Anti-Backflow Drain Valve – Vertical

The Vertical Anti Backflow Drain Valve is designed to sit inside the bottom outlet pipe of a drain outlet, and close off the pipe to prevent waste water returning into a gully, and more importantly into the room.

A neoprene rubber gasket is sandwiched inbetween the top plate of the valve and the lower plate creating a water tight seal. The lower plate is fully welded onto the outlet pipe prior to bolting on the valve.

The vertical valve has a ∅70mm hollow polypropylene ball, which is floats up and down according to the water flow. If a backflow of liquid arises, the ball get forced upwards closing off the pipe.

The stainless steel material of the valve is bead blasted for a smooth, corrosion resistant surface finish.

The valve is available in 2 outlet sizes to accommodate the outlet pipe sizes; ∅110mm and ∅160mm.

Vertical Anti Backflow Drain Valve Technical Specification

  • Top Plate: 2mm stainless steel.
  • Cage: 6mm stainless steel.
  • Ball: ∅70mm hollow polypropylene.
  • Grade 304 stainless steel (British Standard 304S31, Euronorm 1.4301)

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