Sizes 2.1/2", 3" & 4" are a stock item; order by 5pm for same day despatch.
The Resideo Braukmann BS300 backflow preventer is suitable for protection against back pressure, backflow and back siphonage for fluids up to category 4.
Flowstar, our parent company, has an interesting article relating to Backflow Prevention in the Technical section of their website.
Sizes: 2.1/2", 3" & 4" on stock (6" & 8" to order)
Connections: Flanged PN10
Materials: Ductile iron housing, powder coated with polyamide
Medium: Drinking Water
Inlet Water Pressure: 1.5 to 10 Barg
Maximum Water Temperature: 60 degC
Notes: WRAS approved
