Replacing gate valves with ball valves

[balthaus]

So one of my winter projects will be replacing the old gate valves with ball valves.
I have a few questions For those that have done this.
Can I just replace the valves or do I need to replace the thru-hulls as well?
What is a quality brand of ball valve?

[bill]

I used a brass ball valve when I changed out my old gate valves
but if you what the best then go for it.
https://assuredautomation.com/21/?p=buy
a bit of over kill.
These are stainless steel with latching lever handles.
I used my old thru-hulls as they were in good condition
bill

[Rockit]

I'm with you. I do not like gate valves. I think there only one left in my house--one I have not gotten around to replacing yet! I could not imagine keeping them in the boat.

In the "may as well" theme, while you are ordering parts and doing work you may want to consider this:

http://www.groco.net/SVC-MAN-07/Sec4/PDF/SSC.pdf

They are on the engine through hulls on my 28. To winterize I used the adapter to hook up a short section of garden hose that I inserted into a five gallon bucket fed by a garden hose and when it was clear the thermostat was open, I turned off the city water and substituted antifreeze. After the antifreeze was coming out the exhaust, I turned off the gas and started fogging the engine until it quit.

So for a few bucks more, you get this setup.

Of course if you replace the whole unit with bronze or stainless, you need to isolate it from the hull.

Good luck.

Joe

[bruegf]

I'd use Marelon seacocks. You should never use gate valves or ball valves, only seacocks.

http://www.pbase.com/mainecruising/seacock_primer

Fred

[balthaus]

Fred
Thanks for that link. I believe I have seen that before.
I will check in to the Marelon

[bill]

I'd use Marelon seacocks. You should never use gate valves or ball valves, only seacocks.

http://www.pbase.com/mainecruising/seacock_primer

Fred

Thanks Fred,
Great article on seacocks.
bill