tender for purchase of equipments , purchase of equipment , bench top glass insitu airlift photo bioreactor 1. vessel capacity: 3 liter borosilicate glass (working volume: two to three liters maximum), vessel hxd ratio 4:1 (400x100mm) 2. head plate & bottom plate moc: ss 316l 3. ports in top plate: ph sensor; dissolved oxygen (do) sensor; pressure sensor; air in and draft tube; air out; acid/base; sampling; and addition port. 4. mixing method: ring sparger to create airlift circulation inside the reactor for uniform mixing and better aeration. 5. holders for sensor /adapter / blind stoppers in head plate: ph sensor holder; media double inlet for acid/base dosing; air sparger - ring type for airlift application without stirring, air out with exhaust filter and open/close valve; pressure sensor holder; sampling pipe; blind stopper for un used port; unique suitable ss puncturing needles for sampling, air in, air out, inoculum, feed addition. 6. ports in bottom plate with stand: port for temperature sensor; heating finger u-tube heat exchanger; drain. 7. holders for sensor / adapter / blind stoppers in bottom plate: holder for temperature sensor, heating finger, u-tube heat exchanger. 8. sensors: temperature, gel filled sterilizable ph sensor, & pressure sensor. 9. controls and display: modular independent system of ph, temperature, pressure with touch screen graphical display & control; two set point control of ph with three-point buffer auto calibration; aeration by flow meter 0-5lpm with air pump; sterilization controls up to 121? without steam generator along with pressure safety mechanism by independent pressure sensor and digital display & control; automatic digital pressure safety and over temperature safety cutoff and alarm; upgradable control system for future prospective as cstr reactor & dissolved oxygen (do). 10. measurement and control range: ph: 2-14; process temperature: 20? to 60?; sterilization temperature: up to 121?; and pressure up to 15 psi. 11. fixed speed peristaltic pump: for acid/base dosing with teflon non spring head. (2 nos) 12. cooling system: chiller cum circulator. chiller temperature range 4? to 40?, bath capacity 5l to cool down the reactor after sterilization and to work process temperature below ambient condition. 13. illumination system: two illumination assembly with variable intensity control (1000-3000 lux) around the reactor with independent control switch for photobioreactor, or other application and easy detachable if not in use. 14. essential accessories : silicon tubing for acid/base addition (10m); air in and sampling (10m); water circulation (5m); air vent filters 0.2 micron sterilizable (6nos); and silicon septum (25nos) 15. starter kit: spare silicon-o-rings for head plate, bottom plate (1no each), all other ports (5nos each), alen key. 16. warranty: one year 17. support (must): unconditional onsite technical support shall be provided as and when needed. the supplier must provide complete installation and hands-on demonstration of the equipment at the user site upon delivery. 18. the vendor should have a registered presence in india with an authorized local service provider in tamil nadu.