3672/F112B1 reagent-free filtration unit

The industrial-size reagent-free filtration unit removes dissolved iron, manganese and hydrogen sulfide from water, along with turbidity and color. The housing is made of fiberglass with an internal polyethylene lining; inside are granular filter media, a supporting gravel layer and a drainage-distribution system, and on the outside is an automatic control valve.

Oxidation takes place on the media itself: iron, manganese and hydrogen sulfide convert to an insoluble form, are retained in the bed and flushed to drain during backwash, so no reagents are required. Housings from 24 inches are fitted with larger Runxin valves with 2″ and 3″ connections and capacity from 10 to 50 m³/h; some models are side-mounted, tapped into the housing wall. Backwashing such a filter requires a corresponding water reserve and drain throughput.

Design 3672/F112B1: 36×72″ housing, automatic Runxin F112B1 side-mount valve, up to 30.0 m³/h, side mounting. The valve is designed for filtration — reagent-free backwash of the load. Weight 117.35 kg.

Configuration within the line: vessel size 3672 (36×72″) with control valve Runxin F112B1. On the same vessel size 3672 (36×72″) the line also offers Runxin F77B1, Runxin F75A1 and Runxin F75Q1. The same control valve Runxin F112B1 is fitted on 4872, 4272, 6386 and 6367.

On vessel size 3672 the closest alternatives to Runxin F112B1 are Runxin F77B1 (valve capacity up to 18.0 m³/h instead of up to 30.0 m³/h, valve mounting top instead of side, weight 103.7 kg instead of 117.35 kg), Runxin F75A1 (valve capacity up to 10.0 m³/h instead of up to 30.0 m³/h, valve mounting top instead of side, weight 97.7 kg instead of 117.35 kg) and Runxin F75Q1 (valve capacity up to 10.0 m³/h instead of up to 30.0 m³/h, valve mounting top instead of side, weight 97.2 kg instead of 117.35 kg).