WBPWD/EE-II/KNHED/NIQ-97/21-22

Amount

CHILLED WATER PIPING (MS HVY CLASS) Supply, design, fabrication and erection of MS heavy class ERW pipe for CHILLED WATER CIRCUIT in accordance to IS-1239 standards including providing necessary qunatities of flanges, fittings, bends, elbows, gasket, nuts, bolts etc. as follows: (Make - Jindal / TATA) 200 NB (7 mm thick)

WATER LINE VALVES, STRAINERS & ACCESSORIES SITC of the following Water line Valves, Stariners and accessories as per following categories, sizes and qunatities complete with providing flanges, nut-bolts, gasket and welding arrangements: (Item 2 to 10) BUTTERFLY VALVE : SITC of the following Water line Butterfly-Valve as per following categories, sizes and qunatities complete with providing flanges, nut-bolts, gasket and welding arrangements:Butterfly valve shall be of PN 16 rating as per standard. Valves of sizes 32 mm and above shall be made out of Cast Iron body, SG iron disc with Nylon coated, SS-431 Stem, EPDM integrally moulded liner with hand lever/Gear Box. Valves up to 150 mm NB shall be with detachable hand lever operation whereas valves above 150 mm NB shall have warm gear operation. (Make - Advance / C & R / Audco / Honeywell) 125 MM

BALANCING VALVE : SITC of the following Water line Balancing - Valve as per following categories, sizes and qunatities complete with providing flanges, nut-bolts, gasket and welding arrangements: The valves shall be designed for PN 16 rating as per standard. The valves of sizes 32 mm to 65mm dia. shall be of gun metal / cast iron construction with screwed ends angular design hand wheel with locking facility. Whereas valves of sizes 80mm and above shall be of cast iron construction with internal parts of SS 410 and EPDM / nitrile seat with flanged ends. The test cocks should be long enough to protrude out of valve insulation. (Make- Advance / Flowcon / Honeywell) 125 MM

NON-RETURN VALVE : SITC of the following Water line Non Return - Valve as per following categories, sizes and qunatities complete with providing flanges, nut-bolts, gasket and welding arrangements: The dual plate check valves shall be used for horizontal / vertical run of pipes & shall conform to PN 16 rating as per standard. The valves shall have cast iron body, and SS 410 plates, SS 410 Shaft & Nitrile Seat. (Make - Advance / C & R / Audco / Honeywell) 125 MM

Y-STRAINER MS : SITC of the following Water line Y-Strainer as per following categories, sizes and qunatities complete with providing flanges, nut-bolts, gasket and welding arrangements: Y-strainer shall be fabricated out of Mild Steel, flanges as per BS 10 shall be provided at inlet and outlet of the connection. The body shall be pressure tested at 10 Kg/cm² and shall be hot dip galvanized. Permanent magnet shall be provided in the body of the strainer to arrest MS particles. Filter element shall be of nonmagnetic 20 gauge SS sheet with 3 mm perforation. (Make - Anergy / Emerald / Sant / D.S Engineering / Rapid Cool / Honeywell) 125 MM

3-WAY MIXING VALVE WITH ACTUATOR, LINKAGE & THERMOSTAT : The three way modulating valves shall be provided in chilled water line to the cooling coil of Air- handlers which is actuated by a proportionate thermostat. These valves shall consist of bronze metal valve body with stainless steel trim. Modulating motor shall be suitable for operation with a signal of 0-24 volt DC. The pressure drop across valve for air-handler unit shall not exceed 5.0 PSI. The valve linkages shall be of the same make as of valves & modulating motor. (Make- Honeywell / Belimo / Danfoss / Siemens / Johnson) 65 MM

PRESSURE GAUGE : SITC of the following Water line PRESSURE GAUGE as per following categories, sizes and qunatities complete with providing flanges, nut-bolts, gasket and welding arrangements: Bourden type pressure gauges of 100mm dia of suitable range shall be provided.The water pressure gauge shall be made of stainless steel grade SS304. The dial plate shall be powder coated with white colour base & the calibration shall be done in black colour. All the pressure gauges shall be complete with ball valves & SS Siphon and confirming to IS:3624. (Make - H Guru / Feibig)

