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Anti-Backflow Drain Valve – Vertical


Anti-Backflow Drain Valve – Vertical Technical Data Sheet: download-pdf

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)



Call us Today

To discuss your bespoke requirements on your next project and to receive expert advice, please contact the Aspen Stainless Team; you’ll be glad you did!

Call: +44 (0) 115 986 6321 or Email Us
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