> Fundamentals of Fluid Mechanics > Steady Incompressible Flow > Flow around Bodies > Steady Flow of Compressible Fluids > Examples of Transient Flow > Hydraulic Fluid Energy Machines > Components in Piping Systems and Plant Design > Fluidic Experimental Plants > Hydraulics for Civil Engineering
 Products  |  Fluid Mechanics  |  Fundamentals of Fluid Mechanics  |  HM 150.16
 HM 150.16 Series and Parallel Connected Pumps
 Technical Description

In complex systems, pumps can be connected in series or in parallel. In series operation the heads are added together and in parallel operation, the flow rates of the pumps are added.
With HM 150.16 pumps are studied individually, in series and in parallel.
The experimental unit contains two identical centrifugal pumps and an intake tank with overflow. The overflow ensures a constant suction head in the tank, regardless of the water supply. Ball valves in the pipes allow easy switching between series and parallel operation.
Intake and delivery pressures of the two pumps and the pressure in the water drain pipe are displayed on manometers.
The experimental unit is positioned easily and securely on the work surface of the HM 150 base module. The water is supplied and the flow measured by HM 150. Alternatively, the experimental unit can be operated by the laboratory supply.
The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / Experiments

Investigation of pumps in series and parallel connection
- recording the pump characteristic curves
- determining the hydraulic power
- determining the operating point

 Features
* Series and parallel connected pumps1
* Determining pump characteristic curves
 Available accessories
HM 150 -- Base Module for Experiments in Fluid Mechanics
 Alternative products
HM 150.04 -- Centrifugal Pump
HM 284 -- Series and Parallel Connected Pumps
HM 365.14 -- Series / Parallel Pumps Module
 Specification [1] investigation of series and parallel connected pumps[2] two identical centrifugal pumps [3] transparent tank as intake tank[4] overflow in the tank ensures constant suction head [5] ball valves used to switch between series and parallel operation[6] manometers on intake and delivery side of each pump and in the delivery pipe[7] flow rate determined by base module HM 150 [8] water supply via HM 150 or via laboratory supply Technical Data 2x centrifugal pump- power consumption: 660W- max. flow rate: 34L/min- max. head: 38m Tank: 20L Pipes and pipe connections: PVC Measuring ranges- pressure (intake side)  pump 1: -1...1,5bar  pump 2: -1...5bar- pressure (delivery side)  pump 1: 0...6bar  pump 2: 0...10bar- pressure (delivery pipe): 0...10bar Dimensions and Weight LxWxH: 1.110x650x600mmWeight: approx. 62kg Required for Operation 230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phaseHM 150 (closed water circuit) or alternatively water connection and drain Scope of Delivery 1 experimental unit1 set of instructional material Order Details 070.15016  HM 150.16  Series and Parallel                                        Connected Pumps