How Does Air & Dirt Enter the System?
Before a system is filled with water, air is present. Therefore, it is likely that when the water is being pushed through the system, air will remain in the bends and pipe crevasses. Air can also remain when a system is being repaired or drained down and refilled.
Dirt can enter the system in several ways. One of the main ways is through the presence of the air. The air in the system can cause corrosion of the metal pipe, this corrosion can cause the formation of substance called Magnetite. Magnetite can be seen if you have ever bled your radiators, it is the black sludge like substance. Dirt can also enter the system when the system is first installed or being repaired, for example from the pipe being cut.
How Much Air Is Dissolved In Water
The maximum amount of air that can be dissolved in water is defined in Henry’s Law.
Solubility of air in water follows Henry’s Law – “the amount of air dissolved in a fluid is proportional to the pressure in the system” – and can be expressed as:
c = pg / kH
where
c= solubility of dissolved gas
kH= proportionality constant depending on the nature of the gas and the solvent
pg= partial pressure of gas (Pa, psi)
The solubility of oxygen in water is higher than the solubility of nitrogen. Air dissolved in water contains approximately 35.6% oxygen compared to 21% in air.
How Can Stourflex Help Solve Your Air Dirt Problem?
Stourflex can offer the following products to aid with the removal of air and dirt in your system.
JP502 Low Pressure Drop Air Separator
Micro Bubble Air Separator manufactured from corrosion resistant 316L stainless steel fitted with silumin swivel flanges drilled to BS4504 NP10.
https://stourflex.co.uk/products/jp502/
JP504 Low Pressure Drop Air & Dirt Separator with Built in Strainer
Micro Bubble Air Separator with built in strainer manufactured from corrosion resistant 316L stainless steel fitted with silumin swivel flanges drilled to BS4504 NP10.
https://stourflex.co.uk/products/jp504/
JP601 Air Separator
Micro Bubble Air Separator consisting of carbon steel body with stainless steel diffuser screen. RAL 9006 white aluminium paint finish. Flanges drilled to BS4504 NP16.
https://stourflex.co.uk/products/jp601/
JP602 Dirt Separator
Dirt Separator consisting of carbon steel body with stainless steel diffuser screen. RAL 9006 white aluminium paint finish. Flanges drilled to BS4504 NP16
https://stourflex.co.uk/products/jp602/
JP603 Air & Dirt Separator
Micro Bubble Air and Dirt Separator consisting of carbon steel body with stainless steel diffuser screen. RAL 9006 white aluminium paint finish. Flanges drilled to BS4504 NP16.
https://stourflex.co.uk/products/jp603/
JP603M Air & Dirt Separator with Magnet Rod
Micro Bubble Air and Dirt Separator consisting of carbon steel body with stainless steel diffuser screen and Supermagnet with 11,500 Gaussian Power. RAL 9006 white aluminium paint finish. Flanges drilled to BS4504 NP16.
https://stourflex.co.uk/products/jp603-magnet/
JP604 Hydraulic Separator
Balance Tank complete with Air & Dirt Separator consisting of Carbon Steel body with Stainless Steel diffuser screen. RAL 9006 white aluminium paint finish. Flanges drilled to BS4504 NP16.
The JP604 balances the differences in volumetric flow between primary (flow) and secondary (return) systems, i.e., if the demand is greater than the supply some of the return water will merge with the supply, if however, the supply is greater than the demand some of the supply water will join the return. This will produce an energy saving by encouraging the pumps or chillers to shut off or slowdown in area’ s of the system with low or no requirements, to accomplish this the flow rates of different circuits must be independent, the flow from one must not affect the flow from another, this is known as hydraulic separation.
https://stourflex.co.uk/products/jp604/