Pressure Control Valves 5K and 10K

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Posts: 2 Posted Today at 08:34 PMReply with quote #1 All,

Looking for a answer backed up with (API) rules as well as experiences for the following:

We will be using the following stacks:
29-1/2" 500 PSI
21-1/4" 2K
13-5/8" 10K

The last two stacks will have drilling spools installed, both with 4-1/16" outlets

The 21-1/4" spool has 4-1/16" 5K outlets
The 13-5/8" spool has 4-1/16" 10K outlets

The pressure control spools will be connected to these outlets. We have both 5K and 10K sets. Also we have the crossover DSA to connect the 10K valves to the 5K outlets of the 21-1/4" spool.

Now the question:

Can we use 10K valves connected to the 21-1/4" stack with a DSA 4-1/16" 5K x 10K?

I have heard several reasons why not to do it as well as reasons to do it and why it would not be a unsafer situation.

I appreciate your comments and experiences.

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