nit no. 18(21 22)/cwa(wns)ii hp/item no. 01 sitc of fume hood x 1, body shower and eye shower for quality control laboratory, haiderpur (iso 9001 2015 certified). , ducted high performance fume hood specifications a fume hood sometimes called a fume cupboard or fume closet is a type of ventilation device that is designed to limit exposure to hazardous or toxic fumes in lab environment. it bypasses all toxic fumes from lab by a duct. internal material of fume hood is made by 6 mm phenolic resin laminate which has a very good chemical resistance properties and outer body also made by gi sheet with epoxy powder coating. the size of fume hood varies as per the requirement of user and it starts from 1200mm, 1500mm, 1800mm and so on. internal size also varies in same manner. moc also can be changed as per the criticality of chemicals that a user is using in their labs. in conclusion we can shay that fume hood is safety equipment which is necessary for a lab to make a healthy environment. overall dimensions with base cabinet:1800 mm w x 1000 mm d x 2400 mm h fume hood dimensions: 1800 mm w x 1000 mm d x 1555 mm h base cabinet dimensions: 860 mm w x 600 mm d x 655 mm h with castors – 2nos inside fume hood working volume: 1740 mm w x 750 mm d x 1180 mm h bed size:1740 mm w x 750 mm d quantity: 1. model high performance fume hood 2. design basis american design standard: ashrae110 2016 all tests including “tracer gas containment test” passed. european design standard: en 14175 2003 ‘inner plane containment test’ passed. 3. design structure aerodynamic, floor mounted 4. airflow type low constant volume (for a.c. environment) 5. colour combination (may select as per our standard colour list) 6. powder coating complete metallic parts are processed with multi tank pre treatment and finished with highly corrosion resistant kansai nerolac/equiv epoxy powder coating with 70 80 microns thickness. our automatic coating plant and fully conveyorized ovan ensures that coating surface get appropriate temperature to bond with the surface. the paint surface was tested for quality and longevity out of which 1000 hours salt spray test is important factor. 7. material of construction of superstructure galvanized iron (gi) as per is 277: 2003 standard of • 1.0 mm thickness for all sheet metal paneling • 1.2 mm for back pillars • 1.2 mm for front corner post 8. front top panel easily openable hinged gas spring based top panel for easy access to flow control valve and electrical lighting fixtures for maintenance. 9. corner post triangular profiled corner post is placed on lhs and rhs of the fume hood and it houses the utility line fittings and electrical receptacles. 10. inside liner chemical & heat resistant, fire retardant, smooth finish, easily cleanable panels made out of durable prl integral work walls (6 mm thick). astm flame spread index < 25. 11. active kinetics exhaust system interstitial 7 point active kinetics exhaust system (for light, normal & heavy fumes) with baffle to ensure rapid exhaust of fumes. 12. airfoil aerodynamic design, horizontal fixed airfoil mounted on the worktop made of ss 304 (1.2mm) teflon coated. 13. worktop chemical resistant splash & spillage proof dished ‘jet black granite’ worktop (18 +1 mm thick). skirting of 15 mm from all sides for no chemical spillage. 14. sink, water tap with drain arrangement worktop will have sink sealed with silicon sealant for drainage with water tap on left back side of worktop. sink will have a trap for waste collection. oval shaped 100 mm x 200 mm sink 15. sash (shutter) vertical/combinational rising sash counter balanced with pulley and counter weight system. toughened float glass sash (5 mm thick). smooth and light sash operation. clear openable height = 750 mm. impact resistance of the sash (toughened glass) is four times higher than other sash materials (like safety glass and polycarbonate). breaking stress value for fully toughened glass (tempered glass) = 24,000 psi. • aerodynamic sash handle • single finger movement • timing belt for movement 16. wet & dry services valves remotely operated colour coded valves for fine control over utilities (as per din 12920 norms) total 5 nos. service valves with flexible hose with 6mm internal dia, withstands up to 5kgf pressure (all lhs) • 1 for raw water (pu) • 1 for vacuum(teflon) • 1 for comp. air (pu) • 1 for chilled water supply (cws) • 1 for chilled water return (cwr) – no valve only nozzle 17. maintenace ports openable top panel for easy maintenance of tube light and flow control valve. rectangular service panel for maintenance of utility valves and tubing. 