55 / 140 55 part no. large o-ring, 10 pack 305656 small o-ring, 10 pack 300571 o-ring set 2 small and 2 large 300570 size gas flow material thickness sb pack cleaning needle no. oxygen l/h mm aga no. / part no. aga no. / part no. 1 80 < 1,0 214 100 167 / 300602 206 000 080 / 300482 2 160 1,0 – 2.0 214 100 168 / 300583 206 000 160 / 300455 3 315 2,0 – 4,0 214 100 169 / 300600 206 000 315 / 300458 4 500 4,0 – 6,0 214 100 170 / 300599 206 000 500 / 300461 acetylene pressure: 0.3 bar oxygen pressure: 3 bar gas flow l/h aga no. / part no. a. nozzles for the welding attachments in table 12 40