Tender For supply of spares of thermal pressuresafetyvalves for gail mansarampura region - tsv 0.75inch 600 x 1inch 600 flanged 98 kg per cm2 , tsv 0.75inch 600 x 1inch 600 flanged 49 kg per cm2 , tsv 1.5inch 900 x 2inch 300 98 kg per cm2 , tsv 0.75in nptm x 1in nptf 18kg per cm2 lpg , psv 1inch 150 x 2inch 150 10 kg per cm2 inst air