Tender For procurement of refrigeration and air conditioning lab equipment for mechanical engineering department. - refrigeration and air conditioning lab equipment, cooling tower test rigexperiment: to determine the efficency of forced draft type coolingtowercooling tower:250 x 250 mm size, height 1000 mm,material: aluminum body with acrylic framepacking sheets: perforated aluminum corrugatedblower : 1hpgeyaser: 3 kw capacityindicator: digital temperature indicator 8 channelthermocouples:1 mtr length, cr. al, wire mesh sheathingair flow measurement: u tube manometer, material glass, size 300mmwater flow measurement: rotameter 0 to 60 cc/seccalibrated water tank : ms, 200 x 250 mm sizestarter: crompton/any reputed make., vapour compression refrigeration test rig compressor type: hermetically shield600 wcooling capacity: 0.3trtechnology: inverter controlrefrigerant: r 600ano of passes: singletube material: copperenergy meter: 1 phase 230 vtemperature sensor: rtd (5 no s)storage space: 591*621*1500 mmcondenser: finned tube typeevaporator: plate typeexpansion valve: capillary coil type, open type air conditioning test rigtechnical specificationstype : single cylindercompressor : 1 tondischarge : 0-10 lphrefrigerant : r 122 or suitablecondenser details : air cooledevaporator : 10 litre capacityno of passes : singleouter tube dia : 6mmexpansion device : capillary tubepressure drop : 0.5 kgf / cm2tube material : copperfan (230 volts 2 amps) : one no (for condenser)freezer box : evaporator unit consists of a ss freezerenergy meter : single phase 230 voltstemp. measurement : 5 no s rtd sensor will be provided to measurethe temperature pointtemperature indicator: 8 channel digital temperature indicator with selector knob to change the temperature point.the whole set-up is ingeniously designed and schematically arranged on apowder-coated rigid structure, recirculating air conditioning test rigcapacity: 1.0 tr compressor: hermetically sealed. condenser: forced convection air cooled.condenser fan:axial flow.drier/ filter: provided.expansion device:capillary tube.evaporator:forced convection air cooled.evaporator fan: axial flow typerefrigerant:r-22.hp / lp cut-out:alco/ or danfoss / or indfoss or any equivalent make.temperature: 6 channel facilities with digital display.pressure:2 nos.; dial type pressure gauges.air flow measurement: by inclined tube manometersupply:220-240 volts, 50 hz, 1 phase.input power: provided for compressor and heater.list of experiments:cooling of fresh air with full exhaust. (summer experiment)heating of fresh air with full exhaust. (winter experiment)humidification of air.cooling or heating the air with partial recirculation.(calculations for mixing of two air streams having different characteristics.)cooling of air with full re-circulation (operation of the system as a window air conditioner.)
