Figure 15-25.—Single-stage oxygen regulator.
handle until the desired pressure is registered. Turning
is that the total pressure decrease takes place in two steps
the adjusting screw to the right INCREASES the
instead of one. On the high-pressure side, the pressure
working pressure; turning it to the left DECREASES the
is reduced from cylinder pressure to intermediate
working pressure.
pressure. On the low-pressure side, the pressure is
The operation of the two-stage regulator is similar
reduced
in principle to the single-stage regulator. The difference
pressure.
15-19
from intermediate pressure to working
Because of the two-stage pressure control, the
