The boiler blowdown valve is used to maintain the required quality of boiler water, it is integrated into the heating system by means of a flanged or welded connection. Valves of this type are of continuous action - for cleaning the upper circuit and periodic - for the lower level. Available with both manual and automatic controls. Also, continuous boiler valves allow you to adjust the readings of salinity, and periodic - to remove sludge.<\/p>\n
The company "Artesia" offers fittings of the B25 series. It is suitable for heating systems with pipe diameters of 15, 20 and 25 mm. Valves are made of steel, they can only be used with an aqueous working medium. Depending on the design, they can withstand from 16 to 100 bar.<\/p>\n
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Technical characteristics and parameters of the boiler purge valve.<\/p>\n
The range of Artesia includes 5 models of permanent valves: x16, x25, x40, x63 and x100 in accordance with the nominal pressure in the system. Boiler continuous blowdown valves are used to maintain the desired salinity (solids) and alkalinity levels required to produce clean steam.<\/p>\n
The valve consists of a body, a cover, a spindle with a rising fine thread and an adjusting ring showing the opening of the valve on a scale. Also, the design of the valve includes a seat, disc, stuffing box, seal, flanges and clamping components for fixing in the pipeline. Adjustment of the process according to the required quantity is carried out by means of a special spool, which is equipped with a constant blowdown valve of the boiler.<\/p>\n
It should be noted that valves of this type are not shut-off valves, therefore, a valve should be additionally integrated into the heating circuit, which ensures that the flow of the working medium is shut off. Consider, using the example of the B25 1X1-X16 model, the symbol for parts:<\/p>\n
B25 - type of reinforcement.<\/p>\n
1 - direct flow direction.<\/p>\n
X - connection format (1 - flange, 2 - welded).<\/p>\n
1 - flywheel control.<\/p>\n
X - case material (3 - alloy steel, 4 - carbon steel).<\/p>\n
16 - nominal pressure.<\/p>\n
Depending on the materials of manufacture of structural elements, continuous valves can operate at a temperature of the working medium from -10\u00b0C to 450\u00b0C or 570\u00b0C. The valves we sell comply with the normative documents EN 1092-1 (flanges), EN 12627 (weld ends), EN 558-1 (length), EN 12266-1 (tests), EN 12516-1 (working pressure and temperature).<\/p>\n
Why is it important to equip the heating system with a constant boiler blowdown valve? The fact is that when steam is generated, the concentration of salts and various dissolved compounds increases. As a result, this leads to foaming and contamination of the consuming equipment. On the other hand, during evaporation in the steam generator (this process is continuous), the density, conductivity and hardness of the feed water increase.<\/p>\n
To avoid breakdown, it is necessary to maintain the appropriate mineral composition of the liquid in the steam generator. It is provided by continuous cleaning of the units. This procedure involves the discharge of a certain amount of water and its removal to the drainage.<\/p>\n
Advantages of continuous valves:<\/p>\n
Maintaining salinity levels as close as possible to those required by regulatory documents.<\/p>\n
Minimization of heat losses and costs for chemical water treatment.<\/p>\n
Ensuring the production of clean steam.<\/p>\n
Reducing the likelihood of blocking valves, scale formation, system contamination.<\/p>\n
Minimization of costs for repair and maintenance of equipment due to the maintenance of specified water properties.<\/p>\n
There is also an intermittent boiler blowdown valve used to eliminate sludge. Such taps are used time by time for manual cleaning of heating equipment. The peculiarity of this fitting lies in the quick opening, which allows you to create a water funnel that draws sediment from the boiler.<\/p>\n
The design of these valves is full bore, due to which a high throughput and low resistance of the working medium is achieved. Also, these valves are equipped with drain screws. Cleaning is recommended every 8 hours with a minimum steam extraction, since in this case the sludge accumulates in the lower part of the unit.<\/p>\n
To place an order at Artesia for boiler fittings, call or write an e-mail.<\/p>","protected":false},"excerpt":{"rendered":"
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