PROVN OF CERTAIN EM EQPT LIKE PRESSURE FILTER, VOLTAGE STABILIZER, CHLORINATOR AND CONNECTED WORKS (MES) UNDER AGE (I) DARJEELING

M&L for installation testing and commissioning Desiccant type table top dehumidifier having dimension 740 mm (L) X 540 mm (D) X 445 mm (H). with capacity dehumidified air: 300 CMH. Power – 230 V / 1 PH /50 Hz. Dehumidifier equipped with Microprocessor based controlling system having LED Display indicating the status of input. Humidistat having with digital display. CNC fabricated unit with pre-coated MS sheet. The dehumidifier shall have Eco-Dry rotor and totally self-contained. The desiccant rotor, Process & reactivation air flow sectors insulated with Aluminum Foils. The desiccant rotor is made of fluted honeycomb type with stainless steel perimeter flange to incorporate robust internal structure required for industrial quality, durability, and easy serviceability and to extend media and seal life. There should be No wastage of active desiccant wheel media. The desiccant rotor is non-flammable and its media shall have high Performance metal silicates synthesized in situ. Differential air pressure switch to control reactivation air flow and indicating clogging of filters. High temperature thermostat cutout to economize the power consumption. Additional cooling thermostat as a safety measure to be provided. Electrical interlocking of fan motor, heaters, and rotor drive shall be provided for safety measure. PTFE bonded silicon bulb seal designed to have minimize air leakage. Dehumidifier should have an option to control Reactivation temperature, system parameters. Should be certified under ISO 9001:2015 and ISO14001:2015 certifications with updates. [Note- All connected items like cable, connection etc deemed to be included in unit rate considered. Make- Bry Air Asia/ DRI/ Nbarupayan

Supply and fixing coated coloured minimum 15 micron Aluminium anodized sliding window shutter with frame comprising of 2 trac sliding window made out of aluminium excluded section of bottom frame of weight not less than 1.175 kg/ RM, top and side frame of weight not less than 1.174 Kg/RM, the vertical style of shutter of weight not less than 0.423 kg / RM, top and bottom rail of shutter of weight not less than point 366 kg per running metre, into panel and shutter with an including 5 mm thick selected quality teen glass as approved with standard aluminium channel outside, with an including handles plate cladding clip special auto lock dry set rubber gasket etc complete all as specified and directed.

M&L for Earthing complete with galvanized steel earth plate electrode 600x600x6mm thick buried directly in ground earth pit not less than 2.25mtr deep below normal ground level with top edge of the plate not less than 1.5 mtr below ground level connected to galvanized iron strip 32 x 6 mm as earthing lead by mean of nut/bolt and washer of galvanized iron or steel as shown in electrical plate no 5 of Sl part I including necessary excavation and earth work GI pipe 20mm dia medium grade for watering and GI 40mm dia light grade pipe for protection of GI earth strip etc, PCC chamber with RCC cover in cement concrete 1:2:4 Type B1 (20mm graded aggregate), funnel, wire mesh, charcoal dust, salt etc, connected to Transformers/HT/LT poles/panel etc as directed including testing complete.

