supply of supply of empty dissolved acetylene cylindersupply of empty dissolved acetylene cylinder,supply of empty dissolved acetylene cylinder, type three piece welded to is 7312 as per foll owing technical requirement (1) water capacity: 41 ltrs (+3% , -0%) (2) hydrostatic stretch test pressure: 5 3 kgf/sq. cm (3) pneumatic leakage test pressure: 40 kgf/sq. cm (4) maximum working pressure at 15 degr ee celcious: 16 kgf/sq. cm (5) gas capacity: 7 kgs (6) outer dia: 258 mm (7) inner dia: 250 mm (8) wall thi ckness (nominal: 04 mm) (9) length without valve 960 mm (approx.) porous monolithic calcium silicate (11 ) porosity 90 to 92% (12) crushing strength (min) : 22 kgf/sq. cm (13) solvent: acetone ch3coch3 (14) em pty weight: 55 kgs. (15) valve confirm to is: 3224 (16) fusible plug as specified under gas cylinder rules 2 004 & supported with manufacturers test certificate, certificate and approval from chief controller of expl osives, govt. of india. [ warranty period: 30 months after the date of delivery ] ]