Calibration Gas Supply and Cylinder Services for ONGC Dahej Plant

This tender is issued by the Oil and Natural Gas Corporation Limited (ONGC), under the Ministry of Petroleum and Natural Gas, for the supply of a comprehensive range of calibration gases and related cylinder services. The bid, identified by number GEM/2026/B/8125417, opens on October 7, 2026, at 1:27 PM and closes on October 28, 2026, at 3:00 PM. The procurement specifically requires the provision of various gas mixtures and pure gases in different cylinder volumes, including C2 gas (47 Ltr and 10 Ltr), C3 gas mixture (47 Ltr and 10 Ltr), C4 mix liquid (10 Ltr), 800 ppm NO in N2 (10 Ltr), 800 PPM CO in N2, 800 PPM SO2 in N2, CH4 16% in N2, O2 20% in N2, Nitrogen 99.999% (10 Ltr), Methane 2.5% balanced with Air (3 Ltr, 10 Ltr, and 0.5 Ltr), C3 Liquid Calib. GC (10 Ltr), C4 liquid mixture (10 Ltr), and LPG Liquid (10 Ltr). In addition to gas supply, the tender also includes essential cylinder maintenance and repair services such as replacement of valve safety guards, hydrotesting of cylinders, repairing of spindle gland nuts, and replacement of bent or damaged brass cylinder valves. The total quantity required is 137 units. The procurement is being managed by the C2 C3 Dahej Plant office.