Volute Pumps (High Flow Rate)
High-flow volute (norm-type) centrifugal pumps for agricultural irrigation, industrial use and transfer lines: flanged and motor-coupled models.
Products (4)
- Sumak SMT 250/32 Volute Pump, 7.5 kW, 2900 rpm – $1,987.40
- Ulusu HF Series Centrifugal Pump – Request a quote
- Ulusu UPS-F 1000T Centrifugal Pump, 50/160 Series – Request a quote
- Ulusu UPS-S 150 2/2 Centrifugal Pump – Request a quote
What is a volute pump?
Volute pumps are single-stage, high-flow centrifugal pumps recognized by their spiral casing, which resembles a snail shell. They are also commonly known as "high-flow pumps." Typical applications include field irrigation, drawing water from irrigation canals and ponds, cooling water and process water transfer in industrial facilities, and filling or emptying large tanks. They are manufactured across a very wide capacity range depending on casing and impeller size.
Key features
- High flow rate: Delivers large volumes of water at moderate head.
- Flanged connection: Suitable for fixed installation on large-diameter pipelines.
- Motor-coupled or bare-shaft option: Can be supplied coupled to an electric motor or driven by a separate power source.
- Easy maintenance: Its simple design makes impeller and mechanical seal replacement straightforward.
Designations such as "50/160" in product names generally indicate the outlet diameter and impeller diameter; check the product description for the exact meaning.
Selection recommendations
When selecting a volute pump, first determine the hourly water requirement and calculate the head needed at that flow rate. Because these pumps operate at high flow rates, pipe diameters must also be large; undersized pipes increase friction losses and reduce pump efficiency. Installing the pump close to the water source and at the lowest possible elevation makes priming easier. For high-power applications, a three-phase motor and an appropriate starter arrangement should be used.
Frequently asked questions
Does a volute pump self-prime?
No; it is not self-priming. The suction line and casing must be filled with water, and a foot valve must be fitted at the end of the suction pipe.
Can it be used for drip irrigation?
Drip irrigation generally requires higher pressure and lower flow rates. Double-impeller or multistage pumps are more suitable for these systems.
What does a motor-coupled volute pump mean?
It is a model supplied with an electric motor, mounted on a common base frame and connected via a coupling.
What power rating should I choose?
Power is determined by the required flow rate and head. You can submit these values and request a quote from the product page.
How can the flow rate of a volute pump be increased?
Without replacing the pump itself, flow rate can only be increased to a limited extent: enlarging the suction and discharge pipe diameters and reducing unnecessary elbows and valves lowers friction losses.