Stern Glands

gravygraham

gravygraham

Well-Known Member
Joined
8 May 2007
Messages
2,286
Location
The wilds of Kent
Visit site
On our boat the stern glands are sealed by an arrangement of a stainless steel collar clamped onto the shafts rubbing against a non-rotating graphite(?) collar fixed onto a rubber bellow on the end of the tube (I'm sure there's a nautical name for this device). The fixed and rotating parts are lubricated with seawater drawn through the hull and delivered via a nylon threaded hose fitting going into the graphite part. Anyway, this nylon hose connector has broken and would the panel think it suitable to replace with a brass fitting, which will hopefully be stronger?

Thanks in advance for any answers folks.
 
From your Profile I see you have a 'Kent 33'.
Displacement vessel if I,m correct?

Anyway, it matters not, dunno why I typed that!

Yep, if you can source a brass fitting I would do so
The 'new' fitting for my trad stern gland came in plastic, which I trod on, which I broke.

It is now brass again which I haven't trod on
Yet!
 
If using a metal fitting it is advised to bond it to the anodes as after a few years it will corrode from the inside and then fall off on it's own. Probably when your not there to see it!
 
gravygraham said:
On our boat the stern glands are sealed by an arrangement of a stainless steel collar clamped onto the shafts rubbing against a non-rotating graphite(?) collar fixed onto a rubber bellow on the end of the tube (I'm sure there's a nautical name for this device). The fixed and rotating parts are lubricated with seawater drawn through the hull and delivered via a nylon threaded hose fitting going into the graphite part. Anyway, this nylon hose connector has broken and would the panel think it suitable to replace with a brass fitting, which will hopefully be stronger?

Thanks in advance for any answers folks.
Click to expand...

PSS shaft seal.

T Norris are the agents http://www.tnorrismarine.co.uk/pss.php

Good people to deal with.

Remember if you use plain brass barbed nipple it will likely be subject to dezincification even if shaft is bonded, once zinc has leached out fitting will have tensile strength of a carrot and be just as predictable. However whichever way you decide to go remember tapped thread is NPT not BSP.
 
You must log in or register to reply here.

Share this page

Top