Delhi Jal Board-DJB has published Procurement Of Supply Installation Testing Commissioning Of Ducted Fume Hood. Submission Date for this Tender is 08-04-2022. Laboratory Enclosures and Accessories Tenders in delhi Delhi. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Specification for SITC of Ducted Fume hood Fume hood shall be designed to limit exposure to hazardous or toxic fumes in Lab Environment. It will bypasses all toxic fumes from Lab by a duct. Internal material of Fume Hood shall be made by 6 mm chemical resistant Phenolic Resin Laminate and outer body also made by GI Sheet with Epoxy Powder coating. 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 Sr. No Specification Description 1. 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. 2. Design Structure Aerodynamic, Floor mounted 3. Airflow Type Low Constant Volume (for A.C. environment) 4. Powder coating Complete metallic parts shall be processed with multi tank pre- treatment and finished with highly corrosion resistant "Kansai Nerolac /equivalent epoxy powder coating with 70 - 80 microns thickness. Our Automatic coating plant and fully conveyorizedoven 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. 5. 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 6. Front Top Panel Easily openable hinged gas spring based top panel for easy access to Flow Control Valve and Electrical Lighting fixtures for maintenance. 7. Corner PostTriangular profiled corner post is placed on LHS and RHS of the Fume hood and it houses the utility line fittings and electrical receptacles. 8. 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. 9. Active Kinetics exhaust system Interstitial 7-point active kinetics exhaust system (for light, normal & heavy fumes) with baffle to ensure rapid exhaust of fumes. 10. Airfoil Aerodynamic Design, Horizontal fixed airfoil mounted on the worktop made of SS 304 (1.2mm) Teflon Coated. 11. 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. 12. 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. • 13.Oval shaped 100 mm X 200 mm sink 13. Sash (Shutter) Vertical/C14.ombinational 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 14 Wet & Dry Service 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 Nitrogen(PU) • 1 for Vacuum(Teflon) • 1 for Comp. Air (PU) 15. Maintenance ports • Openable top panel for easy maintenance of tube light and flow control valve • Rectangular Service panel for maintenance of utility valves and tubing. 16. 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. Note: - Our Scope of supply for utility lines ends at 1/4th BSP male adopter. 17 Lighting Fluorescent light (40 watt, 2 Nos.) with vapor-proof fitting for proper illumination. Intensity approx 400 lux at worktop level. Diffused light only, no direct lighting. 18. 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 19. 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. 20. 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. 21. 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. 22. 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 23. Level adjusting screws Made of SS Bolts to adjust the fume hood level by + 10 mm. 24. 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. 25. Flow control valve To regulate airflow. 26. Noise Level < 70db at 1 meter from fume hood. 27. Sash lock At 450 mm to restrict movement of sash 28. Face velocity Should pass ASHRAE 110: 2016 test at 60 FPM 29. Drawer Drawer within the fume hood structure to keep stationery 30. Pull out tray For keeping notebook 31. White board 300 mm X 450 mm white board for writing CENTRIFUGAL BLOWER: There shall be silent PP + FRP high efficiency remote blower, consisting of continuous rating motor and chemical resistant impeller. It satisfies international safe velocity norms. Sr. No Specification Description 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 DriveDirect Drive DUCTING: It shall be 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. 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. INSTALLATION: Provision, fixing, commissioning and testing 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 as per site requirements. (Vendor may visit the site) Allied civil work and electrical work: Demolition of lab slabs, cupboard, platform, plaster and tiles etc of the size of fume hood. Plaster and fixing of damaged wall tiles & floor tiles Underground wiring for fume hood. Make: GD Labs, Lab Guard, Kewaunee |
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