Saturday, March 19, 2011

Re: [MW:10439] Which is better material for Seat / Control Valves / Sour Service

In sore gas condition The Steelite 6 wont be of much use , 316L would show better resistace than st6 in this place

 
On Wed, Mar 16, 2011 at 10:09 PM, sachin sankhe <sachin.sankhe@rediffmail.com> wrote:
Hi,

Stelliting is done for hardness purpose to avoid wear due to friction durings its operational life

Hence stelliting cannot be replaced with SS316

Regards
Sachin.Sankhe

On Wed, 16 Mar 2011 08:56:30 +0530 Vino Varghese <vinopvarghese@gmail.com> wrote

>
Dear Experts,
 
The Data sheet for Control Valve calls for Seat Material of Trim as Stellite 6 + ENP and Supplier is offering SS 316.
Whis is better - Is it Stellite 6 + ENP or SS 316?
 
Info: Service to be used is Sour Service.
Temperature : 60 Degree Centrigrade
Inlet Presure: Max. 0.5 bar g
Otlet Presure: Max. 0.3 bar g
 
Appreciate to see response ASAP.
 
Regards
VPV

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