Subscribe to our mailing list below:
Available in 5", 10" (Shown in pictures), 20", and 20"XL. The bigger the vessel, the more water they will absorb, prolonging the service interval.
Unique to Oilybits, these dessicant vessels are designed for removing moisture from air or gases, to prevent contamination of substances downstream. The vessels are supplied with an internal distribution system, which effectively channels passing air / gases through a body of Activated Alumina Spheres, these Spheres are Micro-Porous, and will rapidly absorb up to 17% of their own weight in moisture from the air / gas passing through them. The Spheres can be dried in an oven at 200c to regenerate them for re-use. To determine when they are dry, weigh the Spheres before baking, and then weigh them again after baking, once they no longer lose weight, they are dry.
These vessels are particularly useful for biodiesel producers, who bubble-dry their feedstock and biodiesel to remove methanol, and water. In the case of Water removal, dry air absorbs more water from the feedstock / biodiesel without adding water when the moisture potential reaches very low levels. In the case of methanol removal, by using dry air to drive it out, the methanol can be condensed and reused, without being contaminated with Water from the air.
The service interval of the vessel will depend on the level of saturation of the air, if you are bubble drying at 0 Celcius, then there is very little moisture in the air, however, if you are bubble drying at 30 Celcius, then 1 cubic meter of air could contain the maximum 30 grams (30ml) of water, subject to local conditions. The service interval of your vessel will therefore depend on its media capacity and the moisture potential of the air.
See chart below for moisture saturation levels of air at different temperatures;
Also available, to determine when the media is exhausted, is a "Moisture Saturation Indicator Module", this fits to the Dessicant Vessel outlet and turns green when moisture starts to come through the Dessicant Vessel. For details on this product click HERE
Replacement "Activated Alumina" Media can be found HERE
For all filters with screw-on bowls we always recommend the use of Silicon O'Ring Grease to aid tightening of the bowl, preventing pinching & scuffing and thus prolonging the life of the O'Ring
(All prices include VAT)
10 Inch Vessel -
£50.00 (£41.67 ex. VAT)
20 Inch Vessel -
£125.00 (£104.17 ex. VAT)
5 Inch Vessel -
£45.00 (£37.50 ex. VAT)
Product Code: 1031BBX403