supply of valves , 100mm steel globe valve face to face length :14 inch end connection flanged class-30 for oil application (manually operated) , 80mm brass gate valve is:778, class-1 end connection: threaded face to face length: 125mm for water application (manually operated) , 40 mm brass gate valve is:778, class-1 end connection: flanged face to face length:120mm for water/oil application (manually operated) , 50 mm brass gate valve is:778, class-1 end connection: flanged face to face length:135mm for water application (manually operated) , 3 inch ci butterfly valve face to face length:50mm end connection: water body end class-125 for water application (manually operated) , 250mm ci non return valve (nrv) is-5312 part-1 pn-1.6 face to face length:600mm end connection: flanged , 200mm ci non return valve (nrv) is-5312 part-1 pn-1.6 face to face length:500mm end connection : flanged , 150mm ci non return valve (nrv) is-5312 part-1 pn-1.6 face to face length:400mm end connection: flanged , 80mm ci non return valve (nrv) is:5312 part-1 pn-1.6 face to face length: 241mm end connection: flanged