Series Parallel Pumps
Product Code : EL-FMLE-10680
Series Parallel Pumps (code EL-FMLE-10680) are a pair of centrifugal pumps sharing a closed water circuit, for investigating how pumps behave when run singly, in series and in parallel. Both pumps draw 370 W; one has a frequency converter for 0 to 3300 min-1 and the other runs at a fixed approx. 2800 min-1, each giving up to 40 L/min and 10 m head, with valves to switch the arrangement, transparent impeller housings, a transparent tank and software-linked pressure and flow sensors.
Get a quote: use the Add To Cart enquiry button below, or send your quantity and delivery location through the contact page.
Specifications
| Parameter | Detail |
|---|---|
| Use | Investigating the operating behaviour of centrifugal pumps in single, series and parallel operation |
| Water circuit | Closed water circuit with transparent water tank, approx. 15 L |
| Pumps | Two centrifugal pumps with drive motors; impellers in transparent housings |
| Operating modes | Single pump, series or parallel operation, configurable via valves |
| Flow resistance | Adjusted by a valve at the pump outlet |
| Sensors | Pressure at the inlet and outlet of the pumps; flow rate |
| Instrumentation | Integrated microprocessor-based instrumentation; no additional wired devices needed |
| Software | Display and evaluation of the measured values and operation of the unit |
| Principle shown | Series operation adds the heads of the pumps; parallel operation adds their flow rates |
| Pump with variable speed | |
| Power consumption | 370 W |
| Speed | 0 to 3300 min-1, set by frequency converter |
| Maximum flow rate | 40 L/min |
| Maximum head | 10 m |
| Pump with fixed speed | |
| Power consumption | 370 W |
| Speed | Approx. 2800 min-1 |
| Maximum flow rate | 40 L/min |
| Maximum head | 10 m |
| Measuring ranges | |
| Pressure (outlet) | 2 × 0 to 5 bar |
| Pressure (inlet) | ±1 bar |
| Flow rate | 10 to 140 L/min |
| Power supply, size and weight | |
| Power supply | 230 V, 50 Hz, 1 phase |
| L × W × H | 800 × 600 × 600 mm |
| Weight | 90 kg |
| Supply | |
| Product code | EL-FMLE-10680 |
| Manufacturer | Engineering Lab Equipment, Ambala, Haryana, India |
What Are the Series Parallel Pumps Used For?
Pumping systems often use two pumps together: connected in series their heads add, which suits high-resistance systems, while in parallel their flows add, which suits systems that need more volume at modest head. Students first run the variable-speed pump alone, closing the outlet valve in steps to record its head against flow, then add the fixed-speed pump and switch the valves to series and to parallel operation. The software logs inlet pressure, outlet pressure and flow at each point, so the combined curves can be compared with the single-pump curve and with the sum of heads or flows expected for each arrangement.
What to Specify When Ordering
- Quantity — the number of series-parallel pump units required.
Frequently Asked Questions
What happens to head and flow in series and parallel operation?
In series operation the heads of the two pumps are added, and in parallel operation their flow rates are added; the unit measures both cases as well as single-pump operation.
How are the pumps driven?
Each centrifugal pump has its own drive motor drawing 370 W. One runs at a variable 0 to 3300 min-1 through a frequency converter, the other at a fixed approx. 2800 min-1.
How is the operating mode changed?
Valves switch between single-pump, series and parallel operation, and a further valve at the pump outlet adjusts the flow resistance of the system.
Which sensors and ranges are provided?
Sensors measure pressure at the pump inlets (±1 bar) and outlets (2 × 0 to 5 bar) and the flow rate (10 to 140 L/min), all read through the integrated instrumentation and software.
Can the impellers be observed?
Yes. The impellers of both pumps are mounted in transparent housings and can be watched during operation, and the water tank is also transparent.
How is an enquiry for these pumps placed?
Use the Add To Cart enquiry button shown on this page, or enter the number of units and the delivery location on the contact page.
OEM Manufacturer
The Series Parallel Pumps are made by Engineering Lab Equipment (Engineering Labs Equipment Pvt Ltd) at its works at Plot No. 43, Industrial Park, Sector 2, Growth Center, Saha, District Ambala, Haryana, India. The company designs, makes and tests fluid mechanics apparatus for flow measurement, pipe friction, pumps and hydrostatics for engineering colleges, polytechnics, technical training institutes and research laboratories in India and overseas, and can build equipment to an institution's own requirements. Tender and OEM enquiries are handled through the Tenders/OEM page.
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See the full Fluid Mechanics Lab Equipment range or all Mechanical Engineering Lab Equipment.
Request a Quote
For this and other fluid mechanics lab equipment, schools and colleges can contact Engineering Lab Equipment, a manufacturer, supplier and exporter based in Ambala, India. To ask for a quotation, send the number of series-parallel pump units required and your delivery location through the contact page, or use the Add To Cart enquiry button on this page.
Last updated: October 2026
