M and R to Water Supply Scheme Sinner.. Repairs and Overhauling of ESE type Lightning Arrestor and allied works at Sinner WSS. Rs. 3986080.00

M&R to Water Supply Scheme Sinner… Repairs & Overhauling of ESE type Lightning Arrestor & allied works at Sinner WSS. ( Estimated Cost Rs. 3986080.00)

Repairs & servicing of Advance Early Streamer Emission (ESE) Protector Lightning Arrestor with earthing system and replacement of allied accessories of Duval Messien Lightning Arrestor etc. complete.

Supplying erecting testing and commissioning DI D/F non-rising spindle soft seated glandless Gate Valves( Sluice Valve) of size 250mm with body and bonnet of Ductile cast iron of grade GGG-40, wedge with fully encapsulated EPDM rubber (approved for drinking water ) and seals of NBR. The valves should be with replaceable stem nut and replaceable sliding shoes. Valve stems shall be of single piece thread rolled type. Valve shall have 3 “O” rings of NBR for stem sealing. Gate valve shall be compatible for buried application without valve chamber. Face-to- face dimensions as per BS 5163-89/IS 14846 – PD/EN 558 F4 and flange connections as per EN1092-2/IS 1538, Maximum valve operating torque should be at least 40% less than the torque as stated in the standard EN 1074. Electrostatic epoxy power / liquid coating (EP-P) inside and outside color blue RSL 5005 with minimum coating thickness of 250 microns. The EPDM rubber & Epoxy coating should be potable water certified. Material of construction :- Body, Bonnet :- Ductile Iron GGG40 (EN-JS-1030) Wedge, (Fully rubber encapsulated):- Ductile Iron GGG 40(EN-JS-1030) encapsulated with EPDM rubber- Portable water certified. Spindle / Stem: - SS: AISI 420 Stem Nut:- Brass Bonnet Gasket: - EPDM rubber potable water certified Internal fasteners: - Stainless Steel SS304 Stem Sealing :- Toroidal NBR sealing rings (Min 03 ‘O’ Rings) Coating: - Inside & Outside epoxy powder coated; DFT minimum 250 micron, shade RAL, 5005 (Signal Blue) potable water certified. excluding GST) PN 1.6 rating

Providing and fixing at site of High-performance Ductile Iron Double Flanged Resilient Seated 300 mm Dia Butterfly Valve. Valve shall be with Body and disc made of Ductile Cast Iron GGG-40 (EN GJS 400-15), soft seal on the disc and body seat of Stainless Steel (AISI 309 LSI) micro finished weld overlay. The weld shall be a robotic process involving axial rotation of the valve relative to the arc (or vice versa) to ensure a continuous weld deposit providing full, uniform, and uninterrupted coverage of the machined body surface, with no visible discontinuities. Bolted seat ring or manual weld deposit process on valve body shall not be acceptable. Valve shaft shall be made of Stainless Steel 1.4021(AISI 420) with all internal & external hardware Shall be with min AISI 304 / Stainless steel A2 grade or superior. Valve seal and all “O” rings / rubber components shall be made of EPDM approved by WRAS certification W270 suitable for food grade quality. Valve shall be with Fusion bonded epoxy coating with minimum thickness of 300 microns applied on both body & disc inside and outside with blued colour RAL 5005. Valve shall be design according to EN593/BS 5163, the face-to-face length shall be Valve shall be design according to EN593/BS 5163, the face-to-face length shall be according to EN 558-1, basic series 13 & 14/BS 5155 & DIN 3202 (Long Body)/ BIS13095 (Long Body) and drilling according to EN 1092-2.

Rebate for Old C. I. Material

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