Tuesday, December 13, 2016

End suction pump vs split case pump

The answer is probably no. Drilling mud is a special material and has viscosity characteristics which require a different type of pump. My experience is that these are almost always positive displacement pumps. Split case pumps are usually radial flow centrifugal pumps with multiple stages and would not work well with a high viscosity fluid. End suction pumps are also radial flow.


Due to the large flanges required for the split case sealing joint , these pumps are normally heavier and cost more than comparable end suction pumps , especially in higher alloy and higher pressure applications.

This end suction pump choice is also a candidate for water service flow rates above about 0to 0gpm, even though many pump users would probably be looking at Double Suction , between bearing, split case pumps in this flow range. Horizontal split - case (HSC) pumps are used in most industries around the world to move large quantities of fairly clean fluids—usually water—at low to medium pressures. As this system is a medium-sized system, the end-suction pump is a potential option. Vertical in-line pumps are typically used in small- to large-scale projects, so these pumps are another option. Split-case pumps are typically used for large hydronic systems.


If a lot of water has to be moved efficiently with a minimum of fuss, no other pump can outperform it. In this blog, almost all of your questions regarding end suction pumps will be answered. An end suction pump is the most basic type of centrifugal pump typically designed with a casing.

Hence, the name end - suction pump is given. This article throws light on the basic differences between an end suction pump and a double suction pump. They are more expensive than end - suction or vertical inline pumps , and not as flexible or adaptable as vertical turbines.


A lined end - suction pump is a type of end - suction pump designed with a replaceable rubber lining. This lining is designed to wear out and be replaced over time. As a result, lined end - suction pumps can stay in service for longer in the harshest applications.


It has been around for close to 1years. Because the pump is split horizontally, there is significantly more service time and rigging required to lift the heavy top of the pump. Watch for very old specifications.


Many people called double suction pumps “ split case ,” all of these pumps have split casings. Split - case pumps are typically used for large hydronic systems. It’s different from an end suction pump or inline pump, in which the casing, the suction nozzle, and the discharge nozzle are all included in a single chamber.


It is sometimes overhung or placed between bearing design. When it comes to making a choice between horizontal and vertical inline centrifugal pump , convenience is one factor that you need to keep in mind. This manual covers the installation, operation and maintenance of Patterson Pump horizontal split case pumps. When properly installed and when given reasonable care and maintenance, centrifugal pumps should operate satisfactorily for a long period of time.


A split-case pump is one where there’s a top and bottom half of the pump with the impeller between the shaft bearing on each end.

We call it a between-the-bearings pump. Your standard end-suction pump is called an overhang, or overhung impeller, because the bearings are to one side of the pump supporting the impeller, which is inside the casing. Essentially, the pump casing is split into two separate chambers, hence the name split casing or double suction centrifugal pump. One double suction pump works just like two same diameter end - suction pumps work at the same time, so its flow quantity can be doubled by using the same outer diameter impeller.


DPAS pumps are double suction , horizontal split case pumps. Since the upper cover of the pump is removable, all internal components can be easily replaced without disassembling the pump from the piping. Stuffing box is cooled with water. Seals are easily dismountable, which makes replacing and fitting up additional seals easy.


We will be looking at raising our sump and cooling towers to reduce the suction head for split case centrifs. I think the VT pump guys think that if you spec these pumps it is too late for any alternatives.

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