Engine 2014: General Subjects

1. A operating lever is parallel to the pipe center line when closed and perpendicular to the pipe center line when open
2. B valve can have additional turns of packing added when there is pressure on either side of the valve disk
3. C operating lever is parallel to the flow when open and perpendicular to the flow when closed
4. D valve seat can be relapped as needed

Tip: press A-D to answer