Main Seachest Seacock Size Confirmation?
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Bill Kinney
We are going to need to replace the main seacock under our seachest. I assume this is a 1 1/2" BSPP thread fitting. Can someone who has done this confirm the sizing and thread spec?
As a straight thread fitting, I don't have access to the thread to check until AFTER I take it apart. And if it is a BSPP thread it is going to be a special order here. I REALLY don't want to be sitting on the hard, waiting for the right part to be delivered this far down island! Thanks! Bill Kinney Sm160, Harmonie Port Louis, Grenada http://www.cruisingconsulting.com |
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Paul Stascavage
Bill,
I can't help you with the size or threads. However, If you are referring to the main seacock below the strainer that feeds the seachest, I can tell you that we had to replace ours and purchased it directly from Amel. It was shipped in a few days. The cost late 2018 was 195 Euro for the parts in the photo. Invoice Description - Kit plomberie et raccord filtre eau de mer VETUS/ Set of plumbing and connectors (plastic and steel). All the best, Paul Stascavage SM #466 - s/v Rita Kathryn Exploring Fenandina Beach, FL www.RitaKathryn.com  |
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Paul, That's the way to go. SAV does it again!!! Best, CW Bill Rouse Amel Owners Yacht School +1 832-380-4970 | brouse@... 720 Winnie, Galveston Island, Texas 77550 www.AmelOwnersYachtSchool.com Yacht School Calendar: www.preparetocastoff.blogspot.com/p/calendar.html Bill, |
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Bill Kinney
I confess to have an (admittedly somewhat irrational and emotional) preference for the original bronze valve over plastic for this application. Especially since with a plastic valve, I don't see any way to connect the metal thru-hull fitting to the bonding system?
Bill Kinney SM160, Harmonie Port Louis, Grenada http://www.cruisingconsulting.com |
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Hi Bill, As I understand, Amel is building all new vessels with plastic through hulls that match the valves; this obviates the bonding connection entirely. My surveyor has strongly recommended changing all the below-water through hulls with plastic, and as I look at the original through hull and valve for the forward head and anchor wash, I can only imagine the pinkish, brittle bronze just ready to snap. I’m hoping it’ll hold through a on-week voyage to the haulout facility where I’ll be able to change it out for plastic. One of the first things I did was get a set of wooden bungs, as the boat, curiously, was not fitted with them or the cleaning crew that prepared the boat for sale got overzealous. Cheers, Tilo Ambiente, SM163 Sanremo, Italy On 14 Oct 2022, at 06:24, Bill Kinney <cruisingconsulting@...> wrote:
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Vladan SV PAME
Bill,
I don't know on SM but on my A54 it's 2" or 50 mm thread on seacock. As of BSPP I can't be 100% sure but I think it is as all other valves I replaced on boat were BSPP I replaced seacock ball valve which I ordered from Sofomarin. Model RXVD50 - RBS 2 VOIES DN50 - 2". Price was EUR 77,77 before VAT Best Regards, -- Vladan A54 #157 SV PAME |
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Bill Kinney
Just to close the loop here, the threads on our thru hull to the seachest were, as expected, 1 1/2” BSPP (British Standard Pipe, Parallel). There were no structural problems with the old valve, but the chrome plating on the ball was pitted and coated with calcium from decades of biology. This left it so hard to turn, we were worried about shearing off the valve stem. We had already bent the handle. We might see if we can refurbish it and keep it as a spare. |
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