Supply installation testing and commissioning of filtration plant as per manufacturer's drawing design of min capacity 6,000 GPH confirming to IS 2062 vertical type, single or double deck provided with face piping, valves, filter, under bed plate system fitted with PVC strainer, pressure gauges, man hole, hand hole, air vent systems, air compressure of suitable capacity for back wash complete as per following specification. (a) Pressure Filter: Vertical singledeck and multi grade type. (i) Capacity : 6000 GPH (ii) Shell : 1800mm diaX1500mm height (iii)Thickness : Body-6mm, Disc-8mm, Bed plate-10mm (b) Material of construction : Mild Steel ISS-2262 (c) Frontal face pipeline: To be fabricated from 80mm ERW (MS) Pipes medium grade, Valve in frontal Pipeline 80mm butterfly valve flange less finish. (d) Media : sand & Gravells, Qty- 95 CFT appx. (e) Under bed System : Perforated Plate fitted with push fit type PVC strainer, Qty- 250 Nos (appx) made of LDPE. (f) Pressure Gauge and sampling Clock : 02 sets, for raw water and filter water. (g) Air Compressor : Air compressor 6 cfm, model DH 9 fitted with 1.0 HP, 440 Volts AC Motor, 1500 RPM including Air receiving tank, V belt, Belt guard, auto cut off switch, safely valve, starter and cabling etc complete all as specified and directed. Make: RMCO, Model DH-9 (I). (h) Centrifugal monoblock pumpsets suitable for site requirement/design pressure of capacity 7.5HP, 440Volt monoblock pump sets= 02 Sets incl NRV and starter panel and necessary cabling arrangements complete duly approved by AGE(I) complete all as specified and as drected. Pump suction & delivery as per filtration plant OEM Design, Pump Model KDS 852+ of Make Kirloskar/Lubi or equivqlent) (j) Design Pressure: confirming to IS 2825, Test pressure- 4.5Kg/Cm², Working pressure- 3.5Kg/Cm² (k) CI alum pot & soda pot with brass fittings- 14 ltrs. [Note : chlorine testing kit with coloured ample and operation & maintenance manual etc complete all as specified and directed. Make- RMCO, Thermax, Milton Ray, Daclibac, Potter & Watts [Note : Quoted rate shall incluide transportation, required RCC foundation & foundation bolts as per manufacturer's recommendations and supervision, installation duly matcning with existing system as per site requirement, commissioning, testing etc including minor accessories not mentioned but required for installation of system complete all as specified and as directed.

S&F Compact universal refill applicator of the following specifications: Multi-cavity 100 L water treatment station with proportional dose adjustment options. The system shall be of diaphragm-free, Agitator free, tube based self-priming fluid delivery drive unit to prevent air /vapour locks and dry-run problems. Fluid release up to 5 LPH independent of back pressure up to 7 Bars. Erosion-enabled system for controlled release of Chlorine with accurate output reproducibility. Integrated plug & play system operating on single phase 230 V 50 Hz power source. Including refills of plastic cylindrical sealed disposable sanitiser refill containing solid Chlorine for disinfection of drinking water, with arrangement for controlled release of disinfectant in water, suitable for operation through recommended dosing system. Replacement indication: visual & weight variation. Water contact orifice design: Sealed when dry, exposed upon immersion. Operation type: Non-contact, non-inhalatory. Cylinder dia: 2.5 inches ± 0.5 inches. Cylinder height: Minimum 10.0 inches ± 0.5 inches including complete incl necessary arrengement/ connetion to existing pipeline with upve pipe & valve 20mm as per manufacturer's instruction and all other arrangements complete all as specified and directed by the Engr-in-Charge. Make- Daclibac, Model Stequa Pack Pro V2 with Stequa 411 AE Refill of set 25) or equivalent of RMCO/Potter & Watts/ Brio Zing.

M&L for 80 mm bore “medium grade” galvanised steel (GI) pipe with all fittings/clamps and laid in trenches, wall and floors complete all as specified and as directed.

M&L for cutting of MS/GI pipe 150mm for addl alt and insertion of flanges duly welded at the position incl gasket etc and all necessary works complete all as specified and as directed.

S&F jointing and testing of cast iron Sluice Valve ISI mark (PN-1.6) of size 150 mm bore confirming to IS 14846-2000, flanged ends drilled having stainless steel spindle with cast iron wheel at top complete with nuts, bolts, washers and gaskets complete all as specified and as directed.

S&F jointing and testing of cast iron Sluice Valve ISI mark (PN-1.6) of size 80 mm bore confirming to IS 14846-2000, flanged ends drilled having stainless steel spindle with cast iron wheel at top complete with nuts, bolts, washers and gaskets complete all as specified and as directed.

Excavating over areas, exc 1.5 m deep and n exc 3.0 m deep and getting out in soft / loose soil, all as specified and as directed.