What does the 125 on this seacock mean?

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webcraft

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I have managed to unscrew this gatevalve from the original through-hull and am looking for a replacement lever-operated ball valve. Need it to be the right size to screw onto the existing through-hull thread.

gatevalve_seacock.jpg


I assume this https://www.asap-supplies.com/dzr-valve-female-each-end-405704 would fit the bill?

- W
 
No idea what 125 means, but the 3/4" is of course significant. The biggest gotcha with BSP is getting confused with parallel and tapered threads, but you seem to have avoided that in the link.

These days I just replace the skin fitting, ball valve & hose connector at the same time. However if you are confident in the material of the skin fitting it should be fine (this is no guarantee :) )
 
You are right to replace it with a ball valve as gate valves like that have no place on a yacht and should be replaced. Gate valves have a nasty habit of getting stuck and for the coarse threads that lift the gate wearing out and stripping. Where ball valves are concerned you just have to avoid buying ones designed for domestic use and made of plain brass. DZR brass or bronze are both OK though I prefer to fit TruDesign plastic ones. For good DZR ones I suggest you look at the ASAP website.
 
TruDesign state: Large operating temperature range (-20° to +90°C)

ISO 9093-2 and RCD state: Seacocks shall withstand a storage temperature without operation of − 40 °C to + 60 °C when kept dry.

My copy of ISO 9093-2 might have been superseded!
 
Rikds said:
TruDesign state: Large operating temperature range (-20° to +90°C)

ISO 9093-2 and RCD state: Seacocks shall withstand a storage temperature without operation of − 40 °C to + 60 °C when kept dry.

My copy of ISO 9093-2 might have been superseded!
Click to expand...

A boat whos seacock are "kept dry" wont get osmosis either
 
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