We are a professional manufacturer of slurry pumps,sewage pumps,etc.
Telephone:+86-311-89940549 Email:anpump5@angroupcn.com
The current position : Home - News

Why is the pump suction pipe often one size bigger than the pump connection?


It has become common practice to always have the pump suction line at least one size greater than the pump suction flange size. The transition is accomplished with an eccentric reducer usually with the flat on top but not always. The most critical thing about the pump suction is to ensure that the flow stream lines arrive at the suction eye of the pump with no large scale turbulence as can be caused by an upstream elbow. This is a function of the pipe geometry which means that a nice long straight suction pipe is desirable. A larger pipe reduces the pressure drop due to friction and provides more pressure at the pump eye, this provides more energy to the pump.

All kinds of cockamamie pump suctions have been designed in the past for various reasons and some of them even work. However, as a piping designer you don't want to re-invent the wheel all the time and you are looking for tried and true methods that will let you sleep easy.

View CategoriesInquiry NowRecommended Products
Hot Product: Stainless Steel Vertical Multistage Pump /Stainless Steel Submersible Sewage Pump /AJYT Centrifugal Syrup Pump /Check Valve /Gate Valve /Stop Valve
Copyright © Shijiazhuang An Pump Machinery Co., Ltd All Rights Reserved
Online Service×
Pls leave your mobile
No., skype and email,
we will provide what
you need good quality
reasonable price pump
and reliable service.