tender for procurement of purchase of six(06) water purifier-cum-coolers for government general degree college, narayangarh, paschim medinipur inprinciple approval no. 156-hed-16011(11)/56/2022-app sec dated 20.07.2026 , description of items , name of the item/equipment/etc. 100 litre/hr water flow ro+uv+uf+tds control water purifier machine brand: any authorised and reputed brand specifications: a. material - stainless steel b. mounting - floor standing c. purification production rate. 100 litres/ hour. d. maximum duty cycle should be - 500 litres per day e. filter cartridge-sediment, activated carbon, uf, post carbon f. uv lamp wattage -11w g. membrane type - thin film composite ro h. u.f. membrane - 0.1 to 0.01 micron i. inlet water pressure/temp- (min)-0.3 kg/ cm²/ 10°c max- 4 kg/ cm²/ 40°c j. minimum/max operating ph. - 6.5 to 8.0 k. pump voltage - 24v dc l. power consumption - 240 w m. input power supply - single phase- 100-250v ac n. product dimension -505mm(l)×360mm(w) × 746 mm (h) o. product weight should be - 33 kg & up , name of the item/equipment/etc. for 40 litres /hour water flow ro+uf+ tds control water purifier machine brand: any authorised and reputed brand specifications: a. chiller with high capacity chilled water storage tank b. purification capacity - 40 litres/hour. c. filter cartridges- sediment carbon block d. material - abs front cover and stainless steel body e. technology - r.o. f. product dimension - 425mm (l) x 400 mm(w) x 1345 mm(h) g. product weight should be - 38 kg & up. h. storage capacity: 20 litre purified water tank i. input power-100-230 v ac , name of the item/equipment/etc. hot & cold water dispenser with inbuilt ro purifier brand: any authorised and reputed brand specifications: a. purification technology: ro + uv + uf + tds control + in-tank uv b. purification production rate: up to 40 liters/ per hour c. storage capacity: 20-22 liters d. water dispensing options: hot, cold (chilled), and ambient/normal e. cooling temperature range: 7°c to 17°c f. body material: abs food-grade plastic / stainless steel components g. installation type: floor standing h. power supply: 230v ac, 50/60 hz i. item weight: 40 kg & up , name of the item/equipment/etc. pre-purified ro water machine into hydrogen-rich and alkaline water using electrolysis technology brand: any authorised and reputed brand specifications: a. water source: requires pre-purified ro water poured into the tank b. tank capacity: 2-litre transparent detachable storage tank c. ph range: increases water ph levels from 8 to 9.5 d. oxidation reduction potential (orp): negative orp value (up to -850) acting as a natural antioxidant e. operation controls: digital touch panel with adjustable h2 enrichment programs (default setting p3, with p1 and p2 options) f. technology: electrolysis ionization technology (chemical-free) g. dimensions: 35 cm (l) x 15 cm (w) x 35 cm (h)