Rain Bird’s Automatic Backwashing Screen Filter provides worry free high-flow rate 250 micron (standard) filtered water quality. Powered by source line water pressure, the filter’s patented backwashing valve system produces a reverse flow to flush the system of entrapped contaminants.
During the brief backwashing cycle, a portion of the clean water produced by the system is diverted to the filter unit undergoing backwashing. This reverse flow of filtered water frees contaminants from the wedge-wire filter screens. Each filter canister is sequentially backwashed until the entire system is cleaned, allowing irrigation continue through the backwash cycle.
Models are available as a filter unit only, or as a filter assembly including bypass plumbing and valves for fast and easy installation on site.
This filtration system is automatically monitored either on elapsed time since the last backwashing or pressure differential. This dual monitoring offers the user the flexibility to assure that filter operation is maintained with high efficiency, low pressure drop and consistent high quality water production. Rain Bird automatic controls are available for A/C power, D/C power and solar power applications.
The Automatic Backwashing Screen Filter is built for years of durable, trouble-free service. The filter canisters are constructed of carbon steel, which is fusion epoxy lined as a standard feature. The carbon steel manifolds and the cast iron backwash valve are also fusion epoxy lined. The stainless steel filter screens are of a low maintenance design and require only periodic maintenance to maintain the filter element. In addition to the automatic backwashing cycle, the filter canisters and screens have no internal moving parts to wear out, break down or replace. And, the high strength stainless steel canisters are constructed with a 400 PSI burst strength. A patented backwash valve features stainless steel valve trim and a field replaceable polyurethane valve sealing element. The backwash valves also feature external lubrication fittings for easy field service.
Available as filter only (no bypass plumbing) or as a complete assembly with bypass plumbing and valves for easy installation
Heavy-duty, durable, wedge-wire screen filtration element
Flow rates from 250 to 4,000 GPM
Standard maximum operating pressure: 150 PSI (higher pressures optionally available)
Standard, stainless steel wedgewire screens are supplied as 60 mesh (250 micron).
Optional screen sizes available for 40, 80, 100 or 150 mesh
Vertical configuration designed for limited space applications
BSFx-x: Automatic Backwash Screen Filter
BSFx-x-B: Automatic Backwash Screen Filter with Bypass Manifold