VEVOR LPS25-4BP-180 Hot Water Recirculating Pump, 220V, 22W 50 L/min High Efficiency Circulator Pump, EMC Automatic Water Circulation Pump 38 mm(1.5") Threaded NPT Circulator Pump for Water Heater System

ECM Permanent Magnet Motor Powers This Hot Water Circulating Pump

This VEVOR circulating pump for hot water is equipped with an ECM permanent magnet motor that utilizes modern electronic commutation technology to reduce energy loss during continuous daily operation. It has replacement part number 25-40/180 and is a direct drop-in upgrade for many existing domestic water heating systems, making replacement easy for both homeowners and contractors. The energy-efficient design means the motor is rated for Energy Class A, unlike the older, less efficient circulator types usually used in homes today.

Lower energy consumption means lower utility expenses over the system's life, especially in homes where recirculation runs all day. Homeowners replacing an old pump will benefit from the immediate efficiency increase and long-term savings offered by the electronic commutation technology integrated into the motor design. The 1-1/2” threaded connection allows for easy installation into existing piping with no major modifications, so set-up time is minimized.

50 L/min Flow Rate and 4m Head for Reliable Heating Circulation

The circulating pump for hot water is efficient at moving water in domestic heating systems of various sizes and layouts, with a maximum flow rate of 50L/min and a head lift of 4 meters. That combination of flow and pressure means water is available to all fixtures and radiators without a significant wait at the tap. Consistent circulation also helps with equal temperatures across multi-story residences or longer lengths of plumbing.

This means strong, continuous flow performance without the lag time homeowners typically experience when water hasn't been circulating for a while, especially in larger homes with higher hot water demand during the day. This type of performance makes the pump a good choice for new installations and for the replacement of under-performing circulator units. Reliable flow and head standards are essential to ensure that heating systems operate efficiently year-round.

Five Smart Control Modes for Automatic Heating System Optimization

This pump features five sophisticated control modes: Automatic, Constant Speed, Constant Pressure, Proportional Pressure, and Night Mode, providing homeowners with precise control over their heating system's operation. Each mode alters how the pump operates to address specific heating needs, ranging from increasing daytime comfort to reducing energy use at night. In particular, the automatic mode allows the pump to respond intelligently to actual system circumstances without any user adjustment.

Night Mode is designed to limit pump activity when demand is low, thereby reducing energy usage during sleeping hours, when demand for hot water naturally falls to a minimum. The Constant Pressure and Proportional Pressure modes can be switched at will, enabling customers to customize performance to their plumbing system’s individual configuration and needs. This versatility enables homeowners to find the perfect blend of comfort, efficiency, and operating cost for each season of the year.

Copper Core Motor Delivers Whisper-Quiet Operation Under 45 dB

This pump is driven by a copper-core permanent-magnet motor with noise levels below 45dB, so it is low enough not to interfere with your home life. The design eliminates brushes and slip rings totally, so mechanical wear is much less than in older circulator motors. That brushless architecture also directly contributes to the pump's silent, low-vibration operation during years of continuous use.

For properties where the pump is located near living areas, bedrooms, or underfloor heating zones, where noise would be obvious and disturbing, the key to quiet operation is advanced motor technology that minimizes vibration and sound. Being brushless also reduces mechanical wear; thus, fewer parts are likely to fail from friction over a lifetime of daily use. Combined, these features provide a reliable hot water circulation solution that does its job in the background, never drawing attention to itself.

Cast Iron Construction Withstands Temperatures Up to 110°C.

The circulating pump for hot water is housed in a robust cast-iron casing and can operate at water temperatures between 2 and 110°C, covering the full range normally encountered in domestic heating systems. The pump body is insulated, reducing heat loss. When the water is flowing, more heat energy stays where it should be. Rugged materials with intelligent insulation give long-term durability under continual demanding use.

The cast iron construction also helps the pump resist wear and corrosion, which can shorten the lifespan of lower-grade circulator units. The insulating cover minimizes heat loss and improves the system's overall efficiency, as less energy is wasted on maintaining optimal water temperatures during the day. This quality of construction means less need for maintenance and a longer lifespan for the homeowner.

Versatile 1-1/2" Threaded Circulating Pump for Hot Water Systems

This circulating pump for hot water comes with two 1-1/2 x 1" cast iron adapters and rubber seal rings, offering it wide compatibility with common residential pipe diameters and combinations. For a new heating system or when replacing an old circulator, these accessories make installation easier for DIYers and professionals alike. The basic threaded connection makes it simple to install into most existing plumbing setups without any special tools.

This flexibility makes the pump a good option for new construction jobs as well as retrofit replacements in older homes with existing plumbing configurations. There’s no need for homeowners or professionals to purchase separate adapters or fittings before beginning the installation process. This hot-water circulating pump is supplied completely in the box and can be installed and commissioned quickly.