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Hot water boilers
Grundfos’ single-stage and multistage pumps for hot water boilers are available for temperatures up to 140°C. All pumps can be supplied with motors with a wall-mounted or integrated frequency converter (up to 22 kW), ensuring that the pressure and temperature in the system are constant. If the boiler requires a shunt in order to avoid thermal stress, we offer highly reliable pump solutions that will hold the temperature in the boiler constant.
| Challenge | Solution |
|---|---|
| The very high temperature of hot liquids can be damaging to the pump and even destroy the shaft seal. | Grundfos offers specially designed shaft seals that handle water temperatures up to 180°C. |
| The application's inlet conditions are poor. | An advanced Grundfos low NPSH pump is available, efficiently reducing NPSH and eliminating cavitation. |
| When temperature control is part of the process, the pump material is potentially stressed because of the continuous thermal expansion and contraction. | By applying one of Grundfos' speed-controlled pumps the temperature is held constant. |
| Mechanical regulation valves are very expensive. | Grundfos' E-solutions completely eliminate the need for this particular valve as the water inlet is automatically adjusted to the fluctuating steam demand on the outlet. |
| Erratic load characteristics are a frequent problem. | Grundfos offers tailor-made software to stretch the pump curves, allowing pumps to operate outside their set curves and increase efficiency. |
| Energy consumption is important to your customer. | Grundfos' high-efficient E-solutions significantly reduce energy consumption by automatically adjusting pump performance to the actual need. Naturally, the E-solutions meet international efficiency standards. |
| Stock management can be difficult due to the global differences in voltages and frequencies. | Grundfos' E-solutions feature dual frequency and a wide voltage range, allowing you to use the same solution all over the world. Naturally, the E-solutions carry the necessary approvals. |
Important notes