18. internal nozzles brass powder coated fittings are staggered in the fume hood to avoid the intermingling of the flexible tubes. also, the taps are tapered in shape to use with flexible tubing of sizes from ¼” to ½” in dia, to provide greater flexibility to the user. 19. lighting fluorescent light (40 watt, 2 nos.) with vapour proof fitting for proper illumination. intensity approx 400 lux at worktop level. diffused light only, no direct lighting. 20. electrical utilities 6 nos. electrical sockets ‘north west’ make (230 v, 6/16 a, 50 hz), 6 nos. ‘north west’ make mcbs. light switch on front fascia. cables & wires ‘fire retardant low smoke’ grade. emergency stop push button for fume hood switches. 21. cable entering port dia 100 mm cable entry tunnel from fume hood front post to inner liner. with a plastic cover. for easy access of cables from fume hood to electrical sockets. 22. chemical storage base cabinet (ventilated & on castors) base cabinet will be ready to receive the fume hood at its top. it will have following features: 1) completely made from 1mm thick gi sheet with highly corrosion resistant epoxy powder coating,60 80 microns thickness. 2) cabinet integral work walls will be special chemical & heat resistant, smooth finish, easily cleanable panels made from durable prl sheets. 3) two exhaust ports connected to the fume hood exhaust system internally. 4) one removable horizontal partition to store chemicals. 5) pp trays for chemical storage. 6) cabinets on castors. 7) roller catch of “hafele”– germany” make for the base cabinet doors. 8) polyamide hinges from outside of base cabinet.overall dimensions: 860mm(w) x 600mm(d) x 655mm(h) with castors – 2nos. 23. apparatus holding grid (lattice assembly) a grid made up of epoxy powder coated rod (dia. 12.7 mm) to hold the apparatus. it will cover the entire length of the fume hood and will be built in at fume hood backside. installed at the distance of 150 mm from backside of fume hood. 24. air flow meter this device is an accessory for fume hood to indicate the approximate face velocity of airflow with primary purpose of warning when a low flow condition occurs. red & green leds correspond to low & normal flow rates. when flow decreases from normal to low, an audible alarm will also actuate requiring manual acknowledgement for silence. digital display of face velocity in m/sec or fpm. on screen display for safe and alarm conditions with audible alarm and led indication. push button calibration and configuration. plug in connections for power supply and airflow sensor 25. temperature indicator size 48 x 48 x 110, mm (panel cutout 44 x 44 mm). accuracy ±0.25% of reading ±1 lsd, ±1°c supply voltage 85 to 264 v ac, 50 / 60 hz user interface display: 2 rows of 3 digit x 7 segment high intensity led upper row : process value for pid 1 lower row: process value for pid 2 key board: 3 front panel keys for settings 26. level adjusting screws made of ss bolts to adjust the fume hood level by ± 10 mm 27. exhaust port unique exhaust port design ensures that the fumes will be exhausted smoothly without any turbulence at the exhaust port. also, it ensures low noise level. 28. flow control valve to regulate airflow. 29. noise level < 70db at 1 meter from fume hood. 30. sash lock at 450 mm to restrict movement of sash 31. face velocity should pass ashrae 110: 2016 test at 60 fpm 32. drawer drawer within the fume hood structure to keep stationery 33. pull out tray for keeping notebook 34. white board 300 mm x 450 mm white board for writing centrifugal blower: (for air suction in cluster of nos. of 6 ft. fume hood & no. of spot extractor) silent pp + frp high efficiency remote blower, consisting of continuous rating motor and chemical resistant impeller. it satisfies international safe velocity norms. 1. construction sisw type, chemical & heat resistant pp + frp blower with aerodynamically balanced pp impeller, with drain plug. 2. air suction capacity 2400 cfm confirming to international face velocity norms and as per safe fume hood airflow pattern. 3. motor ‘crompton / lhp/other reputed’ make, hp motor 3 phase tefc, ip 55, class f, continuous rating. as per is 325. 