Supply, Installation, Testing and Commissioning of HVAC Ducts at 1st and 2nd Floor of Adm. Building Annexe at NRL Site

Amount

Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. Thickness 0.63 mm sheet

Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. Thickness 0.80 mm sheet

Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. Thickness 1.00 mm sheet

Supply, installation, balancing and commissioning of factory fabricated GSS sheet metal rectangular/round ducting complete with neoprene rubber gaskets, elbows, splitter dampers, vanes, hangers, supports etc. as per approved drawings and specifications of following sheet thickness complete as required. Thickness 1.25 mm sheet

Supplying & fixing of powder coated extruded aluminium Supply Air Grills with aluminium volume control dampers as per specifications.

Supplying & fixing of powder coated extruded aluminium Return Air Grills with louvers but without volume control dampers complete as required.

Supply,installation and testing of multiblade type GI Duct Damper for duct/collars to be provided with suitable links and quadrants for control of volume of air

Supplying & fixing of powder coated Linear extruded aluminium Supply / Return Air Grills with aluminium volume control dampers as per specifications. air grills 100mm

Supplying & fixing of powder coated Linear extruded aluminium Supply / Return Air Grills with aluminium volume control dampers as per specifications. air grills 150mm

Supplying and fixing of acoustic lining of duct with Open Cell Nitrile Rubber density 140-180 Kg/m³. Applied by Adhesive, conforming to standard specification. 10 mm thick open cell nitrile rubber.

Supply & Installation of Thermal Insulation on Ducts not exposed to sunlight using Closed Cell Class O Nitrile Rubber Elastomeric Insulation of Density 40 - 60 Kg/m3, Thermal Conductivity of 0.037 W/mk at 20 Celcius Mean Temp. and µ≥7000 (without any additional vapour barrier) and with factory laminated aluminium foil of minimum 60 Microns thickness having weight of 193 gsm as per EN ISO 2286-2, tensile strength shall be 90N/15mm as per EN ISO 527-3 with elongation > 10% as per EN ISO 527-3; to be applied on Ducts using manufacturer's recommended Rubber based Adhesive in a blend of Solvents. 19mm

Supplying, installing, testing and commissioning of Pressure Independent Variable Air voulme Terminal units, suitable for installation in ducts. Double skin acoustically lined casing of galvanised sheet steel construction. Accessories such as single / multileaf damper (with equal % characteristics), actuators, control cabling , feed back control cabling in 25 mm dia MS conduit between thermostat & actuator and any other ancilary requirement for the functioning of the units. Duct mounted Diff. pressure transmitter with cabling upto VFD panel shall also be included. Modbus/Lon Works/Bacnet as the communication protocol between BMS & VFDs. The capacity shall be as follows: 1400 cfm

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. Damper

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. Actuator

hlk infrastructure pvt ltd