procurement of different types of maintenance materials for fire water spray system for sgtpp procurement of different types of maintenance materials for fire water spray system for sgtpp. , procurement of different types of maintenance materials for fire water spray system. , pipe gi 50 nb of spray water line system thickness-4.5mm,is 1239(part-i),heavy duty , pipe,gi,25 nb,min length 6 mtr , pipe,gi,20nb,3/4inch , pipe,gi,15nb,0.5inch , gi bend,32mm/32mm,both end thrd,t-4.5mm for ldo/hfo tank fire water spray system gi bend 32mm / 32 mm (both end threaded)thick-4.5mm , gi elbow 25 nb x 25nb for fuel oil tank spray pipe line. , elbow,gi,90 $for air line sgtpp , g.i elbow 1/2 , tee,gi tee 40?40?25mm nb # , equal tee,gi,25nb # , equal tee,gi,20nb # , equal tee,gi,15nb # , tee, gi tee 25×25×25mm nb , t-socket 25mm*25mm*15mm- both end thread for fire water spray system , gland packing,style 1800,14 mm for pump sgtpp make spitman , gland packing,style 1800,12.5 mm for pump sgtpp make spitman , ss304 bal vv for ash water pp,size:1in s.s 304 ball valve manual operated for ash water pp,size: 1 inch , gi reducer 25nb/15nb both side thread # , g.i. reducing elbow size 15x25 mm dia # , cross-socket 32mm*32mm*25mm*25mm;thread for fire water spray system ( cross )-socket 32mm*32mm*25mm*25mm(both end threaded) , gi socket,15 nb * 15 nb,both end thread for fuel oil tank spray pipe line. , gi bolt with nut 12mm& length 65mm for fire water spray system , gi bolt with nut 16mm& length 65mm for fire water spray system , quartzoid bulb dectector- 79 deg c for fire fighting system hd fire 1/2 npt, ss-316 , gi cap assemble 32 nb (inside threaded) for fuel oil tank spray pipe line. , gi cap assemble 25 nb (inside threaded) for fuel oil tank spray pipe line. , gi socket,25 nb x 25 nb,both end thread for fuel oil tank spray pipe line. , union,gi,15nb both side thread # , union,gi,65 mm,2 and 1/2 inch for pump sgtpp threaded ends bsp