2.3 Equipment Requirements
2-13
AA-6800/6650 Instruction
2.3.7 Installing Pressure Regulators (Optional) and Checking for Leaks
(1) Wipe any dust adhering to the outlet of the cylinder.
(2) Refer to Figures 2.7
to
2.9 to install these pressure regulators on the cylinders. If the screw for mounting
the regulator on the cylinder appears ready to break, replace the cylinder with
out attempting to mount the
regulator.
(3) Open the cylinder main valve gently after closing the stopcock and turning the secondary pressure control
handle sufficiently counterclockwise.
(4) Turn the secondary pressure control handle clockwise and set the secondary pressure to the following
values:
Acetylene 0.09 MPa
Hydrogen 0.09 MPa
Nitrous oxide 0.35 MPa
Argon 0.35 MPa
(5) Apply soapy water to each of the connecting joints to check for leaks. Due care should be taken to detect
and eliminate any leaking at the cylinder cock.
WARNING
1. If a mistake is made in the piping, it may cause flashback on ignition, so exercise sufficient caution.
2. Always set the gas supply pressures at the specified values.
3. Never use a broken regulator. This may result in an accident.
To Next Page