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 Post subject: worthington SA waterpump packing
PostPosted: Sun Jan 12, 2025 5:27 pm 

Joined: Mon Aug 23, 2004 2:09 pm
Posts: 404
Location: Los Angeles
Looking for the rubber/cotton hotwater pump packing. The old garlock number was 262RH. Is anybody using this on a worthington hotwater pump or a suitable substitute?


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 Post subject: Re: worthington SA waterpump packing
PostPosted: Sun Jan 12, 2025 11:37 pm 

Joined: Wed Oct 31, 2007 10:40 am
Posts: 114
Location: Durango, Co
I don't know if there is an equivalent substitute for the original material or not. I made some out of PTFE for one. It worked well but something a little harder, like PEEK, might be a better option.

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 Post subject: Re: worthington SA waterpump packing
PostPosted: Mon Jan 13, 2025 5:27 pm 

Joined: Mon Aug 23, 2004 2:09 pm
Posts: 404
Location: Los Angeles
Original water pump end packing is available. It is Garlock 262RH. However the minimum order is 4,000 dollars. All I need is 6 foot of .625 x .625 packing, 300 dollars worth of this packing. Budget matters.


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 Post subject: Re: worthington SA waterpump packing
PostPosted: Mon Jan 13, 2025 8:40 pm 

Joined: Fri Aug 20, 2010 8:25 pm
Posts: 502
This 16mm x 16mm (0.629") carbonized PTFE should work;

"https://www.amazon.com/Packing-carbonized-Mechanical-Sealing-Custom/dp/B0C994GNM6?gQT=1&th=1"

$80 for 20 meters, your great great grandchildren (if applicable) should be able to keep your water pump leak free..


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 Post subject: Re: worthington SA waterpump packing
PostPosted: Tue Jan 14, 2025 3:34 am 

Joined: Wed Oct 25, 2006 12:12 pm
Posts: 206
Location: Bremerton, WA
I found a 1968 Garlock Comparison Chart. Garlock 262-RH is "Fine White Hydraulic Coil Rock Hard". According to Garlock, the following products are equivalent:

Anchor 340-RH
Belmont 25-C
Chesterton 92
Collins 17
John Crane 845
Greene, Tweed 2110
Hercules 350-RH
Johns Manville 182-RH
Raybestos Manhattan 412-C
Sepco 213

I hope this helps.

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 Post subject: Re: worthington SA waterpump packing
PostPosted: Tue Jan 14, 2025 4:45 pm 

Joined: Sun Aug 22, 2004 8:31 am
Posts: 1332
Location: South Carolina
Have you asked Garlok if there is a newer/current replacement for the product? That would be worth a try.

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 Post subject: Re: worthington SA waterpump packing
PostPosted: Thu Jan 16, 2025 12:25 am 

Joined: Fri Aug 20, 2010 8:25 pm
Posts: 502
Quote:
found a 1968 Garlock Comparison Chart. Garlock 262-RH is "Fine White Hydraulic Coil Rock Hard". According to Garlock, the following products are equivalent:

Anchor 340-RH
Belmont 25-C
Chesterton 92
Collins 17
John Crane 845
Greene, Tweed 2110
Hercules 350-RH
Johns Manville 182-RH
Raybestos Manhattan 412-C
Sepco 213

I hope this helps.


I would bet that any list of 'compatible" packing materials from 1968 still contained the "A" word, These feed water pumps where designed in the 1940's, long before PTFE was commonplace. I think a modern PTFE packing would outperform any "equivalent" packing listed in a 1960's specification.


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 Post subject: Re: worthington SA waterpump packing
PostPosted: Wed Jan 22, 2025 10:11 pm 

Joined: Mon Aug 23, 2004 2:09 pm
Posts: 404
Location: Los Angeles
this packing does not have the "A" in it never did. It is made of layers of fine woven cotton rubberized between 14 layers. The layup is a sheet layered to the thickness you order, 5/8 x 5/8 in my case. The layup is like a bed sheet layered, pressed and heated. The finished sheet is then slit into lengths. The Garlock catalogt still lists this product as 262RH and then references for locomotive feedwater pumps. The RH stands for rock hard. After slitting the pieces are backed again to harden the material. For these locomotives that do not put on the miles that they did in the steam days the RH is not needed as it does not wear out as it did in thy steam days. Because of the manufacturing process and low sales of the product Garlock only sells it by special order and so you would have to buy the production run at $4,000.


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 Post subject: Re: worthington SA waterpump packing
PostPosted: Wed Jan 22, 2025 10:21 pm 

Joined: Thu May 24, 2012 1:37 pm
Posts: 2472
Remember that unlike PTFE on piston-valve bushings and the like, the hot-water pump seals only ever see temperatures corresponding to saturation temperature at exhaust pressure in the heat exchanger -- 250 to 270 F at typical exhaust back pressure?

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 Post subject: Re: worthington SA waterpump packing
PostPosted: Thu Jan 23, 2025 7:47 pm 

Joined: Wed Oct 25, 2006 12:12 pm
Posts: 206
Location: Bremerton, WA
Has anyone reached out to these folks?
https://signalproducts.com/

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