Other features of the expansion tanks

Expansion tanks may be used to prevent damage to the system from water hammer. This phenomenon occurs in the pipeline at the sudden turn off or turn on the pump, quick opening or closing the valve. Loads can be many times greater than static and it can lead to the destruction of pipelines, threaded connections or plumbing devices. To avoid this, and given that the volumetric changes in the pressure variations are small, are encouraged to use expansion tanks of small capacity 0.2 liter

Amtrol WELL-X-TROL Tanks - WELL-X-TROL Tanks - WELL-X-TROL Well

Also, tanks can be used as a tank with a fire liquid fire suppression systems, and as back-up tanks in those cases where the electricity is turned off. Hydraulic tanks are used not only in domestic but also in industrial and agricultural water supplies. At the same household series is designed for working pressures up to 6 bar and the Professional Series - up to 16 bar.


The design of the expansion tank is shown in Well-X-Trol Well Tank

Before proceeding further to the detailed description and principles of selection of tanks, you need to say a few words about the main elements of these devices the membrane.

Amtrol WX-202 Well-X-Trol

Choosing energy-efficient pumps for water wells and other needs

In the water supply borehole Circulating Taco 007 pumps play a major role in Tacoity consumption. Currently, their market is represented by numerous companies pumping near and far abroad. The bulk of the downhole Circulating Taco 007 should be allocated Grundfos, Taco, Espa, Little Giant, Pedrollo, Speroni, Dab et al.

Deviations of the parameters of Grundfos UP15-10SU7P/TLC pumps in operation

Members of pumping equipment have a choice, and often, considering proposals analogues, preferred option with a lower initial price, paying no attention to the cost of subsequent maintenance. At the same time selecting the best option must be done from a position of minimizing the total amount of expenses for the period of the equipment. In this method of analysis will help the consumer life cycle cost of equipment, in which the main role belongs to the cost of the pump life. The amount of energy and materials used by the system depends on the type of pump, the type of installation and operation method of the system. These factors are interrelated.

Moreover, they must be carefully matched to each other, providing for its work, the lowest energy consumption, the lowest operating costs, other benefits. The initial purchase price is a small part of the cost of "life cycle" for commonly used pumps. Analysis of the life cycle cost is a management tool and can help companies minimize the amount of costs, maximize energy efficiency of pumping systems and determine the most effective solution. Components of the life cycle cost analysis typically include: initial cost, installation costs, fees, energy costs, maintenance costs, repair costs, downtime costs, environmental costs, the cost of recycling.

Grundfos UP15-10SU7P/TLC with Comfort Valve

National and global markets become more competitive, organizations must continually look for ways to cut costs to improve profitability of their activities. Work equipment company deserves special attention as a source of cost reduction, especially as a source to minimize energy consumption and reduce the downtime of the enterprise. As an example, consider two alternative pumping equipment for installation in the borehole. The first option - the pump Little Giant 10-120-100, second option - the Grundfos pump 26-99.

Grundfos mq3-35 – a power pump for a great plumbing syst

Based on the high degree of reliability, due to reliable protection against surges and voltage fluctuations, overheating, overloading, "dry run", etc., the service life of Grundfos pumps more than two times higher than that of pumps Little Giant. To begin to compare the cost of the designed equipment: Little Giant 10-120-100 - 1493 Euro, and the SP 125-5-A - 7940 Euro.

Grundfos 26-99 pumps for long life your heating system

PEX tubing pipe and household use

PEX polymer is a material obtained by cross linking the carbon atoms using three different methods. These methods result in PEX-a, PEX-b, PEX-c. Even though the same material is obtained by using these manufacturing processes, the difference is in PEX costs. It costs a lot less to fabricate PEX-a and PEX-b than it costs to make PEX-c.

Many times when using PEX tubing people can see that the resistance of this material is not quite as good as it should be. Used in bathrooms PEX has a major disadvantage.

