--- In [email protected], Derek Atkin <atkin...@...> wrote: > > That is the eventual plan. In the short term - I want to get rid of the gate > valves. > > Derek.-
Derek, AS far as I know, the threads on a regular thru hull, mushroom etc., are NPS. The Catalina "volcano" thru hull is just a piece of pipe stuck thru the hull and is NPT. Mark Solution #4289 > > > > > > ________________________________ > From: sailmark4 <sail_master...@...> > To: [email protected] > Sent: Monday, March 23, 2009 6:55:31 AM > Subject: [IC27A] Re: Are factory Cataling thru-hulls NPT ? > > > --- In ic...@yahoogroups. com, Derek Atkin <atkin11j@ .> wrote: > > > > > > I removed all my gate valves this afternoonandwant to replace with ball > > valves. They look to be NPT by the way they were sealed. Are these all NPT > > or NPS ? > > > > Thanks > > > > Derek.- > > #4297 > > 79 c-27 > > Derek, > You may want to consider replacing your thru hulls with flanged seacocks. > The Catalina system is generally known as pretty weak. Over the long haul, > the extra $$$ and labor is worth the piece of mind. > > Mark > "Solution" #4289 > > >
