2 1/2" Double Valve alloy standpipe complete. To comply with BS336 or equivalent.
All components are cast in materials acceptable to the water industry and cast in grades LM6/LM4. Tube material is to BS1474 6082 T6 or HE30 or equivalent. The outside diameter shall be 2 1/2" with a wall thickness of 1/8".
Standpipe base to be standard London Round Thread connections. Base washers to be manufactured from a WRC approved EPDM or Nitrile material. Outlet to be standard 2 1/2" instantaneous coupling with swivel head.
