provision of fire hydrant at oil administrative office building of chennai port trust provision of fire hydrant at oil administrative office building of chennai port trust , supply, installation, testing and commissioning of ms erw pipes confirming to is:1239 / 3589 heavy grade ( c-grade ) with necessary flanges, gaskets, nuts and bolts etc., including painting and ms clamp as required. 25 mm , 50 mm , 60 mm , 100 mm , 150 mm , 200 mm , supply, installation, testing and commissioning of cast iron butterfly valve conforming to is: 13095 with necessary suitable flanges, bolts and nuts. 100 mm dia , 150 mm dia , supply, installation, testing and commissioning of air release valve. , supply, installation, testing and commissioning of stainless steel double headed hydrant valve confirming to is:5290 type “a” with 63mm dia instantaneous oblique outlet and female coupling confirming tois:903 with blank cap. , supply and installation of hose cabinet wall mounted type double door. , supply, installation, testing and commissioning of four way fire brigade intel ( fbi ) with 4 nos. of 63 mm dia. threaded gun metal instantaneous inlet made couplings with flange, bolt and nuts. , fire fighting delivery hoses completely composite construction circularly woven three layered synthetic jacketed fully encapsulated elastomer with outer design to facilitate good grip, complete flexible and light weight.no maintenance with burst pressure -42kg. / cm2 proof pressure -22 kg. / cm2 as per is:636 / 1988 size 63mm ( 2 ½” ) dia each 15 mtrs. length and connected with stainless steel non-corrosion instantaneous made and female coupling. , supply, installation, testing and commissioning of 1 no. electric driven main fire pump adequate capacity ofs suitable for automanual operation complete in all respect as required and consisting of the following :- horizontal type multistage, centrifugal, split casing pump of cast iron body and bronze impeller with ss shaft, to ensure minimum pressure of 3.5 kg / sq.cm at the highest and farthest outlet at a flow 37.8 l / s & 94.0 m, head confirming to is-1520 with mechanical seals, safety relief valve, pressure gauge on delivery side complete as required as per schedule a , and 1 no. squirrel cage induction motor adequate capacity of suitable for operation on 415 v, 3 phase 50 hz, ac supply for the above pump rating with speed of 1500 rpm, ie-3, tefc type conforming to is-325 with ip:55 protection for enclosure, horizontal foot mounted with class f insulation, flexible coupling & coupling guard with the pump complete as required. , wrap coating of pipes below ground level with bitumen liquid for 150 mm dia pipe. , breaking of wall wherever necessary for fixing of 150mm dia pipe and reclose the same as like as original. ( 0.2 x 0.2 x 0.25 mtr. ) x 10 nos. ( only approximate dimentions ) . , construction of concrete ramp for safety of 150mm dia pipe. at road crossing ( 14 mtrs. length x 0.4 mtr. height x 1 mtr. width ) ( approximate dimension ) – 1 no. , construction of brick support for supporting of 150 mm dia pipe at an interval of 3 mtr. at ground level ( nos.45 approximately ) .