bids are invited for cylindrical vertical water tank (1000 ltrs) - cylindrical vertical water tank (10000 ltrs).(a) provn of rotational moulded polyethylene water storage tanks with lid, cylindrical vertical type, double layer 10000 ltr capacity, ‘isi’ marked confirmingto is1 2701:1996 (reaffirmed-2006) edition 2.2, and as per general technical requirements. make: sintex / vectus / supreme. (colour : white/green) (b) the tank shall be durable for a minimum pd of 1 yr under normal service temperature conditions from ± 50 degree c.the firm shall furnish guarantee to this effect.(c) the water tank meant for outdoor use shall be manufactured from carbon black compound polyethylene. the carbon black content shall be 2.0 to 3.0%.(d) the following accessories would also be required for the fitting of water tank :-(i)gi nipple 150 mm long, 20 mm dia - 02 nos.(ii) tank nipple 20 mm dia - 02 nos.(iii) gi socket 20 mm dia - 02 nos.(iv) bib cock cp brass alloy 20 mm dia - 01 no.(v) float valve brass 20 mm dia - 01 no(delivery at battal) , gi pipe 40mm dia medium grade 6 mtr longs per is specifications 1239 (part-i) 1990 isi marked. make jindal / tata / surya /oswal - gi pipe 40mm dia medium grade 6 mtr longs per is specifications 1239 (part-i) 1990 isi marked. make jindal / tata / surya /oswal (delivery at battal) , gi socket 40 mm dia isi marked - gi socket 40 mm dia isi marked(delivery at battal) , gi tee 40 mm x 40mm x 20mm isi marked. - gi tee 40 mm x 40mm x 20mm isi marked ( delivery at battal). , gi union 40 mm dia isi marked. - gi union 40 mm dia isi marked.(delivery at battal) , brass gate valve 40 mm isi marked, is-779.make - jindal / tata / surya - brass gate valve 40 mm isi marked, is-779.make - jindal / tata / surya (delivery at battal) , gi tank nipple 40mm size full threaded with check nut, rubber rings etc for connecting gi pipe with tank of size 50mm.make - jindal / tata / surya - gi tank nipple 40mm size full threaded with check nut, rubber rings etc for connec