ABSTRACT

Fittings and valves 1.0m3 hydraulic backacter 42.83 disc saw – 30% of time 0.42 2.80m3/min compressor, 2 tool – 30% of time 2.98 2 t dumper – 30% of time 2.06 compressor tools, extra 50 ft/15m hose – 30% of time 0.09 small pump – 30% of time 0.75 sundry tools – 30% of time 1.01 Total Rate/Hour 50.15

VALVES AND PENSTOCKS

Valves Non-return valves; cast iron; single door; tidal flap

250mm 0.40 26.87 10.03 368.00 nr 404.90 350mm 0.40 28.18 10.03 702.00 nr 740.21 450mm 0.70 49.31 10.03 932.00 nr 991.34 600mm 0.70 49.31 15.06 1265.00 nr 1329.37 800mm 0.75 52.83 17.55 2248.89 nr 2319.27

Penstocks; cast iron; wall mounted; hand operated 250mm 1.66 116.93 17.55 518.89 nr 653.37 350mm 2.30 162.01 20.06 732.46 nr 914.53 450mm 2.90 204.28 22.58 904.89 nr 1131.75 600× 600mm 5.40 380.38 40.12 1461.75 nr 1882.25 1000×1000mm 9.00 633.97 75.24 2616.61 nr 3325.82