model on a spectrum or a series of characteristic curves. Using the pump characteristic curve, the