Centrifugal and magnetic drive pumps for the chemical industry
Since 1950, CDR Pompe S.r.l. has designed and manufactured magnetic drive and mechanical seal centrifugal pumps in plastic, lined and steel versions in Bollate (Milan, Italy), for corrosive, toxic and hazardous liquids. The pumps serve the chemical, pharmaceutical and process industries, including custom designs. The company is ISO 9001 certified, and ATEX 2014/34/EU compliance for Zones 1 and 2 is available on request.
Contact us for a technical pump selection
Discover the industrial pump models used in the sectors: Chemical, Industrial and Pharmaceutical.
We work in close collaboration with distributors to accurately understand customer needs and propose the most suitable product for their service.
PRODUCTS
WE ARE DIFFERENT
Beyond technology, CDR Pompe’s true strength lies in its people. A team of dedicated professionals, with in-depth knowledge of the industry and a commitment to excellence, is what sets us apart. Our corporate culture values customer service, innovation, and quality, ensuring that every interaction with us is not only satisfying but also inspiring.
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From our solar power system, YTD data:
The production of our systems
Plant
99 kW
Installed Capacity
Today
18.3°C
Sunny
Current Power
51.04 kW
216 Cars taken off the road for a year
73.065 computers powered for a year
34.793 hours of TV
Produced Energy
347.93 MWh
Lifetime
108.54 MWh
This Year
3.49 MWh
This Month
0.75 MWh
This Week
102.98 kWh
Today
Frequently Asked Questions
The most frequently asked questions we receive
What are the main types of industrial pumps?
Industrial pumps fall into two main families: centrifugal and positive displacement. Centrifugal pumps suit high flow rates and low-viscosity fluids; positive displacement pumps suit dense, viscous fluids or fluids containing solids. Among centrifugal pumps, CDR Pompe manufactures magnetic drive and mechanical seal pumps in plastic, lined or steel versions, as well as peripheral, vertical and custom pumps.
How does a magnetic drive pump work?
In a magnetic drive pump, the motor's motion reaches the impeller through a magnetic coupling. An outer magnet assembly, connected to the motor, drives the inner one, connected to the impeller, without direct contact. An isolation shell isolates the fluid from the outside: the shaft does not pass through the pump casing and no dynamic seal is needed.
Magnetic drive or mechanical seal pump: which is better?
It depends on the fluid and the duty. A magnetic drive removes the dynamic seal, so the circuit is hermetic and better protects operators, the environment and the product when the liquid is corrosive, toxic or costly. A mechanical seal remains preferable when the fluid contains solids or abrasives beyond the limits of the X Series, or when the specification requires it.
Can liquids with suspended solids be pumped?
Yes, with the right pump. It needs an open impeller, wide flow passages and a suitable sealing system. CDR Pompe offers the X Series magnetic drive pumps, XTS-B in steel and XTN-BL in PFA, as well as plastic and lined mechanical seal pumps. For selection, please state the particle size, concentration and hardness of the solids and whether fibres are present.
What is the NPSH of a centrifugal pump?
NPSH (Net Positive Suction Head) is the energy available in the fluid at the pump inlet to prevent the liquid from vaporising: in practice, the difference between the absolute pressure at the suction and the vapour pressure of the fluid at operating temperature. The available NPSH (NPSHa) must always exceed the NPSH required by the pump (NPSHr), otherwise cavitation occurs.
What is cavitation in a pump?
Cavitation is the formation and collapse of vapour bubbles in a moving liquid. It occurs when the local static pressure drops below the vapour pressure of the liquid. The bubbles collapse in higher-pressure areas and generate shock waves that erode the internal surfaces (pitting). Typical symptoms are noise, vibration and a drop in performance.
Which materials are suitable for pumping corrosive acids?
It depends on the acid, its concentration and the temperature. CDR Pompe uses PP, PVDF and PFA: PVDF offers excellent chemical and thermal resistance with moderately aggressive acids, while PFA is the reference material for extreme conditions, including highly concentrated or hot acids. Hydrofluoric acid, for example, requires PFA or PVDF; hydrochloric acid can be handled with PP, PVDF or PFA.
What does ATEX mean for a pump?
ATEX comes from «ATmosphères EXplosibles» and refers to areas where gases, vapours, mists or dusts can form an explosive atmosphere: Zones 0-2 for gases, 20-22 for dusts. An ATEX pump is certified for these areas. On request, CDR Pompe provides ATEX 2014/34/EU compliance for Zones 1 and 2 on its main magnetic drive series (UTS, XTS, ETS) and on its centrifugal pumps.
Does CDR Pompe have pumps available for quick delivery?
Yes. CDR Pompe's Quick Delivery service (Emergency Stock) guarantees delivery within 3-5 working days for the products in the programme: centrifugal pumps with single and double mechanical seals and magnetic drive pumps, in AISI 316 steel or with special material linings. The available models and configurations are listed on the Support Services page.
What after-sales support and spare parts does CDR Pompe offer?
CDR Pompe supports the whole pump life cycle: pre-sales advice from its engineers, a water test and test report for every pump produced, fast repair in case of failure, routine maintenance by qualified staff and inspection of overhauled pumps by the Testing Department. The spare parts warehouse and Emergency Stock supply pumps and spare parts within a few working days.