
21×62″ housing, Runxin F75Q1 valve
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 2162/F75Q1: 21×62″ housing, automatic Runxin F75Q1 valve, up to 10.0 m³/h, 2" connection, top mounting. The valve is designed for filtration — reagent-free backwash of the load. Weight 46.1 kg.
Configuration within the line: vessel size 2162 (21×62″) with control valve Runxin F75Q1. On the same vessel size 2162 (21×62″) the line also offers Runxin F67Q1, Runxin F67C and Runxin F75A1. The same control valve Runxin F75Q1 is fitted on 1465, 1665, 1865, 3072 and others.
On vessel size 2162 the closest alternatives to Runxin F75Q1 are Runxin F67Q1 (valve capacity up to 4.5 m³/h instead of up to 10.0 m³/h, connection 1" instead of 2", weight 46.12 kg instead of 46.1 kg), Runxin F67C (weight 42.95 kg instead of 46.1 kg) and Runxin F75A1 (weight 46.6 kg instead of 46.1 kg).
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