V Type THERMOMETER : SITC of the following Water line INDUSTRIAL TYPE THERMOMETER, as per following categories, sizes and qunatities complete with providing all fixing accessories: The V form thermometer shall be made of aluminium die casting with golden colour anodizing. The thermometer shall have a V groove in the body to protect the refill from the damages during the installation. The refill shall be filled with blue colour mercury. The thermometer shall be complete with brass well & the calibration of temperature shall be in Celsius & Fahrenheit. (Make - H Guru / Emereld / Feibig)

SITC WATER FLOW SWITCH (Make - Honeywell)

SITC AUTO AIR VENT (Make - Honeywell / Anergy)

THERMAL INSULATION OF CHILLED WATER PIPE : Supply and fixing of 50 MM THICK "TF" qulaity (16 Kg/CuM density) Expanded Polystrene pipe section, Vapour barrier and covered with 12 mm thick sand, cement and plaster on GI chicken wire mesh. (Make - Thermowell / Calcutta Packeging / Beardsell) 200 NB

DRAIN PIPE FOR CHILLED WATER SYSTEM : SITC of Drain piping with GI B Class pipes with fittings duly insulated with 25 MM THICK "TF" qulaity (16 Kg/CuM density) EPS section, Vapour barrier and covered with sand, cement and plaster with GI chicken wire mesh along with necessary quantities of supports, flanges, bends, elbows, fittings, nut-bolts, gaskets etc. (MAKE - TATA / JINDAL) 50 MM

DUCT WORK (GI DUCT) : SITC of Class - VIII grade (120 GSM) supply / return air duct along with pre fabricated plenum for supply and return air with necessary supports, flanges etc. as required and as per IS 655 and IS-277 standards of following gauges. (Mk. SAIL / TATA) 24 SWG

DUCT WORK (AL DUCT) : Aluminium supply/return air duct along with pre fabricated plenum for supply and return air with necessary supports, flanges etc. as required and as per IS 655 and IS-277 standards of following gauges. (Make - Hindalco / Balco / Nalco / Jindal) 22 SWG

Supply & Fixing of Aluminium powder coated supply air diffusers / grilles with volume control damper (Make - Systemair / Air Enterprise / Premire / Caryaire / Airmaster / Ravister / Dynacraft)

Supply & Fixing of Aluminium powder coated return air diffusers/grilles without volume control damper (Make - Systemair / Air Enterprise / Premire / Caryaire / Airmaster / Ravister / Dynacraft)

Supplying, Fixing,testing and commissioning of fire dampers in supply air duct/main branch and return air path as and where required of required sizes i/c control wiring,the damper shall be motorized and spring return so as to close the damper in the event of power failure automatically and open the same in case of power being restored. The spring return action shall be inbuilt mechanism and not externally mounted. The damper shall also be closed in the event of fire signal complete as required and as per specifications. a. Fire Damper ( Make - Carvyaire / Ravister / Dynacraft)

b. Actuator (Make- Honeywell / Belimo / Siemens / Johnson)

Supply and fixing of Opposed blade GI Duct Damper of 18 G GI sheet and frame. (Make - Ravister / Premire / Dynacraft)

Supplying, fixing, testing & commissioning of powder coated extruded aluminium section fresh air grill in AHU room with aluminium volume control dampers, bird screen etc complete as required. (Make - Systemair / Air Enterprise / Premire / Carvyaire / Airmaster / Ravister / Dynacraft)

DUCT THERMAL NITRILE RUBBER INSULATION : Supplying and fixing of 19 mm thick duly laminated aluminum foil of mat finish closed cell Nitrile rubber (Class “O”) insulation on existing duct after applying suitable adhesive for Nitrile rubber. The joints shall be sealed with 50 mm wide and 3 mm thick self adhesive nitrile rubber tape insulation. (Make - Armacell / K Flex / Video-Flex)

DUCT ACOUSTIC INSULATION : Supplying & fixing of acoustic insulation inside ducting with 10mm thick open cell nitrile rubber(class O) of density 140Kg/cu.m-160 Kg/Cum insulation with bolts nuts GI washers etc as required. Make - Armacell / K Flex / Video-Flex

DUCT THERMAL INSULATION FOR DUCT FOR NON-AC ZONE : Supplying & fixing of Thermal insulation of the duct running in non AC Zone with 75 mm thick expanded polysterene finishised with with 12 mm thick sand cement plaster. (Make - Beardsell / Astha / Thermowell)

(Rate should be quotated including all taxes and duties)

SAGARDIGHI CONSTRUCTION AND CO

SAVIO ENTERPRISE

P. M. COOLING AND ENGINEERING CO