1665/F67C3 reagent-free filtration unit

The reagent-free filtration unit removes dissolved iron, manganese and hydrogen sulfide from water, along with turbidity and color, bringing the water to the required standards. Inside: a fiberglass housing laminated with polyethylene on the inside, an automatic control valve, granular filter media, a supporting gravel layer, and a drainage-distribution system.

The media oxidizes dissolved iron and manganese directly: passing through it, they convert to an insoluble form and precipitate as sediment, which is retained within the media bed and flushed to drain by backwash — no reagents are consumed. Housings from 14 to 21 inches are sized for flow rates that require a larger volume of media and faster backwashing: in this group, 2″ Runxin models rated up to 10 m³/h are added alongside the 3/4″ and 1″ valves, with top valve mounting.

Design 1665/F67C3: 16×65″ housing, automatic Runxin F67C3 valve with water meter, up to 4.5 m³/h, 1" connection, top mounting. The valve is designed for filtration — reagent-free backwash of the load. Weight 26.1 kg.

Configuration within the line: vessel size 1665 (16×65″) with control valve Runxin F67C3. On the same vessel size 1665 (16×65″) the line also offers Runxin F67P, Runxin F75Q1, Runxin F71B, Runxin F67G and others. The same control valve Runxin F67C3 is fitted on 0844, 1054, 1344, 1252 and others. Among the units on vessel size 1665 (16×65″) this is the only one with purpose — filtration.

On vessel size 1665 the closest alternatives to Runxin F67C3 are Runxin F75Q1 (valve capacity up to 10.0 m³/h instead of up to 4.5 m³/h, connection 2" instead of 1", weight 29.25 kg instead of 26.1 kg) and Runxin F71B (valve capacity up to 2.0 m³/h instead of up to 4.5 m³/h, connection 3/4" instead of 1", weight 25.6 kg instead of 26.1 kg).