Jet Pumps: Self-Priming Technology for Well, Tank, and Surface Water Access
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We specialise in supplying robust Jet Pumps, recognised industry-wide for their crucial self-priming capability. This technology allows the pump to automatically expel air from the suction line to draw fluid in, eliminating the need for manual priming before initial startup—a critical advantage for tank transfer, shallow well retrieval, and well point systems. Jet pumps are the defining example of a self priming pump in surface water applications…
Our catalogue features high-performance units typically sized under 2.2 kW, providing reliable operation for diverse applications, including residential water supply and garden irrigation. Trust our expertise to specify a durable Jet Pump that guarantees consistent fluid access without constant intervention.
Need a complete installation? We design and manufacture custom jet pump bases for medium and large-scale projects.
Every pump in this category, including all Jet Pumps, is backed by M Bond Engineering’s complete product lifecycle support and Engineer (ECSA-Certified) repair workshop.
Jet Pump Catalogue
R3,616.50 Original price was: R3,616.50.R2,350.73Current price is: R2,350.73.
R4,120.50 Original price was: R4,120.50.R2,678.33Current price is: R2,678.33.
R4,216.50 Original price was: R4,216.50.R2,740.72Current price is: R2,740.72.
Jet Pump FAQs
What is the maximum vertical suction lift for a standard Jet Pump?
A standard jet pump is typically limited to a maximum vertical suction lift of
approximately 7 to 9 metres (23 to 30 feet) at sea level. This hydraulic limit is dictated by atmospheric pressure, which drives the self-priming mechanism. For depths exceeding 9 metres, a
deep-well jet pump (which uses two pipes and an ejector nozzle down the well) or a
submersible pump is mandatory.
How does a Jet Pump's self-priming mechanism actually work?
The pump uses a dual-chamber design. The impeller creates a vacuum, and a small amount of water is recirculated back to the suction side through a
venturi jet (or ejector). This jet creates a high-velocity flow that draws air out of the suction line and into the pump casing, rapidly filling the void and allowing the pump to automatically prime itself.
What is the most common cause of failure in a Jet Pump system?
The most common cause of failure is
loss of prime, which occurs when the pump starts and cannot establish suction. This is often traced to a leak in the suction pipe, a worn-out
foot valve (non-return valve) at the end of the suction line, or a degraded
mechanical seal that allows air to enter the casing. Running dry due to lost prime will cause severe thermal damage.
What is the ideal application where a Jet Pump outperforms a Submersible Pump?
A jet pump outperforms a submersible pump when
portability, simple maintenance access, and surface-level installation are required. Since the motor and pump unit sit outside the water source, maintenance (like unblocking or seal inspection) is significantly easier, making them ideal for rain harvesting or
well point systems.
Do you offer systems with Variable Speed Drives (VSDs) for Jet Pumps?
Yes. While traditional jet pumps are fixed speed, we integrate modern systems with
Variable Speed Drives (VSDs) for precision control. A VSD allows the pump to adjust its speed to maintain a constant discharge pressure regardless of demand, optimizing flow stability and
reducing energy consumption in residential and commercial boosting applications.
Do you offer service and maintenance for Jet pumps?
Yes. We offer
full mechanical and electrical pump repair services, backed by our 8-Point QCP.
