The coalescer elements of the 1st stage break the fuel-water emulsion and remove solids by microfiltration simultaneously. The water coalesced into large drops flows into the water sump.
The 2nd stage separates finest water drops which are still in suspension in the fuel. The water sump can be drained either automatically or manually. The degree of contamination is monitored by a differential pressure gauge. The venting effects automatically. The vessel is secured against over-pressure by a pressure relief valve. The maximum flow rate for this specific vessel is 4250 ltr/min. Please contact us for your specific flow rate or application.
The housing consists of a horizontal pressure vessel with welded-on dished bottom and a water collecting sump welded on the bottom side. The dished cover is fastened to the flange ring of the housing by means of swing bolts. The sealing is effected by an o-ring.
For transport and assembly two lifting lugs are welded on. The vessel is inside coated according MIL-C-4566 F with a media resistant coat. Outside the vessel is twice prime coated and finished with a top coat.
Behind the inlet 17 coalescer elements (1st stage) are mounted on the intermediate plate. The permanent separator element (2nd stage) is centrally arranged below the outlet nozzle.
Design and certification of pressure vessels is governed by design codes such as the ASME Boiler and Pressure Vessel Code in North America, the Pressure Equipment Directive of the EU (PED).
Also see: Aircraft Refueling