Hellow Dears
The recommended alloy for sea water is a cupper alloys Acc. ASTM B763 and
specially C94800 (leaded nicket-tin bronze grade-B".
Regards
Eng. Ghorbal
- Original Message ----
From: blenrayaust <blenrayaust@yahoo.co.uk>
To: PipingDesign@yahoogroups.com
Sent: Tuesday, October 23, 2007 11:13:34 PM
Subject: [PipingDesign] Re: Xylon coated butterfly valves
I have used Xylan coating of stud bolts . I found that the Xylan
coating is extremely soft and easily damaged.
Thus my choice for seawater applications is SAF 2507 or aluminium
bronze for disc and shaft, fully vulcanised rubber lined ductile iron
bodied valve. If using SAF pipework I use a butt weld ended plug
valve such as MTS (Spain). It saves on the SAF flanges.
This is going into the Sydeny Desalination plant.
regards
Geoff
- In PipingDesign@ yahoogroups. com, "bharathi" <bharathi@.. .> wrote:
>
>
>
>
> One of our vendor has offered Xylon coated butterfly valves for
seawater application which is to be used in Desalination Plant.
>
> Till date I have not come across the usage of Xylon coated valves.
>
> Can anybody tell me the compatibility of the Xylon coated butterfly
valve with CI body with 2% Ni and with EPDM seat for the above
purpose.
>
>
>
> R.Bharathi.
>
>
>
>
>
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Received on Sun Oct 28 18:21:00 2007