... be adjusted to 0.25±0.02Mpa. Use flow regulator ass. To adjust oxygen flow, the safety flow rang is: 1-5L ... /MIN. If flow regulator unworkable, open the safety valve, keep the ... , 4.0, 6.3, 8.0, 10L.Technical Parameter:1. Oxygen flow:1-5l/min;2. Adjust pressure: 0.25±0 ...