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Saslanti, thanks for reply; The reason why I did not select other high strength material (for example A694) is that this kind of material is not listed in ASMEB16.5 and so I do not have full range temperature - pressure rating, this is the reason that I have to select A105.

I have a question: Have you had a situation like: to have a thicker wall thickness in flange ending? for example, consider the 16" flange with ID equal to 16" SCH 40 piping , but need a thicker wall thickness in flange side. the problem is coming that I have pipeline pipe which is higher grade...

Dear Andy, Your answer is correct but where I can find the refrence for this in codes or standards? Regards,

Dear friends, Do any body knows about type of seat in Trim 16 is renewable or integral type, in my opinion the both type are possible but the our Client is telling in trim 16 valves we have only integral type and he is refering to Table 8 of API 600 which is in it for Seat Surface Typical...

Hello, In our piping spec for refinery is written "As a minimum requirement, piping shall be designed in accordance with ASME B31.3, Process Piping. Steam, boiler feed-water and blow down piping, associated with steam generating equipment shall be designed in accordance with ASME B31.1" I...

Hello, In our piping spec for refinery is written "As a minimum requirement, piping shall be designed in accordance with ASME B31.3, Process Piping. Steam, boiler feed-water and blow down piping, associated with steam generating equipment shall be designed in accordance with ASME B31.1" I...

Hi All, Could somebody help me to find out which Code or Standard is specifying the valve percent to be hydrotested. Our valve supplier is replied as per below: Type Qty Rating Percentage Gate 840 150, 300, 600 20% persize/per rating Globe 90...

Many thanks, every body for your valuable reply. Regards, Pavis1968

Hi, can you please help me to understand what is thr meaning of "Impact Type Handwheel" for gate valves. Regards, Parviz

Btrueblood, thanks from your precise answer, that's right we don't have A193 L7M, it shall B7M, and also it is high temperature bolt material, in ASTM only in supplementary condition it is mentioned that if it is intended to be used in Low Temprature it should be charpy tested with referenced to...

Does anybody know the existance of A193 L7M, and the replacement of that instead of A320 L7M, I checked the ASTM A193 but such garde it was not mentioned on that. My reference is thread378-176060 Regards,

dicksewerrat, thanks from your reply, For your information: The HDPE is existing line and it is old spec and we don't know which type of HDPE is that. HPPE is our project PE pipe spec. We don't have any flange in tie-in point for existing line. So we have to connect these two pipes by joint...

Hi everybody, I wonder if somebody help me to find out: "Is it possible to connect the 12" PN 16 HDPE PE pipe to 12" HPPE PE 100 pipe?" Is it safe? Which consideration shall be seen in advance? The HDPE pipe is exsiting and HPPE will be new lines. As I know connection between various type of...

Hi everybody, I wonder if somebody help me to find out: "Is it possible to connect the 12" PN 16 HDPE PE pipe to 12" HPPE PE 100 pipe?" Is it safe? Which consideration shall be seen in advance? The HDPE pipe is exsiting and HPPE will be new lines. As I know connection between various type of...

First, many thanks from every body that spent time and make me a reply. I am agree with UNSR60001. I think the sleeved plug valve is better selection than lubricated plug valves. Although the PTFE will start breaking up above 204° C as UNSR60001 mentioned it but I can fix the operating...

Hi, I wonder if someone could help me to find out what is a difference between lubricated plug valve and sleeved plug valve. We are going to buy plug valve for sulphur service, the maximum operating temprature of sulphur line is 210 DEG C and operating presure is 6 bar. In my opinion the...