Radiant Heat USA Rotating Header Image

Circulator Pumps

Grundfos UPS26-99BFC – the gold medal for a bronze circulator pump

Apr 7th, 2011
by admin.
Comments are off for this post

What else can be asked from a circulator pump that is both extremely resistant to external factors and versatile? This is the case of Grundfos 26-99, a bronze pump that incorporates a motor protector, a valve checking option and a three speed motor. The protection increases the life of the unit, as well as augmenting its performance, while the three speed motor can be set depending on the water flow.

Perfect for a great range of systems and applications, Grundfos UPS26-99BFC can be installed in both heating and cooling plumbing. What is extremely attractive to this pump is the fact that it has been built to work with a minimum amount of noise, and at the best performance. The three speed motor makes it suitable for many systems and requirements, even if it is needed for the plumbing of a simple house or a large building.

The bronze body of Grundfos UPS26-99BFC increases its resistance to harmful factors such as rust and corrosive substances. This is why the best water pumps are those that have a stainless steel cartridge, a ceramic shaft and a bronze casting. This circulator pump can uphold a pressure of up to 145psi and a temperature between 4 and 110 degrees Celsius. To make everything better, the manufacturers even throw in a two-year warranty for any model of pumps, provided the malfunction is technical.
In conclusion, if there were to choose a good circulator pump, Grundfos UPS26-99BFC would be a wise choice. This pump not only resists longer in time, but it is also better when it comes to repelling rust and corrosion. Subsequently, it is safe to assume that although it is quite pricey, it is a clever investment which anyone who wants a good water flow should make at some point.

http://www.bussvc.wisc.edu/purch/contract/wp5602.html

Pump working happen pressure drop

Dec 14th, 2010
by admin.
Comments are off for this post

Pressure developed by a Grundfos Circulator pumps to overcome the general resistance of the system. It is measured between the inlet and outlet of a Circulating pump.

Working pressure

Pressure existing in the system when the pump. Allowable working pressure Maximum working pressure allowed by the security conditions of the pump and system.

Cavitation

Cavitation – the formation of a gas bubble as a result of local pressure below the pressure of vaporization of the fluid at the inlet of the impeller. This leads to poor performance (pressure) and the efficiency and cause noise and destruction of material internal pump parts. Due to the collapse of air bubbles in areas with higher pressure (for example, the output of the impeller) microscopic explosion causes pressure surges that can damage or destroy the hydraulic system. The first sign of this is noise in the impeller and its erosion.

An important parameter of a Circulating pump is the Grundfos (height of liquid column above the pump suction port). It defines the minimum pressure at the pump inlet required for this type of pump operation without cavitation, ie, the additional pressure needed to prevent the emergence of bubbles. The value of Grundfos influenced by the type of impeller speed and pump. External factors affecting this parameter are the fluid temperature and atmospheric pressure.

Circulation Pumps

Dec 14th, 2010
by admin.
Comments are off for this post

Circulating pumps are a very special class of equipment to reduce power consumption. Among them it is worth noting pumps Taco 007 and Taco 0013, which allow to reduce power consumption by more than 50%. Their task is to ensure a minimum temperature difference between the coolant supply and return stroke. These pumps provide rapid movement of coolant through the pipes.

As a result, on the one hand, increases the heat transfer coefficient (the rate of cooling or heating facilities will be higher). On the other hand, due to high flow rate, coolant inlet to the heater (cooler) remains sufficiently hot (or cold), compared with the output. As a rule, as a lubricant in the pump is pumped environment.

Circulator pumps are working in a wide range of coolant temperature ranging from -10 0 C and ending with 95 0 C and used as a cooling and in heating systems. They are quite compact and quiet.

In addition to reducing energy consumption such pumps prevent such unpleasant phenomena, the low-temperature corrosion is occurring in the boiler due to the difference in temperature of the liquid-coolant inlet and outlet of the boiler.

Circulating pumps

Nov 24th, 2010
by admin.
Comments are off for this post

Is until now, that the installed have not installed circulating pumps in your home or businesses then vital things are missing. Based on the average household water usage, this can save close to 15,000 gallons of water each year and your hot water system will consume equal amount of energy as a 35-awatt lighting bulb. What’s more, there will never be run out of hot water and will never have to wait for hot water as it may wait to be used. Circulating pumps means instant hot water!

It needless to mention therefore that circulator pumps bring comfort and convenience to life in terms of money because certainly it saves a lot and saves the problem of having to wait long for hot water. These pumps also do not discriminate on the source of water, they accept water from any source be it piped water or water from a well.

