CVI INOX 3-36 T – vertical multistage stainless steel centrifugal pump, in-line design
The IPRO CVI 3-36 T INOX is a vertical, multistage centrifugal pump with in-line ports, designed for precise duty-point selection in installations requiring repeatable performance and low noise levels. The impeller, diffuser, and all hydraulic components in contact with the fluid are made of AISI 304 stainless steel, while the IE3 efficiency-class three-phase motor meets current energy efficiency requirements for industrial drives. The in-line design allows installation directly in the pipeline axis without the need to redesign the system.
Who it's for
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Industrial and manufacturing facilities – the CVI 3-36 T INOX pump provides stable pressure in high-pressure circulation systems, cleaning systems, and boiler room supply installations.
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Small and medium-sized multi-family buildings – the multistage design provides high head with sufficient flow for several to a dozen or so apartments or a small commercial property.
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Maintenance departments – the in-line design makes it easy to replace the pump without dismantling an entire section of the system, reducing downtime.
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Fire protection and air conditioning system installers – the pump is used in fire protection, refrigeration, and air conditioning systems that require continuous, reliable operation.
Applications
The IPRO CVI 3-36 T INOX pump is designed for pumping clean, chemically non-aggressive liquids in domestic water supply systems, including waterworks, pressure-boosting stations, and pressure-boosting systems. W industrial environments, it is suitable for high-pressure circulation systems, air conditioning and refrigeration systems, fire protection systems, and transferring oil, glycol, and coolant. It is also used to supply boiler rooms and in machine lubrication systems.
W agriculture, the pump serves irrigation systems, sprinkler systems, and irrigation installations, while in the services sector it is used in laundries and car washes. Selecting the right variant requires taking into account the NPSH characteristics of the suction system to avoid the risk of cavitation when operating close to maximum capacity. The CVI 3-36 T INOX industrial pump operates in a three-phase system, powered by 3~230 V or 3~400 V.
CVI 3-36 T INOX features – design and technical data
The design of the CVI 3-36 T INOX pump is based on a precise allocation of materials according to the function of each component. The pump head and base, as load-bearing components that do not come into direct contact with the pumped medium, are made of ASTM25B cast iron, ensuring structural rigidity. The pump shaft is made of AISI 431 stainless steel, selected for its high mechanical strength. All hydraulic components in contact with the medium—the inlet, outlet, impeller, diffuser, pump casing, discharge port, and cover—are made of AISI 304 stainless steel. The neck ring is made of PTFE, and the O-ring seals are made of EPDM/FKM. The cartridge mechanical seal (silicon carbide / tungsten carbide / EPDM) is designed to operate within a range of 10–90°C.
The motors driving the CVI 3-36 T INOX belong to the IE3 efficiency class, in accordance with the EU ecodesign regulation for electric motors. Efficiency and the cos φ power factor increase with motor power, affecting the selection of electrical protection devices and the cross-sections of power supply cables.
| Motor power (kW) |
Power supply (V) |
Current draw Δ/Y (A) |
cos φ |
Efficiency (%) |
| 0,37 |
230 / Y400 |
1,6 / 0,9 |
0,81 |
73,8 |
| 0,55 |
230 / Y400 |
2,1 / 1,2 |
0,82 |
77,8 |
| 0,75 |
230 / Y400 |
2,8 / 1,6 |
0,82 |
80,7 |
| 1,1 |
230 / Y400 |
4,0 / 2,3 |
0,83 |
82,7 |
| 1,5 |
230 / Y400 |
5,3 / 3,0 |
0,84 |
84,2 |
| 2,2 |
230 / Y400 |
7,6 / 4,4 |
0,85 |
85,9 |
| 3 |
230 / Y400 |
9,9 / 5,7 |
0,87 |
87,1 |
| 4 |
400 / Y690 |
7,5 / 4,3 |
0,88 |
88,1 |
| 5,5 |
400 / Y690 |
10,0 / 5,9 |
0,88 |
89,2 |
| 7,5 |
400 / Y690 |
13,5 / 7,8 |
0,88 |
90,1 |
| 11 |
400 / Y690 |
19,6 / 11,3 |
0,89 |
91,2 |
| 15 |
400 / Y690 |
26,5 / 15,3 |
0,89 |
91,9 |
| 18,5 |
400 / Y690 |
32,5 / 18,8 |
0,89 |
92,4 |
Current draw values confirmed by nameplates and verified documentation; cos φ and efficiency are taken from the technical documentation for IE3-class motors and are for reference only.
- Pump type: vertical, multistage, centrifugal, in-line port configuration
- Power supply: 3~230 V / 3~400 V, 50 Hz
- Motor efficiency class: IE3
- Capacity: 3 m³/h for the entire CVI 3-36 T line
- Insulation class: F
- Protection rating: IP55
- Pumped liquid temperature range: -20°C to 90°C (104°C on special order)
- Max. ambient temperature: 40°C
- Liquid pH range: 3–9
- Max. operating pressure: 24 bar
- Flange connection: DN25
- Rotational speed: 2900 rpm
IPRO – 36 months (3 years) manufacturer’s warranty. Dambat provides warranty and post-warranty service.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certifications.
Frequently asked questions (FAQ) – CVI 3-36 T INOX vertical pump
What industrial applications is the CVI 3-36 T INOX pump suitable for?
The IPRO CVI 3-36 T INOX pump is used in high-pressure circulation systems, air conditioning and refrigeration systems, fire protection systems, boiler room supply, and domestic water supply systems.
Why are the head and base of the CVI 3-36 T INOX pump made of cast iron if it is an "INOX" pump?
The INOX designation applies to components in direct contact with the pumped medium – the impeller, diffuser, casing, inlet, and outlet – which are made of AISI 304 stainless steel. The pump head and base provide structural support and do not come into contact with the liquid, so they are made of ASTM25B cast iron to ensure adequate structural rigidity.
What is the IE3 efficiency class, and why does it matter when selecting a pump?
IE3 is an energy efficiency class for electric motors, in accordance with the EU Ecodesign Regulation. Higher efficiency translates into lower operating costs during continuous operation, which is particularly important in industrial installations operating in S1 mode.
What liquids can the CVI 3-36 T INOX pump?
The pump is designed for clean, chemically non-aggressive liquids with a temperature range of -20°C to 90°C (up to 104°C on special order) and a pH range of 3–9.
What capacity does the CVI 3-36 T pump offer?
The number at the beginning of each model designation in the series corresponds to the pump’s nominal capacity class – for the CVI 3-36 T, this is 3 m³/h, or approx. 50 l/min. This flow rate is suitable for small and medium-sized multi-family buildings, smaller commercial facilities, and moderate industrial circuits, though it is still not suitable for large manufacturing plants or tall multi-family buildings.
Where can you buy the CVI 3-36 T vertical pump?
Dambat does not sell directly. The CVI 3-36 T INOX pump is available from our sales partners, plumbing wholesalers, and authorized online distributors.
Does the IPRO CVI 3-36 T INOX pump come with a manufacturer’s warranty?
IPRO – 36 months (3 years) manufacturer’s warranty. Dambat provides warranty and post-warranty service.
