Tender For Supply, Installation, And Demonstration Of Tubular Furnace, Thiruvananthapuram-Kerala

Tender For Supply, Installation, And Demonstration Of Tubular Furnace1 Furnace type Electrically heated horizontal tubular furnace Yes / No / Explain 2 Effective working hot zone a). Hot zone Tube size - 100 mm diameter x 300 mm Length Yes / No / Explain 3 Uniform Hot zone size b).Uniform Hot zone size -100mm diameter x 200mm Length Yes / No / Explain 4 Working temperature range Room Temperature to 1400˚C Yes / No / Explain 5 Temperature control accuracy ±1˚C (Microprocessor based programmable PID Controller) Yes / No / Explain 6 Hot zone temperature uniformity ±3˚C within the length of 300mm Yes / No / Explain 7 Heating element The heating element shall be made of MoSi2/SiC/suitable. Yes / No / Explain 8 Tube Material Tube shall be made of 99.99% recrystallized alumina. The material should be processed to withstand continuous operation at 1350˚C and thermal shock due to door opening at high temperature. Yes / No / Explain 9 Furnace construction Furnace construction shall be of ceramic fibre type insulation. The outer housing shall be made of SS304. Yes / No / Explain 10 Working Medium Air and inert gas atmosphere Yes / No / Explain 11 Gas Purging system Suitable provision shall be provided for gas purging. Appropriate hose connection with flow meter and control valves shall be fitted to control the gas flow. End seals shall be made of Stainless Steel and provision shall be made for gas inlet and outlet. Expected flow rate range will be 0 to 4lpm Yes / No / Explain 12 Control Thermocouple Controlling thermocouple S-type or R-type. Thermocouple shall be sheathed with recrystallized alumina and complete set of connecting holder and compensating wire shall be given. The control thermocouple shall be placed in the middle of hot zone. Yes / No / Explain 13 Safety Thermocouple The safety thermocouple shall be positioned outside the tube to monitor and control the temperature around the outer periphery of Alumina Tubes and heating elements. Yes / No / Explain 14 Control and Display Microprocessor based digital PID programmable temperature controller and its control accuracy shall be ±1˚C. The controller should be capable of storing at least 8 programs each having 12 segments at least. Dwell type digital display shall be given, one for furnace set temperature indication and other for actual furnace temperature indication Yes / No / Explain 15 Control console panel Control panel shall be kept below the furnace (table type). All control instrumentation, control switches, lights, alarms, relays and power indicators etc. shall be provided in the panel. Control panel shall be equipped with a) Thyristor power unit b) Temperature controllers with alarms c) Digital voltmeters for 440V AC (for each phase) e) Digital safety temperature controller f) Temperature indicators g) suitable control switches/relays h) Control switches, light and alarms Yes / No / Explain Tender 16 Calibration Thermocouple (including spare), temperature controller and indicator shall be calibrated from 100˚C to 1400˚C at the interval of 100 ˚C. Calibration shall be done by NABL accredited lab. Hot zone calibration shall be done at 600˚C and 1400˚C. Calibration certificate shall be given with all necessary details including reference instrument details Yes / No / Explain 17 Furnace outer body (skin) temperature Shall not exceed 40˚C at maximum operating temperature Yes / No / Explain 18 Warranty Minimum of 12 months from the date of commissioning Yes / No / ExplainUndertaking is to be provided for spares and supports for minimum of 10 years. - 5 Provide users list (institutions /industries) to whom the machine is supplied. - 6 A Compliance sheet is to be filled properly and attach required documents. - 7 Supplier shall install and demonstrate the furnace as per P.O specification at our location

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