Magcvad

Dearation
The Solution
The word Dearation describes the removal of dissolved gases from liquids such as air from water. When water is heated or the pressure reduced gas Microbubble are released into the system. Microbubbles can be the cause of major problems such as pump failure, corrosion, and energy loss.
As an aid to system cleaning you should specifically install Magnetic Filtering. The MagVent range has been developed by Fabricated Products (UK) to remove potentially damaging particles from both hot and chilled water systems. It is comprised of a very fine stainless-steel strainer capable of stopping debris down to 5 micron. Inside the body of our unit is also a high-gauss magnetic rod, these two elements combined together providing a very powerful cleaning device. As the water flows through the unit the magnetite is attracted to the magnetic rod and even the smallest particles down to 5 micron and less are collected. Through simple & cost effective maintenance the magnetic rod is then removed. All magnetite which flows through the unit will be removed 100%.
Dirt Removal
The MagVent is also used to remove dirt particles from heating and chilled water systems. Installed it will eliminate all dirt particles down to 5 microns and less.
Features and BenefitsHigh-gauss magnetic rod installed to remove all magnetite in the water system.Greatly reduced commissioning times after initial fill.Longer system life (through air and dirt elimination)Low-pressure dropBi-directional flowMaximum Temperature. 110 °c. Higher temperature units available on request.Tested to 21 barAll stainless steel vessel Air collects in the air chamber before being automatically ventedFloating dirt can be removed by opening the valve situated under the air vent.The same valve is used for releasing air when filling the systemLarge collector ensures that flushing is only required now and thenCan be flushed while fully operational (no need to shut down)An internal stainless steel concentrator to aid removal of air and dirt.Smooth surfaces with Stainless Steel lead to lower friction Stainless will not degrade in service thanks to its excellent resistance to corrosion. Stainless Steel is extensively more resistant to oxidation by water and biocides than carbon steel. Therefore Stainless Steels are not contributing to oxidation, sludge’s etc.;Thermal properties of stainless steel. They are far superior to iron or carbon steel. Maximum flow rate up to 3m/sec
Stainless Steel: Safe, Clean, Efficient and HygienicStainless is highly resistant against micro bacteria attacks plus lower bacteria colonizationHygienic and cleanable material (Smooth surface internally & externally). Due to their very high passive film (protecting the surface)Lower adhesion of deposits (dirt and sludge) with the smooth internals of Stainless Steels. Sludge & magnetite is washed/ removed from the collection chamber far easier than the inferior iron/ carbon steelStability, Stainless Steel is basically inert in water. Leaching of alloying elements is within safe limits. As a result, they provide better quality water. No turbidity problems. All resulting in less bacterial slime, low energy consumption, low cleaning costs, good for conveying wet solids.Excellent durability and abrasion resistance, as Stainless Steels are resistant to crevice corrosion, cavitations and wear in pure and polluted waters as well as in atmosphere (even polluted), they are cost effective for long term use and do not cause environmental pollution.
MagVent location
Commissioning
This combined unit (our model ref SS MAGCVAD-R) must be installed at the hottest part of the system (before the pumps).
In a heating system this is the main flow from the boilers.
In a chilled water system the unit must be located in the return close to the chiller.
The static head must not exceed 30 metres in a Heating system.
Maximum static head must not exceed 15 metres in a chilled water system.
N.B. if the static head is greater than these figures the efficiency of the SS CleanVent & MagVent is reduced
The MagVent requires no special commissioning. All units are fitted with a ½” 3 way valve, which should be used when initially filling the system. The same valve is used for draining off floating “scum” and also prevents the possibility of dirt clogging the air vent.
Maintenance will be required to remove trapped dirt and sludge. Opening the ball valve at the bottom of the unit does this. The valve may be opened while the system is under pressure.
Maintenance- Removing & Cleaning the Magnetic Rod
Flushing the MagVent.
Isolating valves should be installed either side of the connecting flanges on the SS MagVent. Close the two isolating valves. Open the ball valve located on the bottom of the MagVent. Scalding is a danger at high pressures and temperatures. Ensure that the water is safely piped to drain before opening the valve. Then remove the 4 bolts located on the single front blank flange. Then remove the blank flange with the magnate attached. Extreme care should be taken at this point as the magnate is very powerful. Remove all attached debris on the magnetite by wiping clean. once the magnate is clean and free from debris re-insert into the main body of the MagVent unit. Tighten all bolts on the flange; close all valves on the unit. Open the two isolating valves (slowly) and check for leaks (around the gasket on the blank flange).
The system pressure will flush the dirt out. Leave the valve open until the collected dirt has been flushed out; repeat this operation every few days or weeks (depending on the state of the water). once the water is clear it may be possible to drain every 6 months or so depending on the size and age of the system.
It is still very important to flush the dirt separator as part of the standard maintenance programme through the valve on the bottom of the unit.
If a combined unit is installed (Air & Dirt) most of the dissolved air will be removed in a few days. However this may vary from system to system. In large systems it may take several weeks..
Flanges
Drain valve
All flanges are drilled to BS 4504 PN16 as standard.
All models are supplied with a ball valve for draining the collected dirt and sludge.