(9) Supply and install complete 100 dial pressure gauges (0 to 2500kPa) with 0.5 inch BSP thread(or similar approved) stub to be welded on pipework in the factory, 0.5 inch nipple pipe and 0.5 inch cobra ball valve or similar approved (PN25)
(10) Supply and install complete 0.5 inch BSP thread (or similar approved) stub to be welded on pipework in the factory, 0.5 inch nipple pipe and 0.5 inch cobra ball valve or similar approved (PN25)
"(11) Supply and install complete meter rigs (isolation valves, pressure reducing valves, meters, unions, tail pieces) (refer to drawing W01.JNB.000760-G006 for pipework details) on pipeline at identified existing consumer offtakes
(1500 dia. Precast chamber measured elsewhere):"