Tender For corrigendum : empanelment of firms for supply of greenhouse material and repairing of greenhouses - replacement of existing poly sheet on roof, sides, entry gate, corners, etc. , replacement of profile (aluminum material) , replacement of profile (gi material) , replacement of spring (gi) , replacement of thermal net under the roof (50%) , replacement of shade net under the roof (50%) , replacement of supporting wires (3mm) for thermal/ shade net , replacement of pulleys for thermal/ shade net , replacement of pulling rope for thermal/ shade net (plastic material, 8-10mm thick) , replacement of plastic locks for thermal/ shade net , replacement of insect proof uv stabilized on all ventilation portions. , replacement of rolling pipe for side vents (27mm) , fitting material-curtain clamps (2mm thickness) , replacement of cooling pads (26 ft 6 inch) , replacement of alloy aluminium frame water recirculation system for cooling pad (86 ft 6inch) , replacement of pvc drain pipe for water recirculation system in cooling pads (63-90mm as per requirement) , replacement of gutter (2mm) , replacement of rain water gutter end cap (dia. 4) made from gp sheet duly machine fixed with gi clamp nut bolt with pvc drain (at the end) , replacement of axial fans(1250mm, 1.5hp) , supply and installation of air circulation fans (400-500mm dia. ss body, sealed motor, air capacity 4400 cfm) , replacement of polycarbonate sheet (6mm) all sides and top , replacement of existing poly sheet on roof, sides, entry gate, corners, etc. , replacement of profile (aluminum material) , replacement of profile (gi material) , replacement of spring (gi) , replacement of thermal net under the roof (50%) , replacement of shade net under the roof (50%) , replacement of supporting wires (3mm) for thermal/ shade net , replacement of pulleys for thermal/ shade net , replacement of pulling rope for thermal/ shade net (plastic material, 8mm thick) , replacement of plastic locks for thermal/ shade net , replacement of insect net , replacement of bottom apron (160gsm, 1.5 m wide) , replacement of trellising system , replacement of gutter (2mm) , replacement of side vent rolling pipe (27mm) , fitting material-curtain clamps (2mm thickness) , replacement of rain water gutter end cap (dia. 4) made from gp sheet duly machine fixed with gi clamp nut bolt with pvc drain (at the end) , replacement of four-way foggers (28lph) , drip line dia. 16mm, in-line emitters with 30cm spacing, flow rate 2lph
Tender For annual repair and maintenance of sub station : : - replacement of 1 kg silica gel breather metal body type , replacement of transformer oil 120 ltr , labor charges only for indoor 400 kva transformer and oltc stream line high vacuum oil filtration and dehydration of site off load 3 circulation 700 plus 210 ltr i.e 910 ltr x 2 i.e1820 ltr , breakdown voltage test transformer and oltc before and after test 4x2 i.e 8 nos , acidity test transformer and oltc before and after test 4x2 i.e 8 nos , testing of buchholz air relay testing 2 transformers , olts servicing drainage of old oil 210 ltrs , moving , fixing contact alignment , rolling contact testing in servicing. carbon rust cleaning and refitting the same , transformer buchholz relay and pipeline planch oil leakage arresting drainage of old oil , new gasket fixing oil leakage arresting refitting the same. topping of oil level , transformer h. t and l. t cable box ht and lt cable megar testing , transportation to bring testing kit to the site to and fro , and site halting charges , earth electrode testing , lt acb servicing and testing charges , ht vcb incoming outgoing transformer 1 and 2 serving and testing , auxiliary relay testing , high speed tripling relay test
Tender For supply of refurbishment of repair and recovery control centre d d - wall paneling and roof sealing with sunmica and plywood , outer lining fabric tactical grade water repellent , inner layer fabric thermal regulated , electro mechanical air circulation device wall installable , portable liquid retention unit
Tender For tender for supply of multi veh scan tool ( all light vehicle with tata and als heavy vehicle) , cooling exhaust fan for 40 kva genrs 230v single phase 1400 rpm , reachable portable led repair bay light 40 w with 8800 mah bty , air circulation device for modification of r&i sec , adjustable hacksaw frame 250 to 300 mm
Tender For ndustrial safety helmet red colour havi [industrial safety helmet red colour having glazed surface finish and made as per is-2925-1984. the helmet shall be made of abs grade plastic material suitable for use in heat zone application. the helmet shall have nape strap type adjustable ratchet with nylon tape chin strap. sweat absorption pad should be provided at the front of head band inside. an opening slot of 20mm x 3mm on both sides of the helmet is to be provided for fixing ear muffs. ventilation holes to be provided in the shell to permit circulation of air inside the helmet. the helmet should be isi/dgms approved and hence the helmet shall have isi/dgms mark. indian railway monogram shall be screen printed on the front side of the helmet. the successful bidder shall submit the sample after placement of purchase order and obtain approval of the sample before bulk supply as per cvc guidelines. offer should accompany copies of isi/dgms valid approval letter for technical scrutiny. size: medium. inspection will be carried out at rwf as per approved sample.]