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Coil and double-shell Indirect Water Heater is some of the most important water heating equipment in buildings. Coil, double-shell, expansion, and cold water storage tanks are usually produced using galvanized steel plates or steel plates.
The thickness of the steel plate used in manufacturing coil, double-shell, fuel storage, etc. tanks must be calculated according to international standards for pressure vessels.
Another important factor for the thickness of steel plates used in the coil or double-shell hot Indirect Water Heaters is their operating temperature (temperature of the fluid inside) and corrosivity of water.
According to engineering standards, the temperature of warm tap water is usually between 50-60 and, therefore, the temperature of the warm tap water stored in a coil or double-shell tank must not fall below 50 degrees; otherwise, a bacteria with green color known as legionella, whose growth temperature is 25-50 will proliferate in the tank and cause extra costs of periodic washing of the tank for removing the bacteria.
In coil and double-shell hot Indirect Water Heaters, the welded seams must be covered with epoxy paint (thickness of 140 micrometers) or cold zinc painting (even when using galvanized plates).
To estimate the hot water capacity required by a building (coil or double-shell) considering the unit count, building use, demand factor, simultaneous consumption, and consumption rates, each residential unit requires 100-200 liters of capacity in the coil or double-shell hot Indirect Water Heaters.
Coil and double-shell Indirect Water Heater is some of the most important water heating equipment in buildings. Coil, double-shell, expansion, and cold water storage tanks are usually produced using galvanized steel plates or steel plates.
The thickness of the steel plate used in manufacturing coil, double-shell, fuel storage, etc. tanks must be calculated according to international standards for pressure vessels.
Another important factor for the thickness of steel plates used in the coil or double-shell hot Indirect Water Heaters is their operating temperature (temperature of the fluid inside) and corrosivity of water.
According to engineering standards, the temperature of warm tap water is usually between 50-60 and, therefore, the temperature of the warm tap water stored in a coil or double-shell tank must not fall below 50 degrees; otherwise, a bacteria with green color known as legionella, whose growth temperature is 25-50 will proliferate in the tank and cause extra costs of periodic washing of the tank for removing the bacteria.
In coil and double-shell hot Indirect Water Heaters, the welded seams must be covered with epoxy paint (thickness of 140 micrometers) or cold zinc painting (even when using galvanized plates).
To estimate the hot water capacity required by a building (coil or double-shell) considering the unit count, building use, demand factor, simultaneous consumption, and consumption rates, each residential unit requires 100-200 liters of capacity in the coil or double-shell hot Indirect Water Heaters.
A.For all hot Indirect Water Heaters such as the coil or double-shell tanks, we must implement safety valves for pressure and temperature.
B.The water overflow tube must be extended from the expansion tank on the rooftop to the boiler room.
C.If the inner shell of a double-shell tank or the hot water coil of a coil tank is punctured, the water in the supply system gradually leaks into the heating system and water will start overflowing from the expansion tank on the rooftop.
D.All diesel fuel Indirect Water Heater must have a vent tube.
Indirect Water Heater are made of different materials such as polyethylene, stainless steel, galvanized plates, and fiberglass to meet different applications. When selecting a storage tank, we need to consider the type of stored fluid, operating temperature and pressure, application, etc. to prevent a number of issues.
Here we explain the Indirect Water Heaters used in buildings considering their materials, pros and cons, applications, and usages.
Overall, Indirect Water Heaters are used to store different liquids such as drinking water, hot water, chemicals (acidic or alkaline), fuels (oil, diesel, etc.), various fluids and granules for long periods of time.
Efficiency is our motto, your profit our priority
Ft² 0.0982 = inch 8/3 per foot of pipe length
1 Gal. (am.) = 3.785 Lit
Ft² 0.1309 = 2/1 inch per foot of pipe length
1M3 =35.315 Ft3
Atm=10.331 meter the height of the water tower
1Atm = 14.7 PSI
Pre-sale Services : Engineering consulting Calculating and Determining the capacityWarranty and after-sale Services : 30 months DamaTajhiz golden warranty + 10 years technical support
Pre-sale Services : Engineering consulting Calculating and Determining the capacityWarranty and after-sale Services : 30 months DamaTajhiz golden warranty + 10 years technical support
Pre-sale Services : Engineering consulting Calculating and Determining the capacityWarranty and after-sale Services : 30 months DamaTajhiz golden warranty + 10 years technical support
Pre-sale Services : Engineering consulting Calculating and Determining the capacityWarranty and after-sale Services : 30 months DamaTajhiz golden warranty + 10 years technical support
Pre-sale Services : Engineering consulting Calculating and Determining the capacityWarranty and after-sale Services : 30 months DamaTajhiz golden warranty + 10 years technical support
Pre-sale Services : Engineering consulting Calculating and Determining the capacityWarranty and after-sale Services : 30 months DamaTajhiz golden warranty + 10 years technical support
Pre-sale Services : Engineering consulting Calculating and Determining the capacityWarranty and after-sale Services : 30 months DamaTajhiz golden warranty + 10 years technical support
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