When the cold pipe is placed next to the hot pipe, water will start forming on the cold pipe, and it will eventual fall on the floor. When living in a building, this means that the neighbors living downstairs will get a permanent wed wall from the pipes used above. The problem is usually solved with isolation on top of the polymer pipe. This means additional costs and additional work. If the bathroom has in wall pipes, the walls will have to be removed so that the plumber can reach the pipes.

Even so, PEX supply stores still have a lot of good things to say about the material they are selling. PEX supply companies have an increased demand for this product only because it is much cheaper than traditional metal pipes, and it is a lot easier to install and use, requiring far less fitting tools.

But costs can reach the same amount, when thinking of permanent replacements of the tubes. If the pipes work perfectly for the cold water installations, in hot water these pipes can cause a lot of problems.

What polymer pipes are really good for is electrical cabling. Some cables need to be placed on the exterior walls inside the hose, thus representing a danger to children or even to adults. Polymer tubes can hold the cables together in an isolating layer.

Honeywell Thermostats for home needs

Temperature thermostat CM707
touch screen with a 7-day program and a large LCD display
Room temperature controllers honeywell
CM707
CM707 Price with VAT:
89,44 EUR

Thermostat Honeywell CM707 is a modern programmable room thermostat, built on the proven concept of the series thermostats Honeywell CM20. In order to further simplify the installation and use of the thermostat, the product now has an extremely wide liquid crystal display and convenient click "OK".

Honeywell THM5320R1000 thermostat, YTH5320R1000 (kit) and YTH5320R1017

Designed for baseline boiler controls, valves, band, circulation pumps, thermoelectric actuators, electric heaters, heat pumps, etc. in heating systems.
Additional features

* The program is stored in a permanent (protected) memory
* The service "installation" mode Focus Pro thermostat settings
* Time Format: 24 hours

Honeywell Focus PRO for heating and cooling

When installing plumbing pipeline

1. Installation of PEX plumbing pipeline mainly on butt welding. Flange connections to put only where adherence to the connecting pipes, fittings and plugs, as well as material lines, where it is necessary for the installation conditions.
2. Laying PEX plumbing pipeline must be made at elevations specified in the installation drawings, while liquid PEX plumbing pipe should be installed in compliance with slopes that provide fluid flow during transportation. Gradient, is taken within 0,002-0,005.
3. Fixing plumbing pipeline carry on hangers, brackets, braces or other types of steel, fabricated on site. The distance between the supports to take: for steel plumbing pipeline 2-4 meters for non-metallic plumbing pipeline 1-2 pm
4. Fixture on the non-metallic plumbing pipeline mount separately to plumbing pipeline did not experience additional load.
5. The distance from the axis of PEX plumbing pipe to the wall in mm taken depending on the nominal bore in mm
6. The smallest radius of bending pipes allowed:
a) for bending of tubes with padding it with sand and heating at least 3.5 outer pipe diameters;
b) for bending of tubes on the machine without packing sand (cold) not less than 4.0 outer diameter pipe;
c) for a plumbing pipeline when the bending radius of less than 2.5 outer diameters of pipes and plumbing pipeline with a nominal bore exceeding 100 mm manufacturing the knee bends and welded from individual sectors.
7. When connecting pumps and devices mount plumbing pipeline to produce such a way that the weight of plumbing pipeline and fittings are not transmitted to the pumps.

