corrigendum - purchase of tools and equipments in various trades, govt. iti kalamassery - :- 1.21 water pump for dismantling and assembling ( lmv type.two different types ) 1.22 welding plant oxy acetelene complete ( high pressure ) 1.oxygen and acetylene cylinders, :oxygen cylinder with capcapacity -7cu.m brand new, empty, high pressure, seamless steel gas cylinders, flat type, concave bottom cylinders as per, is 7285 ( part 2 ) 2004. complete with neck ring and valve and cap, valve as per is 3224, painted as specified under gas cylinder rules 2004, supported with manufactures test certificate and approval from chief controller of explosives- govt: of india, nagpur. the test certificate should be valid for 05 years. 2.dissolvedf acetylene cylinder with cap- capacity 6cu.m :brand new, empty, high pressure, seamless steel gas cylinders, flat type, concave bottom cylinders as per, is 7285 ( part 2 ) 2004. complete with neck ring and valve and cap, valve as per is 3224, painted as specified under gas cylinder rules 2004, supported with manufactures test certificate and approval from chief controller of explosives - govt: of india, nagpur. the test certificate should be valid for 02 years. 3.high pressure welding torch no: 2 ( isi ) with nozzle no:1, 2, 3, 5 and 7:gas welding blow pipe ( torch ) with flash back arrester for versatile applications using oxygen and acetylene gases. five different nozzle nos of 1, 2, 3, 5 and 7. maximum plate thickness that can be welded 35mm, tip thread: m10x1. welding transformer ( 150-300 amps ) transformer welding set with accessories general tyristorised power source ( 2 ) air - cooler machine , ( 3 ) linear current indicator scale, 4 ) class a- insulation with suitable buffering material for thermal resistance, ( 5 ) light weight and compact 6 ) protection class - ip 23 input: 1 ) supply voltage - 415v , 3 phase 50 hz ac ( 2 ) rated input current - 63a ( 3 ) rated input kva - 15kva