Caulking Ferrules

ferrulles are ferrulles - Who is caulking them? Honestly never heard.

Interesting question, thought I'd look it up myself. Here is a web site for your perusal.

basically:

1. A metal ring or cap placed around a pole or shaft for reinforcement or to prevent splitting.
2. A bushing used to secure a pipe joint.

http://www.answers.com/topic/ferrule?cat=technology

http://books.google.com/books?id=ZpEkoie_SqgC&pg=PA145&lpg=PA145&dq=caulking+ferrules&source=web&ots=p3usEd92Ba&sig=A0urJX6T26invLCJs1VAWRrKkdU#PPA163,M1

I hope this will help, if anyone knows better, then ignore me completely.

Caulking usually refers to placing waterproofing materials between planks of a ship or boat's hull to prevent ingress of water. the planks not always being a perfect fit one to the other. These small gaps would let in water if simply ignored. Usually it is natural hemp or similar (from old rope) that is soaked in Tar or similar. Special Caulking tools are needed to to force it between the planks under high pressure to fill the gap and seal it.

So I guess that you have some round item (a ferrule is usually shaped like a tube with the ends open), like a tube and it needs caulking or waterproofing material placed between it and whatever it needs to cover, to either prevent water (or some other fluid) entering or exiting, I am guessing a bit here!!!

Good luck anyway.

Caulking is the placement of the waterproof sealant around joints, like fixtures stubbed into a bath tub or the frame of the bath tub where it meets the wall.

Caulking ferrules are the bell end of cast iron soil pipe, which is sealed to the bald end of the supplying pipe section (bells always at source end of pipe) which is then caulked by installing a jute rope for both a filler and a swelling moisture seal. The rope is caulked in with a "caulking iron" (see mcmaster.com) to compress and pack the rope, then molten lead is poured in the joint, and then the cooled lead is again iron caulked into the ferrule. The jute or hemp rope is thus confined such that any water passing the joint will swell the confined rope, increasing the pressure in the water tightness, similar to the caulking of ship planks. For vertical joints, the lead is poured into a "runner" ot rope larger than the joint gap, the with light iron packing, will leave the cavity open around the joint, such that the runner clamp at the top of the joint leaves a open pour point to fill the cavity, such that the lead will fill the cavity and then harden to be a caulkable ring.

Indoor, above grade cast iron bell and spigot pipe.

RicchH

is there a cite that I could source that to?

cr

Yarning iron, for packing oakum in joints to be leaded

http://books.google.com/books?id=2MmD063OfdwC&pg=PA398&lpg=PA398&dq=%22cast+iron+pipe+joint%22&source=web&ots=9CynwhRdZX&sig=tFiaY3kUCHFi54XawOmTLHY_PrM

Spec section from construction specifications:

http://www.okc.gov/pw/std-specs/Section%20900.pdf

960.02 - CAST IRON PIPE JOINT MATERIAL
A) Jute - Joint packing shall be of the best quality long fiber, clean, dry jute, either square braided or
hard twisted, or an approved substitute acceptable to the Engineer. Unless otherwise permitted by
the Engineer, all braided or hard twisted joint packing shall be not less than one-half (1/2) inch in
size.
B) Lead - Lead used for filling bell and spigot joints shall be of the best quality soft pig lead, suitable for
caulking and securing tight permanent joints and shall conform to the requirements of Federal

Specification QQ-L-156, "Lead; Caulking".

And, pages 65, 66, and 67 at http://books.google.com/books?id=bB9myZ6sqt8C&pg=PA67&lpg=PA67&dq=%22cast+iron+pipe+joint%22&source=web&ots=7fdFRlVlVu&sig=B0Z7ef-yM79eU-BfSrND3cDiFIQ#PPA67,M1

Google is woderfull. "cast iron pipe joint" (in the quotes) brought up about 20 ref's, "lead joints" would probably bring hundreds.

RichH

Caulking is plastic deformation of weld or base metal surfaces by some mechanical means to obscure or seal off any discontuinities. Usually done on low strength steels. From AWs D 1.1.