Insitu Seat test of Top entry ball Valve 2

• May 28, 2021

• #2

LittleInch

Petroleum

Mar 27, 2013

22,949

GB

Where is the plug? A drawing would help.

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• May 28, 2021

• Thread starter
• #3

Nilesh Rajput

Mechanical

May 28, 2021

2

KZ

here I attached GA and see POS 52 the drain plug.

 

 https://files.engineering.com/getfile.aspx?folder=bf2e7b3a-7b7f-4096-8f4f-b9fab208c580&file=8._B4-3100-ESV-005_GA_DRAWING.pdf

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• May 28, 2021

1
• #4

LittleInch

Petroleum

Mar 27, 2013

22,949

GB

It's not really clear what void that drain plug has access to. So you can't really see if when the valve is closed it will be able to see the fluid inside the valve.

You could test each seat from outside to in, but not really inside to out.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

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• May 30, 2021

1
• #5

Nick_Gray_88

Mechanical

Mar 1, 2021

46

GB

That’s not the best design on many fronts...

Looks like single pistons effect seats so you wouldn’t be able to pressurise the cavity and the seat seal.

ESV? Emergency shut-down valve? My recollection is that these are 1 SPE and 1 DPE seat? Seats look the same to me??

You’ve also got a cavity relief hole drilled in the ball? On a clad ball? That’s going to be tricky at best to achieve...

 

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