Water Standpipes, Keys and Bars

Standpipes, keys and bars are used to obtain water from a pressurised mains supply via underground hydrants. The standard outlet for underground valves according to BS 750 is 2.5" BSRT male.

Standpipes have as standard a 2.5" BSRT female inlet, which is compatible with our underground hydrants. Standpipes are supplied either with single or double head outlets. Outlets are 2" female instantaneous with single twist release (BS 336). The double-head type is supplied with one blank plug as standard. Contractors' standpipes are supplied with a brass double check valve as standard.

Technical Specifications
Standpipe double head, overall length to centre circle of head (A)
839mm 
Standpipe single head, overall length to centre circle of head (B)
839mm 
Contractors' standpipe with double check valve, single and double top - overall length to centre of horizontal pipework
970mm 
Hydrant key length
1042mm 
Hydrant bar key length
1042mm 
Hydrant bar length
915mm 
Hydrant key length
762mm 

  • A - Standpipe double head alloy 2.5" BSRT female
  • B - Standpipe single head alloy 2.5" BSRT female
  • C - Contractors standpipe single tap c/w double check valve
  • D - Hydrant bar and key alloy
  • D - Hydrant bar and key steel
  • Standpipe base washer