Ainda não temos significados para "piston valve".
1Remove the broken piston valve, reduce boiler pressure to 100 pounds and proceed.
2How would you place engine to locate broken admission steam ring in piston valve?
3How would you locate broken exhaust ring in piston valve?
4A piston valve can be either inside or outside admission, while a slide valve is always outside admission.
5If piston valve on cross compound was broken so it became necessary to remove it, what should you do?
6If during a trip you found the piston valve rings of a cross compound were broken, what would you do?