In the varied world of pumps, vertical pumps represent a sophisticated and versatile technological solution, able to meet the most critical needs, such as the pumping of abrasive and acidic liquids, particularly those deriving from industrial processes. In this article, we will examine the main strengths and limitations of these pumps, with a focus on the solutions offered by CDR Pompe for the most complex applications.
Advantages of vertical pumps
Vertical pumps offer numerous advantages that make them a popular choice in many applications, not only industrial:
- Due to their compact design, vertical pumps require reduced installation space. This feature is particularly useful in plants where space is a limiting factor.
- The installation of vertical pumps is generally simple and quick, reducing the time and costs associated with starting the system. Their structure allows direct assembly, often without the need for complex support structures.
- It is important to consider that vertical pumps are an alternative to submersible pumps for recovery tanks. Although submersible pumps are compact and efficient, they have the disadvantage that they cannot be used for corrosive fluids without the use of special materials such as Hastelloy. In these cases, vertical pumps in PVDF and PP emerge as a valid solution. Designed to withstand harsh chemical conditions, these pumps offer a robust and durable solution, overcoming the limitations of submersible pumps and ensuring adequate resistance to corrosive fluids.
- In the CVN version of the pumps, there is no mechanical seal, since the process fluid itself is used for flushing the bushings. This configuration allows the simplicity and efficiency of the system to be maintained, using the circulating fluid to ensure adequate lubrication and cooling of the bushings without the need for complex additional components. However, for specific applications that require additional protection or more precise control, the possibility of integrating external flushing systems is available.
CDR vertical pumps for critical applications
CDR Pompe is a company specialised in the design and manufacture of centrifugal pumps, both vertical and horizontal, designed for the most critical uses. Our product range includes plastic lined magnetic drive pumps, steel magnetic drive pumps and mechanical seal pumps.
These are all pumps made with high-quality materials such as stainless steel, PP (polypropylene) and PVDF (polyvinylidene fluoride), to ensure resistance and durability even in aggressive environments.
Vertical pumps are treated by us as “custom pumps”, that is, designed specifically to meet the needs of a very specific market niche.
This specialisation allows us to provide highly customised solutions, capable of tackling the most complex challenges of modern industrial applications.
Our production of vertical pumps
- CVN: the CVN line includes vertical axis centrifugal pumps, made of PP or PVDF thermoplastic material for parts in contact with the process liquid. They are installed on a metal base plate, coated on the tank side, and coupled to the motor by means of a flexible joint. Compared to the competition, the engine mount is made of cast iron and guarantees 24/7 operation. They are suitable for applications that require high chemical resistance. Supplied in auto-flow version or with external flushing.
- TMVN: single-stage magnetic drive centrifugal pumps, custom-designed for the customer. Made of PVDF for parts in contact with fluid, they are particularly suitable for extremely dangerous applications and with low NPSH (Net Positive Suction Head).
Additional factors to consider
When it comes to vertical pumps, it is useful to highlight some distinctive features of our production. In particular, the TMVN pump line uses a magnetic drive system that ensures operation without direct contact between moving parts, reducing wear and increasing the reliability and durability of the system. This approach also minimises the risk of leakage, making TMVN pumps particularly suitable for sensitive fluids or critical environments.
On the other hand, in the CVN line, the auto-flow system uses the process fluid itself to maintain lubrication and cooling of the bushings, improving operational efficiency and reducing the need for complex external components. This system is designed to ensure optimal performance even in demanding operating conditions.
To choose the pump that best suits the specifications of your industry and your application, the CDR Pompe team is at your disposal. Contact us for more information and personalised advice. We will be happy to provide you with a timely response and tailor-made solutions for your needs.