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Blind and spacer
- alexander
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15 years 2 months ago - 15 years 2 months ago #7487 by alexander
Blind and spacer was created by alexander
can anyone explain why most of blind and spacer are designed on the upstream side..Tanx
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15 years 2 months ago - 15 years 2 months ago #4374 by Jop
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Replied by Jop on topic Re: Blind and spacer
"can anyone explain why most of (the) blind and spacer are designed on the upstream side?
I assume you mean upsteam side of a valve
The valve is there to isolate the commodity/pressure/temperate so you can install the Blind.
I assume you mean upsteam side of a valve
The valve is there to isolate the commodity/pressure/temperate so you can install the Blind.
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- alexander
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15 years 2 months ago - 15 years 2 months ago #4375 by alexander
Replied by alexander on topic Re: Blind and spacer
Yes, that's why i meant, but how can the valve isolate the line and install spacer/blind if it is designed on the inlet side or before the valve (with regards to flow direction).
Thank you very for your prompt reply.
Thank you very for your prompt reply.
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15 years 2 months ago - 15 years 2 months ago #4376 by Jop
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Replied by Jop on topic Re: Blind and spacer
Okay! Let's start over.
Please define the situation where this is happening so I can give a more directed answer.
Please define the situation where this is happening so I can give a more directed answer.
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15 years 2 months ago - 15 years 2 months ago #4377 by alexander
Replied by alexander on topic Re: Blind and spacer
Sir this situation occurrence are along bypass lines of control valves and after control valves also at block valves.
thank you very much. I really appreciate your effort.
Best regards,
Alexander
thank you very much. I really appreciate your effort.
Best regards,
Alexander
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15 years 2 months ago - 15 years 2 months ago #4378 by Jop
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Replied by Jop on topic Re: Blind and spacer
I guess I was not clear when I asked you to "define the situation."
So let us try again.
- What is the commodity (what is in the line)?
- What is the Pressure?
- What is the Temperature?
- What type of equipment is this line coming from?
- What is the elevation of this piece of equipment?
- What is the line size?
- What is the Flange rating?
- What is the material?
- What is the elevation of the Control Valve station?
- What type of equipment (if any) does this line go to?
- What is the elevation of the end point of this line/equipment?
- Can this line "Free Drain" from the Control valve?
- Are there any trapped low points between the Control Valve station and the end of the line?
So let us try again.
- What is the commodity (what is in the line)?
- What is the Pressure?
- What is the Temperature?
- What type of equipment is this line coming from?
- What is the elevation of this piece of equipment?
- What is the line size?
- What is the Flange rating?
- What is the material?
- What is the elevation of the Control Valve station?
- What type of equipment (if any) does this line go to?
- What is the elevation of the end point of this line/equipment?
- Can this line "Free Drain" from the Control valve?
- Are there any trapped low points between the Control Valve station and the end of the line?
Do it once and Do it Right
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