Cantilever | Ultra Efficient | Chemical Resistant Pumps

Capacity

<300m³/hr

Heavy Duty – Cantilever Shaft

Head

<60 Metres

Solids Pumping Capabilities

Stainless Steel Construction

316

Run Dry Design

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With a customizable design, we tailor each pump to your exact specifications—offering flexibility in column length, materials of construction, impeller types, mounting plate size, and discharge pipe location. Suitable for both new and replacement applications, these pumps can be internally or externally mounted and handle clean or solids-laden liquids at temperatures up to 500°C.

Unlike conventional designs, our Cantilever pumps feature an immersed pump body with a motor mounted above the corrosive zone, ensuring maximum protection. Oversized heavy-duty ball bearings, located above the mounting plate and sealed against contamination, further enhance longevity and reliability. With no bearings, seals, or bushings in the liquid, the risk of failure is significantly reduced, resulting in lower maintenance costs and long-term operational efficiency.

For additional customization, we offer suction strainers and suction extensions. This makes our Cantilever pumps ideal for a wide range of applications, including: sludges & slurries, drainage & oily water sumps and tank transfer.

THE CREST PUMPS LIFETIME GUARANTEE

No matter how old your pump becomes, in the unlikely scenario that you have a problem, our engineers will be on hand to diagnose the issue and help you get up and running again.

That’s why, with Crest Pumps you’ll never need to worry about unplanned downtime again.

Talk to us now to discuss your chemical pump requirements or book a free site audit to see how much time and money you could save!

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Technical Specification

Model	SUCTION / DISCHARGE *(mmmm)**	SPEED (rpm)	RATED CAPACITY (m /hr)	RATED HEAD (m)	MAX CAPACITY (m /hr)	MAX HEAD (m)	MOTOR OUTPUT (Kw)	BEST EFFICIENCY (%)
50-32-160	50*32	2900	32	33	40	41	7.5	37
50-32-200	50*32	2900	36	51	40	63	15	35
65-50-160	65*50	2900	64	36	75	42	15	48
65-50-200	65*50	2900	58	52	75	60	18.5	46
65-50-250	65*50	1450	64	21	90	25	11	50
80-65-200	80*65	2900	78	52	100	60	22	51
100-80-200	100*80	1450	76	11	140	13	7.5	52
100-80-250	100*80	1450	120	24	150	27	15	57
100-80-310	100*80	1450	210	34	270	38	45	53
125-100-250	125*100	1450	190	21	250	22	22	54
150-125-250	150*125	1450	270	18	450	20	45	48
150-125-310	150*125	1450	320	32	400	37	55	54

Frequently Asked Questions

What is the difference between submersible and immersible pumps?

Submersible pumps are complete units, including the motor, and the whole can be totally submerged whereas immersible pumps are mounted in vertical position with the motor above the liquid and the pump end extended below the liquid level.

How does a vertical immersible pump work?

A vertical immersible pump operates with its pump end submerged in the fluid while the motor remains above the liquid level. The pump uses an impeller to draw fluid up through the pump column and discharge it at the surface. This design prevents motor exposure to harsh fluids, making it ideal for handling corrosive, abrasive, or high-temperature liquids in industries like chemical processing and wastewater treatment.

What Are the Advantages of Using a Vertical Immersible Pump?

Vertical immersible pumps offer several benefits, including space-saving design, as they require a smaller footprint than horizontal pumps. They prevent motor exposure to corrosive or hazardous fluids by keeping the motor above the liquid level. These pumps also provide high efficiency and reliability, with minimal risk

of leaks due to their seal-less or semi-sealed designs. Additionally, they are easy to maintain, as the motor and key components remain accessible without needing to drain the tank or sump