Gate valves should not be used ( despite their use by Benne, Jennaeu and others). Thread types should not be mixed.
Joel 35/3 Hylas 44 Annapolis On Mon, Apr 11, 2016 at 12:59 PM, Robert Boyer via CnC-List < cnc-list@cnc-list.com> wrote: > As I recall, the reason they shouldn't be mixed is that Marelon fittings > have straight (non-tapered threads) while most bronze fittings have tapered > threads. If these are mixed the softest material of the two will have > deformed threads. I have been careful not to mix them for this reason. > > Bob > > Bob Boyer > S/V Rainy Days (1983 C&C Landfall 38 - Hull #230) > Blog: dainyrays.blogspot.com > Email: dainyr...@icloud.com > Annapolis, MD (presently in Baltimore) > > On Apr 11, 2016, at 12:51 PM, Randy Stafford via CnC-List < > cnc-list@cnc-list.com> wrote: > > Listers- > > My 30-1 has gate valves at the cockpit drain through-hulls. Don Casey > writes that gate valves are inherently unsafe and must not be substituted > for seacocks. Any opinions on this issue? > > While I'm at it, Casey also writes that plastic (Marelon) through-hulls > should not be mixed with bronze nuts and seacocks, which my boat does. He > writes only plastic nuts and seacocks should be used with plastic > through-hulls. Thoughts on that one? > > Thanks, > Randy Stafford > S/V Grenadine > C&C 30-1 #7 > Ken Caryl, CO > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > like what we do, please help us pay for our costs by donating. All > Contributions are greatly appreciated! > > > _______________________________________________ > > This list is supported by the generous donations of our members. If you > like what we do, please help us pay for our costs by donating. All > Contributions are greatly appreciated! > > -- Joel 301 541 8551
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