4. drive direct drive ducting: chemical resistant pp + frp (3mm + 2mm) rigid & flexible ductwork from fume hood to exhaust stack point with weatherproof canopy. total ducting with horizontal, vertical members, flanges, bends, bracketed supports and gooseneck exhaust stack. installation : it will be carried out by skilled team with ductwork design, fitting, fixing of blower, commissioning & testing of the same at a fixed extra cost testing: all fume hoods should be “factory tested” as per ashrae110:2016 face velocity norms. also, “onsite validation” to be carried out to ensure working of fume hood as per international norms. “tracer gas containment testing’ can be carried out at vendor’s factory. , supply of body & eye shower with glass bathing enclosure and ss frame the vendor shall provide overhead safety shower integrated with eye washer and fume hood with installation and also do the necessary civil and well as wiring work in a scientific required manner. specifications for safety shower enclosed in glass shower enclosure there shall be safety shower cum eye washer for decontamination of body in case of any toxic or chemical contamination. it shall be dual operation with hand or foot. the same will be enclosed in glass enclosure with proper water supply system and drainage system. the height of shower and bowl will be adjustable. material of construction: shower: ss 304 basin bowl: ss 304 shower foundation: ss 304 filter screens: ss 304 activation push plates: ss 304 piping: ss 304 waste strainer: ss 304 water flow atomizer: abs dimensions: a. total height: 2445+ 30mm b. shower height 2100 2400mm c. eyewash height 850 1150mm d. shower bowl: 10.5/8” e. eye water bowl: 11” f. piping: ¾” wall thickness 2.5 3mm g. inlet: 1” bsp, outlet ¾” h. ss push plate: 2 mm thickness i. ss pull rod: 6 mm thickness j. foundation diameter: 165 mm water flow: 1. inverted directional laminar flow. 2. protects nasal cavity. 3. filter capsule prevents water clogs for uninterrupted water flow. 4. attached dust cover (ppcp). 5. provided with filter capsule with flow controller (pressure range: 2.1 3kgf/cm2). 6. provided with ss filter screen to protect from unwanted impurities. 7. additional flow controller for pressure higher than 3kgf/cm2 8. under conditions of adequate pressure, minimum flow 11 l/min. receptor bowl: 1. straight edged and raised basin to prevent splashing. 2. ss bowl valve equipped with ss ball and steam ss .304 (1/2 for eyewash, 1for shower). drainage system: there will be a rectangular ss drain platform with perforation. the same will be minimum 60% of the area of the enclosure platform. this is need in an scientific manner to flush out the water from the system in seconds. glass enclosure: the above safety shower cum eye washer will be enclosed in u type glass enclosure so at the time of decontamination no spill spread takes place. the glass enclosure will have tiles of good quality at the back side and three side glass that include gate (u type). all glass will be toughened. glass thickness: 10 mm toughened (tufnik or jaguar) glass door: 2135 mm x 750 mm (minimum) glass enclosure dimensions: 1066 mm width x 1220 mm depth x 2133 mm height fittings, hinges and towel bar handle, l connectors: tufnik or jaguar shower cubical size: as per site requirement over head tank: 1000 ltr (syntex) water supply fittings: will be pp (astral) drain pipes: pvc (astral/prince) installation of safety shower and fume hood with ducting, electric connections and plumbing and required civil work: it will be carried out by skilled team with ductwork design, fitting, electrical work (all wiring will be in the concealed conduit), required civil repairs, commissioning & tetsing of the same. (vendor may visit the site). the whole work will be done scientifically keep in view all and future requirements of both the systems. between the two systems i.e. safety shower and fume hood there will be backlit glass/acrylic djb logo and lab certifications. civil work:demolition of existing slab and back wall tiles, re plastering of back wall and tile work. 10 x 18 including corner of another wall (180 sq feet). platform 10 x 5 of 2 height where safety shower and fume hood will be installed. vitrified tile of best quality on floor 12 x 6. there will be black granite on the platform front(12x2). the plumbring work that include installation of 1000 ltr water tank on the roof of the lab, connection of water of the systems, and drainage from safety shower to the drain as per specifications. , demolition of existing slabs, tiles, sink, floor tiles, cupboard, electrical fixtures and plumbing fixtures , installation of body shower and eye shower with glass bath and ss frame , installation chemical styorage with fume suction system including carriage. , fixing of eye shower with complete plumbing work to maintain pressure from djb mainline administration block with overhead tank including all necessary work. , fixing of floor tiles, wall tiles, complete electrical work and civil cutting of window, manhole with cover frame and all other necessary jobs. , testing & commissioning with 365 days of on site warranty...
Due Date : March 10, 2022
Tender Value : ₹ Ref. Documents