bids are invited for oxygen flow meter - supply installation testing and commissioning of oxygen back pressure compensated flow meter with control range of 0-15 lpm (calibration within +10%) with 250 ml humidifier bottle made of unbreakable polycarbonate material and auto cleavable at 121 degree centigrade temperature.the flow meter shall be strict precision, durability standard and body shall be made of brass chrome plated materials.the flow tube and shroud components shall be made of clear, impact resistant polycarbonate.the flow tube shall have large and expanded 0-5 lmp range for improved readability at low flows with inlet filter of stainless steel wire mesh to prevent entry of foreign particles. , copper piping 15 mm od x 1.0 mm thick - supply, installation testing and commission of cop[per piping 15 mm od x 1.0 mm thick with complete fittings/fixtures as per medical standards. , alarm box - supply, installation, testing and commissioning alarm- valve box as per din en iso 7396-1 or oxygen.the alarm panel shall be enclosed in a steel decorative frame power coated duly powder coated and shall be designed to accept an electrical input range of 120-240 volts ac 50-60 hertz.the panel shall contain audible and visual alarm indicators with the features mentioned in terms and conditions. , 15 mm od medicalline valve of isolating valve - supply, installation, testing and commissioning of 15 mm od medical line valve or isolating valve as per ce certified/ htm-2022/02-01/din/iso/bs en 1057 or ball valves as per bs 1057, rated at 400 psig, as well as full vacuum(29.9” hg).valves go from full on to full off by turning the vinyl-gripped valve handle 90 degree locking type handles may be ordered separately when required. copper tubing is factory installed to help prevent valve seat damage during soldering main and riser valves are not required to be installed in a box unless specially noted or required. , oxygen gas outlet points - supply installation, testing and commissio