Indian Institute Of Technology Tender

Supply, installation, testing & commissioning of Tube Axial Flow Fan with adjustable pitch. The blade of the fan shall be made out of cast alluminium alloy duly dynamically and statically balanced mounted directly on TEFC Sq. Cage induction Motor suitable for 3 phase 415 V ± 50 C/S AC supply with cylindrical casing made of welded pre galvanised/MS powder coated sheet with spun flanges, motor support, bird screen and gravity louvers etc.( The fan speed should not exceed 1000 RPM). Note : a) All motor shall be EFF-1 and F-Class. b) Fan motor speed shall not exceed 1450 RPM. c) Fan outlet Velocity shall not exceed 12.6 m/s for Normal Operation. d) Fan outlet Velocity shall not exceed 16.0 m/s for Emergency Operation. e) Factory fitted Backdraft dampers and all accessories shall be part of the Axial fan. f) All Exaust Fans shall be fire rated for 250 deg C for two hours. g) All Axial fans should be licensed to bear AMCA seal for air performance and sound performance or must be demonstrated in AMCA accredited as per AMCA publication. h) All Axial fan shall be inside casing no shortcasing is allowed. i) Impeller of all Axial fan shall be adjustable type. j) Required high temp certificate (fan along with motor shall be tested for 250deg-2hrs as per EN12101:3-2015) mentioned fan model and motor make. k) Efficiency of fans shall be minimum 70%.

Part-A

Supplying and fixing 63 mm dia, 15 m long RRL hose pipe with 63 mm dia male and female couplings duly bound with GI wire, rivets etc. conforming to IS 636 (type-A) as required including buyback of existing hose pipe with Gunmetal hose coupling.