
Osmosis 500 l/h, two 4040 housings, 0.75 kW pump
SWT ROL-500L (2/4040) is a commercial reverse osmosis unit with a nominal capacity of 500 l/h for polishing treatment of domestic drinking water and natural water. It reduces total mineralization and removes hardness salts, heavy metals, organic matter, bacteria, and viruses, bringing the water to the required standards. Typical conversion rate on fresh water is up to 75%.
In the series, this is the larger of two versions: two 4040 membrane housings instead of one on SWT ROL-250L give twice the permeate — 500 l/h versus 250 l/h. The gain is achieved without enlarging the frame or fitting a more powerful pump: the dimensions are the same 320×450×1520 mm, the pump is the same 0.75 kW, so the unit takes up the same floor space and connects the same way. Only the raw water intake grows — 930 l/h in production mode versus 790 l/h — along with the dry weight: 52 kg versus 42 kg.
Mechanical pre-treatment ahead of the membranes is a Slim10-size cartridge. In hydraulic flush mode, water flow rate reaches up to 1570 l/h; the supply line and drain are sized to this value, not to the operating one. Connection dimensions: raw water inlet G¾", concentrate outlet G¾", permeate outlet G½".



Tell us about your site — our engineer will prepare a process design, a specification and a quotation within one business day.