9.5 Isolation Valve
Gas cylinders charged to pressures of greater than 50psi must incorporate an isolation valve that can be
operated from outside of the robot.
9.6 Remote Isolation Valve
Gas cylinders that do not incorporate a valve (for example: the gas is released as soon as the cylinder is
screwed into it€Ÿs mating pneumatic connection) such as found on disposable welding bottles and €žfizzy
drinks€Ÿ machines must have an additional remote isolation valve accessible from outside of the robot.
9.6.1 Position
Any remote isolation valve shall be positioned so as to minimize the pipe length between it and the
cylinder. This pipe length must fully vent before the cylinder is fully unscrewed from the pneumatic
connection.
If you are using a pin-valve type cylinders with screw in connectors then it is a requirement that you use a remote isolation valve. This should be the first item after the cylinder (e.g. not after the regulator).
The valve must be accessible from outside the robot and this means without inverting it.