SWT ROL-250L (1/4040) - reverse osmosis unit with pump (up to 0.25 m3/h)

SWT ROL-250L (1/4040) is a commercial reverse osmosis unit with a nominal capacity of 250 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%.

This is the smallest model in the series: one 4040 membrane housing versus two for SWT ROL-500L, and half the capacity — 250 l/h instead of 500 l/h. The versions do not differ in dimensions or pump: the same 320×450×1520 mm frame and the same 0.75 kW pump, meaning there is no advantage for the smaller one in footprint or connections. The difference is visible in raw water flow rate — 790 l/h in production mode versus 930 l/h — and in dry weight: 42 kg versus 52 kg.

Mechanical pre-treatment ahead of the membrane is a Slim10-size cartridge. In hydraulic flush mode, water flow rate rises to up to 1330 l/h, and 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".