Quote:
| Originally Posted by NeilB On an Apex we used to rely on fine plastic threads holding them in place....it worked. |
That doesn't constitute evidence that it's a safe practice. It's testament only to your luck.
Quote:
| Originally Posted by NeilB The spindle is free to move in and out anyway when the valve is shut on most valves. Take a handle off a valve and see for yourself. Every one I have seen except the MDE has some movement. |
That's 'cos they're better engineered than most others, they work in a similar fashion. The spindle is not free to move in and out, it just has some axial (longitudinal) play. The end cap prevents the spindle from coming out, otherwise the knob would fall off.
Quote:
| Originally Posted by NeilB Because that valve is not stopping gas coming out of a cylinder it is stopping gas travelling down a tube from one cylinder to the other. Pressure is on both sides while the cylinders contain gas. |
The valve still works in a similar manner to the cylinder valves. When it's shut, the gas is held behind the slug.
TBH all this sounds like just doing half a job anyhow. In my experience the slug thread needs cleaning and lubing in order for the valve to turn more freely. Just ask Mal Bridgeman, he does every month or so
