SailNet Community - View Single Post - Gate valves and why we don't use them...
View Single Post
post #13 of Old 11-10-2008
sailaway21
Owner, Green Bay Packers
 
Join Date: Sep 2006
Location: SW Michigan
Posts: 10,318
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
       
Thanks for that link, bubb2. The picture is illustrative of how you can have a three foot diameter gate valve and still allow one man to close it! It can also be noticed how the stem rises up through the wheel as it opens which allows it to be lubricated periodically. The packing in the stuffing box is replaceable and the box itself is adjustable for wear and compression of the packing to prevent leaks.

Here's a non-rising stem model approved by Lloyd's fro marine use.
http://www.johnsonvalves.co.uk/Data/...te%20Valve.pdf

“Scientists are people who build the Brooklyn Bridge and then buy it.”
Wm. F. Buckley, Jr.
sailaway21 is offline  
Quote Share with Facebook
 
 
For the best viewing experience please update your browser to Google Chrome