A submersible, multi-stage, centrifugal electric pump for 3” or larger wells, tanks, or cisterns. These pumps have an extensive range of applications for lifting and distribution in civil and industrial water systems, filling of pressure vessels and tanks, pressurization and irrigation systems. Install in vertical position or, in case of horizontal installation, ensure the minimum load on the thrust assembly.
Pump clean liquids, free of solids and abrasives, that are non-viscous, nonaggressive, and chemically neutral, with properties similar to water.
- Kilowatt: 0.37kW
- Max head: 45m
- Max flow: 45L/min
- Operating range: from 0,3 to 2,7 m3/h
- Liquid temperature range: from 0 °C to +35 °C
- Maximum permitted amount of sand: 40 g/m3
- Discharge port diameter: 1” GAS
- Power supply tolerance: +6 % / -10 %
- Max starts: 20/h
- Power cable: Micra 50 – 1 m
About the pump
Pump and motor are directly coupled with a rigid coupling. Impellers and thrust rings in Noryl and diffusers are self-lubricating polyacetyl. Pump liner, shaft and coupling, strainer and cable sheath are stainless steel. Base support and head are brass, with check valve incorporated in the head.
About the motor
Submersible asynchronous two-pole motor made entirely of AISI 304 stainless steel with brass bearings. Copper squirrel cage rotor mounted on Kingsbury thrust block. Cooling of the thrust bearing assembly and the bushings is provided by water, thereby eliminating the risk of contamination. Canned-type stator in an airtight casing made of AISI 304L stainless steel. The thermal protector with automatic reset is included with the motor.
- Protection class: IP68
- Insulation class: F
- Supply voltage: single-phase 230 V / 50 Hz, three-phase 400 V / 50 Hz, three-phase 230 V / 50 Hz
Mapua Plumbing relies on the honest, experienced Allflow team
“Allflow is run by honest businessmen. They are specialists in their field and are good people to work with and they provide my team and me with good support. Any time I ring them, no matter who I deal with I get excellent customer service.”
Mapua Plumbing works as far south as Waikaia, as far west as Hokitika, and covers all of north Canterbury right up to Nelson and Tasman. No matter where their job is located, they prefer the products, service, and honest dealings they get with the team at Allflow.
“Some time ago now, Allflow recommended the DAB line of pumps to me. I tried them out and have never stopped using them. They are reasonably priced, which is important, but crucially, they never break down. I know it’s a solid brand made with high quality parts and materials that I can rely on and that my customers can rely on.
“It’s not smart business for me to have to revisit a customer because a pump I installed is failing too soon or has a fault. I never have this with the DAB pumps that Allflow sells me.”
The Allflow team is made up of specialists, Sean says. Clayton and Jacob have a depth of knowledge that he has come to rely on.
“Every time one of the team tells me something, it’s correct. If they don’t know the answer, they’ll find it. I’ve been to other places that sell pumps and you can tell that their staff don’t know anything about the pump. The team at Allflow is different, they know their equipment and they know their business and I get good information from them every time.”
Sean says working with Allflow gives him the confidence that he’s installing the correct equipment for each job. He says his customers are always happy with the results.
“I once worked on a very tricky job in North Canterbury for a customer who was a pilot living off the grid. He needed to pump water to his out-buildings. Rainwater collected in tanks on the roof of his hangar. He wanted to pump it to tanks situated about 500 metres away and up a hill. Then, the water had to be fed down to the house.”
Sean says he gave Allflow all the measurements and water requirements. They ran the calculations and identified a pump that would do the job.
“Not only did they do all the maths for me, they set up the pump so I could install it straight away, including with the right flow switches.
Sean says his business is mostly growing through word of mouth.
“I believe Mapua Plumbing has a solid reputation for doing solid work. We do it once, and we do it right. It’s really helpful to have a partner like Allflow supplying me the right advice and equipment that allows me to achieve this.”
The point of submersible pumps
Like all pumps, a submersible pump moves liquid from one point to another. So why would you buy a submersible pump?
They are used most often in industrial applications like wastewater pumping, bore well lifting, fire fighting, oil well lifting, slurry pumping, primarily for the reasons that make them a preferred choice:
- the motor is part of the pump - that's convenient!
- it's not necessary to prime a submersible pump
- it's quiet as, nearly silent, the water absorbs most of the noise
- they are energy efficient, since they don't suck in water to operate
- if you're short on space, submersibles don't take up new space (or space for a pump shed, etc)
- there's no suction pipe, reducing potential issues
- there's minimal worry about cavitation because the pump's impeller and casing are always submerged
- they are secure - they can't be (easily) knicked
Especially for industrial needs, you'll want to get a submersible that can handle solids if your water conditions demand it - such as for flood or stormwater, which are typically filled with debris. Not so much an issue for irrigation. There is a heavier-duty impeller in these pumps that creates stronger centrifugal force to separate the debris from the water.
Sure, there are some disadvantages, like the obvious fact that they are not easily accessile, especially in deep bore applications. That makes it difficult to deal to preventative maintenance.
Because they are largely inaccessible, people don't deal to maintenance and the pumps are left to run until they don't run any longer - which means prolonged exposure to liquid that naturally lends itself to corrosion. Of course, being submersed, corrosion is already a concern to deal with, especially with the seals.
The good news? All of the pumps we sell are made from corrosion-resistant materials. Check out our selection of submersible pumps.