Back to Basics: Pump Types - End Suction Vs. Double Suction ...
An end suction water pump would probably have the lowest initial cost for most applications, with reasonable efficiency. However ... Double suction, between bearing, split case pumps (see figure 3) are the second most popular centrifugal pump configuration, second only to the more common end suction, radial split design.Read More
Z22 Double-Suction Axially-split Single-Stage Centrifugal Pump (pdf)
Double suction impellers with lower. NPSH requirements give minimal installation costs. * Maximum flexibility. Wide range with many installation op- tions to meet specific applications needs. * Simplicity of service. Easy dismantling thanks to the split casing design. Applications. Sulzer split casing pump, series Z22, our...Read More
Centrifugal Pump Fundamentals NPSH & Suction Specific Speed
Centrifugal pump fundamentals introduces basic information on head, capacities, speeds, Affinity Laws, pump and system curves. ... GPM = Pump flow at best efficiency point at impeller inlet (for double suction impellers divide total pump flow by two). NPSHR = Pump ... Sg = Specific gravity of liquid (Sg - 1.0 for cold water)Read More
Pump Selection Guide - Goulds Pumps
within this industry. The Model 3600, the most modern axially split multistage pump in the world, is ideally suited for boiler feed service. Vertical turbine and double suction pumps can handle the most demanding condensate or circulating water needs. Sumps can be cleared with Goulds Pumps' line of vertical or submersible.Read More
Double Suction Vertical Pumps - Lenntech
Delivering Low-NPSH Performance and. Extended Service ... Power, and other Industrial needs, we're your one stop for Double Suction Pumps. • Model BDS. - Best choice for VS2 and VS7 pumps for energy and condensate applications. • Model DDS. - Select for VS2 pumps in raw water lift and VS7 pumps deployed in oil...Read More
Numerical Prediction of NPSHR Characteristics of Double Suction ...
Abstract - The pressure at inlet of pump is mostly below atmosphere pressure and may come below the vapour pressure of water depending on installation and operating condition. This situation may lead to cavitation in pump and it is one of the leading causes for reduced reliability on performance of centrifugal pumps.Read More
Selecting Centrifugal Pumps
Suction lift. Hs geo m. Vertical distance between water level and pump reference plane for suction lift operation. Hz geo m. Vertical distance between pump ... Moment. NPSHr m. NPSH required by the pump. NPSHa m. NPSH available. Ns. Specific speed in US units n min– (rpm) Speed of rotation s– (rev/s) nq min–.Read More
PUMPSENSE FLUID ENGINEERING PVT LTD - Hydraulic ...
A steel plant has received offers for cooling water pump from four manufacturers. The pump is required to be run over a wide range of flows. On scrutiny, all four pumps are found to operate at or very close to B.E.P and their efficiencies are identical. The installation has flooded suction (NPSHa = 10 m).Read More