Circulating pumps are essential for the proper operation of heating systems. Learn how they work, where they are used, and the different types available.
Let’s delve into:
• What is the purpose of a circulating pump?
• How does a water-circulating pump work?
• Where are circulating pumps used?
• Need a circulating pump? Fluid-o-Tech is here to help!
A circulating pump’s main job is to circulate hot water from the boiler to the radiators and back. It is a critical component in every heating system, ensuring that heat is evenly distributed throughout a building. Without this pump, hot water would remain stagnant, preventing the proper heating of spaces.
The operation of a water-circulating pump is quite straightforward.
The pump uses electrical energy to activate the flow of hot water from the boiler to the radiators. Once the water releases its heat, it returns cooled to the boiler through the same circuit, ready to be reheated.
The efficiency of a circulating pump depends on its regulation. If the circulation speed is too high or too low, it can compromise the system’s efficiency, causing unnecessary energy waste.
Circulating pumps are used in a wide range of applications:
• In residential settings, they are primarily used in heating systems to ensure that every radiator receives the correct amount of hot water.
• In industrial environments, circulating pumps are utilized in more complex systems to manage large volumes of water and heat large spaces.
Whether in domestic or industrial systems, choosing an efficient pump can make a significant difference in terms of energy savings and operational costs.
Need reliable circulating pumps?
There are different types of circulating pumps, including external gear pumps and rotary vane pumps:
• External gear pumps: These pumps use two gears to create water movement. They are highly valued for their precision and ability to handle high-viscosity fluids, such as oils or thicker liquids. External gear pumps are common in industrial applications where consistent and reliable pressure is required.
• Rotary vane pumps: In these pumps, fluid movement is achieved through vanes mounted on a rotor that rotates inside a chamber. Rotary vane pumps are known for their ability to generate continuous and smooth flow while maintaining excellent efficiency even with fluids of varying viscosity. They are especially useful in applications requiring quiet and reliable operation.
If you're looking for a reliable and durable circulating pump, Fluid-o-Tech offers a wide range of high-energy efficiency solutions. With years of experience in the industry, we can help you select the pump best suited to your needs, ensuring top performance and energy cost savings.
Here are some of our best models:
PO 70-400 Series - The circulating pumps in the PO 70-400 series from Fluid-o-Tech offer a combination of robustness and versatility, with housings available in brass or stainless steel and an internal safety valve. They feature flow rates ranging from 70 to 400 l/h at 1450 rpm, extendable up to 530 l/h at 1725 rpm, with a maximum pressure of 16 bar. These pumps ensure reliable performance and are ideal for installation on NEMA 48Y motors, as well as M71, M80 IEC, and NEMA 56C motors with specific adapters, offering easy installation and maintenance.
TM 300-400 Series - Designed with a stainless steel body and equipped with an internal safety valve, the TM 300-400 series pumps ensure excellent performance for circulation applications. With a nominal flow rate of 300-400 l/h at 1450 rpm and up to 560 l/h at 1725 rpm, these circulating pumps provide flow proportional to speed. They support a maximum pressure of 18 bar and, thanks to the seal-less magnetic coupling, offer long-lasting reliability. Compatible with M56, M63 IEC, or NEMA 56C motors, these pumps ensure smooth and stable operation.
TM 30-200 Series - The pumps in the TM 30-200 series, featuring a seal-less magnetic coupling, deliver high reliability and long-lasting durability. Available with brass or stainless steel housings, these circulating pumps have adjustable flow rates from 30 to 200 l/h at 1450 rpm, extending up to 550 l/h at 3500 rpm. With a maximum operating pressure of 16 bar, these pumps include an internal safety valve and 3/8" NPT or GAS connections. They are adaptable to M56, M63 IEC, or NEMA 56C motors, providing precise flow control and optimal efficiency.
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