Two-Stage Series And Parallel Pumps
Product Code : LSK-FM-10436
Two-Stage Series And Parallel Pumps (SKU LSK-FM-10436) is a compact, mobile and self-contained test rig with two centrifugal pumps that students run alone, in series or in parallel to compare their characteristics. It suits fluid machinery labs in engineering degrees, diplomas and technical training. Science Lab Supplies manufactures the twin-pump rig on its own shop floor at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and universities, polytechnics, tender contractors and distributors buy it from there without a middleman.
Specifications
The twin-pump rig's motors, instruments, valves and water circuit each take a row in the table. In short, two bearing-mounted motors drive the pumps independently, each with its own Motor Drive, torque load cell and speed sensor, while a two-way valve switches between single, series and parallel running and a Venturi meter gives the flow rate.
| Specification | Value |
|---|---|
| SKU | LSK-FM-10436 |
| Format | Compact, mobile, fully self-contained |
| Pumps | 2 centrifugal pumps |
| Motors | 2 bearing-mounted motors, each driving one pump independently |
| Speed control | Electronic Motor Drive for each pump |
| Torque measurement | Load cell on each pump |
| Speed measurement | Sensor on each pump |
| Displays | Each Motor Drive shows speed and torque and calculates true shaft power |
| Instrument mounting | Instrument and control modules in a frame above and behind the pumps |
| Operating modes | Single pump, series, parallel, set by a two-way valve |
| Inlet valves | One for each pump |
| Viewing | Transparent window on each pump showing the impeller and cavitation bubbles |
| Flow measurement | Differential pressure across a Venturi meter |
| Water circuit | Integral reservoir, strainers, series of valves, Venturi meter, return to reservoir |
| Water use | Recirculating, keeping water use to a minimum |
| Option | Stroboscope |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Series and Parallel Pumps
The rig shows how combining two centrifugal pumps changes the system: series operation raises head, while parallel operation raises flow. Students plot head and efficiency against flow for each arrangement, observe cavitation through the pump windows and measure flow with a Venturi tube.
- Pump performance: head versus flow and efficiency versus flow.
- Operation of centrifugal pumps in series and in parallel.
- Demonstration of cavitation, which can be studied further in a Venturi throat on the Cavitation in a Venturi unit.
- Flow measurement using a Venturi tube, alongside the stand-alone Venturi Flowmeter for flow meter calibration work.
- Non-dimensional performance characteristics for B.Tech fluid machinery labs.
Standard Scope of Supply
The rig is supplied as one self-contained unit: two centrifugal pumps with bearing-mounted motors, integral reservoir, strainers, inlet valves, two-way valve, Venturi meter, and the instrument frame with a Motor Drive and display for each pump. The stroboscope for viewing cavitation is optional.
Packing, MOQ and Lead Time
A quotation can be made for one rig or for a lab-wide order, and it states the packing, delivery time and price for whatever quantity you specify. Pressure displays or other fluid mechanics lab experiments can be listed on the same quotation.
With its Importer-Exporter Code, Science Lab Supplies is set up to ship to buyers in Oman, the Philippines, Nepal, Bangladesh, Zambia and Rwanda. The business is registered under Udyam as a manufacturing enterprise (UDYAM-HR-01-0014546) and for GST (GSTIN 06ADEPJ0574F2ZU). Tell us how many rigs you need on the contact page, or save them to the enquiry cart; institutional bids are explained on the lab tender page.
Frequently Asked Questions
How do students switch between series and parallel?
A two-way valve in the system sets the pumps to run alone, in parallel or in series, and each pump has its own inlet valve, so the change needs no pipework alterations.
Can each pump run at a different speed?
Yes. Each pump has its own motor and electronic Motor Drive, so speed is set independently and each display shows that pump's speed, torque and shaft power.
How is cavitation made visible?
Each pump has a transparent window, so students can see the impeller turning and the water vapour bubbles that form at cavitation, and they can also hear it. The optional stroboscope makes the effect easier to see.
Is Science Lab Supplies the manufacturer or a trader?
Both pumps, the frame and the instrument modules are assembled into this rig at the company's Saha, Ambala factory in India. Science Lab Supplies is therefore the maker, and your quotation is drawn up there rather than by a trading firm.
Related Pump Test Equipment
These Fluid Mechanics and Hydraulics and Pneumatics items cover single-pump tests, pressure reading, drive instrumentation and other pump types, so a pump laboratory can be planned around the two-stage rig on one quotation.
- Centrifugal Pump Test Set — one pump, with analogue and digital instrumentation usable together.
- Variable Speed Series and Parallel Pumps — variable and fixed speed pumps drawing from a clear acrylic reservoir.
- Analogue Pressure Display — Bourdon gauge panel with handles for lifting.
- Multi Pump Test Rig — series/parallel demonstrations with its second centrifugal pump option.
- Centrifugal Pump Module — pump, Venturi flowmeter, valves and reservoir on a mobile trolley.
- Universal Dynamometer — trunnion-mounted induction motor with a strain gauge load cell.
- Gear Pump — positive displacement pump with double gears.
Browse the full Fluid Mechanics range, the Hydraulics and Pneumatics range, or all engineering laboratory equipment.
Last updated: 22 October 2026
