Water Supply, Irrigation & Sanitation Tender Results

Supplying at store or site of work including railway freight carting loading unloading stacking etc. Cast steel double flanged manually operated sluice valve/ gate valve haing body bonnet in cast steel ASTM A 216 Gr WCB wedge and steel ring in cast steel ASTM A-216 Gr. WCB with 13% Cr cteel inside screw rising stem in stainless AISI 410 spindle bonnet brush and gland brush in stainless steel ASTM A 479 Gr 410 bonnet stud in aiioy steel ASTM A 193 Gr B 7 and gasket of metallic spiral wound inAISI 304 with graphite filled in. The construction and testing of valve will be as per applicable requirements of ΑΡΙ 600 & 589 respectively. Flanges drilled to IS 1568 table 4&6 or ANSI 16.50 as per requirements. Class 150 (Class A);Dia in mm;450

Material and labour for taking out MBBR media from tank cleaned with suitable chemical for refilling after cleaning of MBBR tanks , M&L for cleaning of MBBR REACTOR TANK of stp by cleaning entire internal surface by removing dirt, sludge etc with wire brush by applying bleaching power and fresh water. The cleaning of tank includes following . (a). Taking out MS/HDPE pipe with stainer , descaling the pipe and taking out stainer ,cleaning of stainer / repair by suitable welding or replacement of stainless steel bars / sheet as required at site. (b). Descaling of air grid and cleaning of holes for air piping. (c). Descaling of interconnecting MS piping .(d). Applying all piping inside MBBR tanks and inner surface of Tanks with two coats of epoxy paint over coat of red oxide primer .

Underground structures waterproofing with HDPE membrane - Providing and laying water proofing treatment to the Rafts, below grade slab, Lift pits, water retaining structures with fully bonded 1.5 mm thick HDPE waterproofing pressure sensitive adhesive membrane over PCC before laying raft concrete having higher puncture resistance of 1000N as per ASTM E 154, confirming to BS 8102 & IS 16471:2017, requirements of UG waterproofing structures. Laying adjacent sheets by keeping overlap of 75mm, end overlaps to be treated using double sided tape. The membrane shall have Tensile strength >25 Mpa as per ASTM D 412, Elongation > 500% as per ASTM D 412, Hydrostatic head resistance >70m head of water as per ASTM D 5385, Low Temperature Flexibility: -25 deg C, Peel Adhesion to Concrete >880 N/m as per ASTM D 903 Modified, UV Exposure > 45 Days. The finished cost including surface preparation completely as per specification - base