Transcription of Abbreviations - wsd.gov.hk
1 Abbreviations The following standard Abbreviations shall be used in the WSD Standard Drawings. Material Cast iron CONC. Concrete Ductile iron Galvanized iron Galvanized mild steel Glass-fibre reinforced plastic GALV. Galvanized Hard wood Mild steel PE 80 Polyethylene pipe, PN80. PE 100 Polyethylene pipe, PN100. PVC Polyvinyl chloride Reinforced concrete Rectangular hollow section Rolled steel joist Stainless steel UPVC Unplasticised polyvinyl chloride Mainlaying Blank flange Butterfly valve Bottom vertical bend CSK Countersunk Double air valve District metering meter DN or dn Nominal diameter NS or ns Nominal size of PE pipe Fire hydrant Flow measurement chamber WSD Standard Drawings Page 1 of 5 Updated :6/1/2016.
2 - Abbreviations Abbreviations Fresh water Gate valve Horizontal bend Internal diameter Inspection tee Leakage collection manhole Leak noise correlation Motorized butterfly valve Manhole tee Non-return valve Outside diameter Pitch circle diameter Pedestal hydrant Pump pit Raw water Reflux valve Single air valve Stop cock Swan neck Self tapping saddle Sluice valve Salt water Top vertical bend Waste detection meter Washout Building Existing ground level Finished basement level Finished floor level Finished ground level WSD Standard Drawings Page 2 of 5 Updated :6/1/2016.
3 - Abbreviations Abbreviations Floor level Finished roof level Ground floor level Ground level Structural basement level Structural floor level Structural roof level Service Reservoir Cap. Capacity Invert level Top water level Wall top level Drainage Catchpit Covered U-channel Fresh air inlet Floor drain Gully trap Junction pit Manhole Roof drain Rodding pit Rainwater pipe Stepped channel Soil pipe Sand trap Storm water drain U-channel Vent pipe WSD Standard Drawings Page 3 of 5 Updated :6/1/2016. - Abbreviations Abbreviations Water closet Waste pipe Installations B/T Balance tank BPT Break pressure tank H/T Header tank P/H Pump house P/S Pumping station S/Q Staff quarters S/R Service reservoir T/W Treatment works Miscellaneous BS British standard British standard pipe British standard whitworth C/C Centre to centre CLP CLP Power Hong Kong Limited COEF.
4 Coefficient CSWP Computer-Aided-Drafting standard for works projects DIA. or Diameter Draw pit DP. Deep DRG. Drawing Earthing pit EQ. Equal EXT. External FIG. Figure Half-round WSD Standard Drawings Page 4 of 5 Updated :6/1/2016. - Abbreviations Abbreviations High voltage HEC Hong Kong Electric Company Limited HKT PCCW-HKT Telephone Limited HOR. Horizontal INT. Internal Loose jumper type stopcock Low voltage MAX. Maximum MCT Multi-cable transit MIN. Minimum NO. or no. Number Not to scale Reducing bush RAD. or R Radius REF. Reference Standard wire gauge SK Sketch SQ. Square STG.
5 Staggered THK. Thick Threads per inch VER. Vertical Waste detection WSD Standard Drawings Page 5 of 5 Updated :6/1/2016. - Abbreviations