When testing equipment and plumbing pipeline

1. Mounted equipment shall be subjected to external examination and test the strength and density.
2. Test equipment to produce the hydraulic method in accordance with the technical conditions specified in the drawings of devices. The test is conducted in the presence of the TCI, and, if necessary, and a representative of the water inspection.
3. Apparatus with agitators and pumps are tested at idle for 24 hours and the working speed (when filling with water) for 12 h.
4. Mounted plumbing pipeline shall be subjected to external examination, testing the strength and density, and, where necessary, cleaning or purging.
5. Testing of plumbing pipeline can be hydraulically or pneumatically. Typically, the test plumbing pipeline should be carried out hydraulically.
6. The test tube is disconnected from the apparatus and other plumbing pipeline plugs with shanks.
7. Hydraulic pressure test the pipeline on the strength and density simultaneously, test pressure must be equal to 1.25 working pressure, but not less than 2 atm.
8. At the top point of the test pipe should be installed air vent, and lower - purge before filling.
9. The test pressure is held for 5 minutes, after which it drops to desktop, when this pressure is inspection of the pipeline and tapping the welds with a hammer weighing not more than 1,5 kg.
10. Pneumatic test plumbing pipeline is the strength and density. When testing the strength of the test pressure must be equal to 1.25 of the working pressure but not less than 2 atm. The test pressure is held for 5 minutes, after which it drops to desktop. When tested on the density of the test pressure must be equal to the worker.
11. Pneumatic testing technology plumbing pipeline pressures to produce up to:
with the diameter of the pipeline up to 200 mm. - 20 atm
the diameter of the pipeline from 200 to 500 mm. - 12 atm
with the diameter of the pipeline of over 500 mm. - 6 atm
12. For installation on a cast-iron plumbing pipeline valves pneumatic test pipeline is allowed to test pressure of not higher than 4 atm.
13. When the pneumatic test pressure in the plumbing pipeline should rise gradually from inspection of the pipeline when the following pressures:
for plumbing pipeline operating pressures up to 2 atm - 0 6 test pressure;
for plumbing pipeline operating pressures above 2 atm - 0,3 and 0,6 of the test pressure.
When pneumatic testing hammer tapping the pipeline under pressure, is not allowed.
14. plumbing pipeline, transporting toxic and explosive products, except for checking the strength shall be tested for density with the definition of pressure drop in the plumbing pipeline during the test. Test duration of at least 12 hours
15. The pipeline is recognized to pass the test on the density, if the pressure drop in it no more than the quantities listed in the table.

Domestic Taco pumps. How to choose right?

Pumps of all types presented on the market today differ in the first place, technical characteristics. In addition, the pumps vary in purpose, principle of operation and size.

Main technical characteristics to which attention should be paid, by choosing an Taco pump - his head and power.

• Taco 007 SF5 - Taco 007 Stainless Steel Circulator Pump
• Taco 007 F4 - Taco 007 Cast Iron Circulator Pump
• Taco 007 F3 - Taco 007 Cast Iron Circulator Pump
• Taco 007 F5-7IFC - Taco 007 Cast Iron Circulator Pump with IFC (Integral Flow Check)

Pump head determines the maximum depth at which it can pump water. Performance of the pump, its ability to pump a certain amount of fluid per unit of time depends on its power.

The pressure is calculated as follows: first calculate the distance from the source water to the level of water-points. For example, if the well is in the area is filled with water to a depth of 20m, a crane located on the second floor of the house, at a height of 4 m, the required distance will be 24. Then make corrections on the coefficient of head loss of the jet, due to friction, the value found in this case is multiplied by 1.15. Then add the length of the pipeline, from home to the wells, for example, 7 meters. Thus, a value indicating the minimum allowable pressure pump. In the calculation of this value is 34, 6 pm

Based on the average liquid flow rate is determined by the required pumping capacity. Suppose, for the needs of one person to 800-1000 liters of water per day. The resulting number is multiplied by the number of inhabitants of a country house. For example, a family with two children will spend a day about 3600 liters. We add to this flow of water for irrigation area of 500 liters per day per hundred square meters, with an area of garden in five hundred parts consumption is approximately 2500l.

Eventually creating a sum / 3600 2500 = 6100 liters or 6.1 cubic meters. m / s gives a rough idea of the required quantity of water consumed on the farm and, therefore, helps to orient the choice of the pump power required.

Regardless of all its features, any Taco pump provides comfortable accommodation in a suburban environment at relatively low cost.