Circulating pumps work quit simple by returning water into the hot water lines instantly using a built in timer and bypass valves. These valves open and allow the recirculation of cold water back into the main system waterlines. When the hot water arrives in the sink, the valves automatically close. This keeps the water in the pipes moves giving rise to availability of constant hot water. Therefore, no more waits and water wastage. The design of these pumps makes them extremely efficient to require less maintenance. The maintenance costs are extremely cheap anyway.

How about installations? This can be done within 20 minutes by a professional plumber. The pump is attached to existing waterline the contact valves are attached at the source of water (for example the kitchen sink of bathroom). That’s all that is needed to get the job started. The installation is done in one go. Meaning that there is no need to buy the various components separately, Circulating pumps come as a set and installation is done once.

One would imagine that a pump with such immense prospects will be hugely expensive. On the contrary, circulating pumps are relatively affordable. They are even cheaper than the conventional hot water systems. They come with extraordinary savings too. What’s with reduced electricity and water bills?

Taco 006 pumps – basic concepts and application

Oct 15th, 2010
by admin.
Comments are off for this post

Circulator pumps are often called liquid ring, because as a working fluid in them, mainly water is used, and sometimes machines with liquid piston. Eccentrically located rotor with radial blades (impeller) rotates in a cylindrical body, which is partially filled with liquid. Blades of the impeller rotation capture liquid and discard it to the body. As a result, inside the rotating ring of liquid formed, which gave the name of this type of pump.

Between the hub of the impeller and the ring of liquid occurs space, which is working cavity of the machine. This space is divided blades of the impeller on the individual cells of variable volume. With an increase in cell volume is the suction process, and when the – the process of compression and injection.

The compression process in the pump is accompanied by intensive heat removal from the compressed gas to liquid. Szhimaemogo temperature of gas at the pump outlet is little different from the temperature at the inlet and the working fluid is heated, so it must be constantly replaced. The working fluid is either into the suction pipe or through a hydraulic seal of the impeller into the working cavity of the machine and goes through the injection window, along with the compressed gas. The main advantage of Circulator pumps – easy work. The pump consists of a small number of parts – body, impeller and two end caps.

Circulator pumps with wet rotor

Oct 1st, 2010
by admin.
Comments are off for this post

Pumps with wet rotor – designed to maintain the circulation of water in the heating and hot water. All circulating pumps with wet rotor completely silent and does not require maintenance, because the cooling, lubrication is due to water. In addition, the impeller is made of heat-resistant PEX, not steel, which increases the life of the pump several times. Another plus – a small power consumption (from 28 W

Three-speed pumps are equipped with an electric motor with wet rotor and stator is protected. They are designed to work in pumping installations with recirculating water at a stable or slightly changing flow. Pumps are equipped with opposite connecting pipes of the same nominal internal dimensions.

Circulating pump for heating system is selected based on the conditions of its maximum heat load. In reality, such intense heat required only a few days a year. Thus, most of the year exceeds the pumping capacity needed. First, this means unnecessary power consumption. Secondly, if given the room temperature thermostatically controlled valves support, while reducing the filing of an unregulated pump on them cause excessive pressure drop, which causes the noise. In some cases the use of controlled circulation pump can reduce the consumption of energy by 50-60%. Given that this element of the system is operating in an average of over 5500ch. year, the economic effect noticeable, even for low-power installations.

Grundfos UP15-18B5 Bronze Circulator Pump

Oct 1st, 2010
by admin.
Comments are off for this post

Click on image to enlarge
GrundfosBrand: Grundfos

SKU #: 59896114

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$125.95 / each
Product Description: Bronze Circulation pumps UPSD Series 200 company Grundfos pumps are equipped with an electric motor with wet rotor and stator is protected with a layout type of “inline” with no seals, no maintenance-free and equipped opposite the connecting pipes of the same nominal internal diameters.

The Grundfos UP15-18B5 1/25HP Bronze Circulator Pump has 1/2″ Sweat connections and designed for heating systems.

Technical Specifications of Grundfos UP15-18B5:

  • Voltage: 115V;
  • Amperage: 0.74 Amps;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Watts: 85W;
  • Max Pressure: 145 psi;
  • Max Temperature: 230F;
  • Min Temperature: 36F;
  • Flow Range: 0-14.7 GPM;
  • Head Range: 0-13.9 ft;
  • Horse Power: 1/25HP;
  • Body: Bronze;
  • Connections: 1/2″ Sweat;

pex