I would like to know if there is a way to calculate the Cv of two series mounted valves ( Globe ) in combination. They are the same type of valve.

Some information on large diameter cryogenic ESDV valves.1) what is the maximum available size for ball ESDVs,2) as an alternate are we allowed to use butterfly valves for cryogenic ESD services

When a piping line specification requires 6mm of corrosion allowance, do you consider necessary to indicate this requirement also for valve description?

Need calculate the Cv value of some Changeover or Diverter valve ( 1 Inlet 2 Outlets ) but my Europe supplier only gave me The "K" or " Zeta " values:

The offer for 2 set of samson valve type 3244-2 with electro hydrulic actuator type 3274-21 with a TROVIS controler type 6493.

A pnuematic actuator become sil rated. Can anybody advise is there a standard specification the product must perform .

Crane TP 410 that lists the L/D values for various types of valves.However by 1976 these values changed. But I've never seen any justification or explanation of the changes.

Trying to find a solenoid valve capable of sealing off liquid flow even if a large differential pressure exists between the outlet and the inlet or vice versa.