NPSH and cavitation risk calculator

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Surface pumps
Dambat is a Polish manufacturer offering high quality products surface pumps, which are widely used in various fields. In particular, surface pump is an ideal solution for users who need reliable devices for pumping water from shallow water intakes. Surface pumps Dambat products are perfect for both home water installations and professional industrial systems.
Pumps and pressure boosting sets
Pump for increasing water pressure is a reliable solution that increases the pressure in water supply systems, ensuring adequate performance in any place where water pressure is low. The offer includes a variety of products pumps increasing water pressure, which can be used in both domestic and industrial installations
- Pumps with a frequency converter
Industrial pumps
High quality of workmanship and advanced technologies make it industrial pumps Dambat are an ideal solution for applications in various industries, such as chemical, food, agricultural, construction and others. Whether you need industrial water pumps, or specialized industrial vacuum pump, Dambat provides reliable and efficient devices that will meet the most demanding tasks.
Pool pumps
Ours Pool pumps are solutions dedicated to both small and large installations, guaranteeing clean and clear water throughout the season. Pool water pump this is a key element that is responsible for maintaining proper water flow and effective filtration.
Inverters and accessories
Pump inverters from Dambat are compatible with various types of pumps, including submersible, hydrophore and single-phase, providing versatility in various applications.Inverters for deep well pumps enable advanced pump control, which translates into longer device life and greater work efficiency.
Submersible pumps and well equipment
Submersible pumps they are used in various irrigation systems and are used to extract water from deep wells. Most IBO submersible pumps have increased sand resistance, and thanks to their versatility, virtually every IBO submersible pump can be used both in single-family homes and in various types of industrial plants and farms.
Submersible pumps and accessories
Submersible pumps for dirty water and sewage are used both in single-family houses, as well as in agricultural and fish farms and enterprises. Each one we propose pump pressure for dirty water is perfectly adapted to work even in very difficult conditions.
Sewage pumping stations
The Dambat company offers home pumping stations for sewage and rainwater with a wide range of applications. Domestic sewage, leachate, dirty water, rainwater, etc. The target group of customers are individual customers, small communities and companies. We make home pumping stations in two versions.
Rainwater units
Dambat, a renowned Polish manufacturer of water pumps, offers modern solutions in the field of rainwater installations i rainwater control panels. Rain central is an advanced device that allows for effective rainwater management, which contributes to water savings and sustainable use of natural resources.
- IBO rain system
Control and security
The range includes products such as: protection of pumps against dry running, which is crucial for the proper functioning of pump installations, preventing damage resulting from lack of water in the system. Pump protection against dry running protects the device against dry running, which can significantly extend its service life.
Hand pumps
Hand water pump is a reliable and effective solution that enables pumping water from both shallow and deeper intakes. Thanks to its solid construction, Abyssinka water pump from Dambat is durable and easy to use. The offer also includes: hand pumps for waterthat are compact and efficient. Manual water pump perfect for installation on plots, gardens or home wells.
Circulation pumps and accessories
Circulation pumps for central heating are used to stimulate liquid circulation in central heating installations. and other heating and air conditioning systems. This allows you to maintain the effectiveness and efficiency of the entire system. Each produced by us circulation pump to central heating is characterized by efficient operation in all conditions and cooperation with many types of heating installations.
Hydrophore vessels and tanks
In this category you will find high-quality hydrophore vessels and tanks from the manufacturer Dambat – a company specializing in solutions for water and heating installations. We offer expansion vessels for central heating (CH) and domestic hot water (CWU), as well galvanized tanks, characterized by durability and corrosion resistance.
Water filters
Our offer includes a wide selection water filters from the manufacturer Dambat, designed to improve the quality of utility and drinking water. Each filter consists of a solid housing and a replaceable filter insert that effectively retains mechanical impurities such as sand, rust and sediment particles.
- Magnetic separators and iron removers
Pressure test pumps
Dambat, a Polish manufacturer of water pumps, offers advanced pressure test pumps, which are necessary for testing the tightness of various installation systems. Pressure test pump is a tool used in testing water installations, central heating, compressed air and pressure vessels. Ours pressure test kits They are ideal for both professional industrial applications and home installations.
Tractor pumps
Dambat is a Polish manufacturer offering a wide range PTO water pumps, which are ideal for agriculture and rural farms. PTO shaft water pump is a reliable solution that allows for effective water pumping using the tractor's power. Thanks to its solid construction and advanced technology, shaft water pump for tractor ensures efficient and long-lasting work, which is crucial in agriculture and large farms.
Combustion pumps
Dambat, a leading Polish manufacturer of water pumps, offers a wide range combustion pumps (often referred to as motor pump), which are perfect for places without access to electricity. Combustion water pump is a reliable solution, ideal for pumping water from various sources, such as wells, septic tanks or tanks. Thanks to its solid construction and efficient engines, combustion water pumps guarantee long service life and high work efficiency.
Oil pumps and kits
Our offer includes oil pumps designed for pumping heating oil, diesel oil and biodiesel. Devices such as an oil pump are used in industry and agriculture, as well as in households.
Pressure boosting kits
Pump for increasing water pressure is a reliable solution that increases the pressure in water supply systems, ensuring adequate performance in any place where water pressure is low. The offer includes a variety of products pumps increasing water pressure, which can be used in both domestic and industrial installations
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NPSH and cavitation risk calculator

Check whether the planned suction installation provides the pump with a sufficient supply of NPSH and there is no risk of cavitation. An auxiliary tool in the selection of submersible and industrial pumps.

What is NPSH and cavitation? ▾

Ambient conditions

Height above sea level [m above sea level] It affects the atmospheric pressure acting on the surface of the liquid.

Liquid

Type of liquid

Liquid temperature [°C]

Suction installation

Geometric configuration

Priming (liquid surface above the pump axis) Suction (liquid table below the pump axis)

Height difference Hz [m] (positive value)

Suction pressure losses Hf [m] The sum of linear and local losses in the suction pipeline (pipe, elbows, foot valve, screen, etc.).

Pump data

NPSH required by the pump (NPSHr) [m] Read from the pump's catalog card/diagram for the given flow Q.

Set your own safety margin Default: max(0.5 m; 10% NPSHr), in accordance with engineering practice.

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Complete the data

Enter the installation parameters to see the result.

NPSHa (available) – m

NPSHr (required) – m

Margin – m

0 –

Calculation details ▾ Contact a Dambat technical advisor →

The calculator is illustrative and supports pump selection. Actual conditions installation (pipeline condition, exact pump data, operating temperature) may change differ from the assumptions of the simplified model. In borderline and unusual cases installations, we recommend consulting the Dambat technical department.

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