AQUALOOP AL-direct water treatment system for drinking water parameters
Intewa brand direct ultrafiltration unit
AQUALOOP AL-direct is a state-of-the-art ultrafiltration system based on membrane technology that effectively removes micro-organisms, bacteria and viruses from rain, river, spring or post-process water. The unit is designed for the filtration of raw water, e.g. from rivers, lakes and rainwater, which is particularly important in situations of sudden water shortage.
It is suitable for households, industrial facilities, schools, camping sites or emergency water supply systems. It can be used for civil protection purposes in emergency situations and during periodic water shortages.
Thanks to the 'direct filtration' design, the unit does not require a clean water buffer, eliminating the risk of secondary contamination. It is a solution that provides hygienic water for drinking, irrigation, industrial processes and as a pre-stage before reverse osmosis.
1. 15-litre filter housing with ultrafiltration membrane unit
2. inlet-side connection unit including:
-Pipe section including gasket / compression ring and tee with 2/3 connection
-Ball valve ¾" ready for connection with screw connection 1/3
-¾" ball valve ready for connection with screw connection 1/3
3 -Outlet side connection assembly with:
-a 90° bent pipe section with gasket/clamping ring, ¾" ball valve ready for connection with screw connection 1/3
-Backflow coupling 2/3
4 -Breather coupling:
-Ball valve ¼"
 | 1. raw water inlet 2. filter housing 3 UF membrane (1 of 3) 4 Central pipe (1 of 3) 5. distributor 3/1 6. clean water outlet |
Technical data Aqualoop AL-direct
Membrane area of 18m2 - removes bacteria, viruses and particles >0.02 μm
Filtration up to 60 l/min
Compact SS304 stainless steel design for rapid installation
Working pressure up to 6 bar
Membrane service life up to 10 years - German quality
Hygienic certification and compliance with EN ISO 9308-1
Gravity or pressure pump operation possible
Simple installation and easy mechanical/chemical maintenance
Parameter | Value |
|---|
Model | AL-direct |
Housing height | 810 mm |
Housing diameter | 219 mm |
Housing material | Stainless steel SS304 |
Operating pressure max. | 6 bar |
Transmembrane pressure | 3 bar |
Weight | 12 kg |
Number of membrane packs | 3 pcs. |
Total membrane surface | 18 m² |
Fibre material | PE, capillary |
Average pore size | 0.02 µm |
Filtration capacity | up to 60 l/min at 3.5 bar |
Operating temperature range | 0-40 °C |
Service life of membrane | up to 10 years |
Certifications | Hygiene declaration, HUS Salzburg bacteriological test, EN ISO 9308-1 |
Reduction of microorganisms | Bacteria to log 7, viruses to log 4*. |
* For more information, see manufacturer's instructions
Performance of Aqualoop AL-direct in gravity operation

Water column height (ΔH) | Max. flow rate [l/min] (new condition) | Operating flow rate [l/min] (operation) | Daily consumption [l/day] |
|---|
0.5 m (50 mbar) | 2.1 l/min ≙ 3,000 l/day | 0.6 l/min ≙ 864 l/day | 864-3000 |
1.0 m (100 mbar) | 6.0 l/min ≙ 8 640 l/day | 1.8 l/min ≙ 2 592 l/day | 2 592-8 640 |
2.0 m (200 mbar) | 9.6 l/min ≙ 13,824 l/day | 3.0 l/min ≙ 4 420 l/day | 4 420-13 824 |
3.0 m (300 mbar) | 13.2 l/min ≙ 19 008 l/day | 3.6 l/min ≙ 4 800 l/day | 4 800-19 008 |
Note: the actual capacity depends on the quality of the raw water and the degree of membrane fouling.