History behind Sizes of Valve

U

Thread Starter

Utz

Hey!

The following is the requirement of our client:

Nominal body size 11/4, 21/2. 31/2, 5 or higher odd numbers shall not be used.

I would like to know why? I would like to know the history why they come up with this standardization.
 
>Interesting. Where from your client?


It's saudi aramco.... we are EPC based here in KSA and working with them.

Tnx..
 
I agree with RussB that the most likely reason is to minimize their spare parts inventory. However, unless compliance with the requirement puts you at a severe competitive disadvantage, just comply. Customers over there generally don't like to revise their specifications unless there is an advantage to the customer to do so or unless the requirement is impossible to fulfill.
 
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