Gang Operated Valve

Not enough information. What do you mean by "gang operated valve assembly".

Information on the equipment and the application would help.

John

The Crips/Bloods/Jets/Sharks make up the operating staff.

If they are ball valve they can, but not practical to do other than when all else won't work, is to modify the valves so that the ball can be operated from both the top and the bottom. Place appropriate rods from the top of each to the bottom of the valve above it with the balls in the same position all valves are then changed in unison by the handle on the top valve.

Another way for ball valve: place each valve next to another. Mechanically link the handles together in the same operating position. Move the mechanical link to adjust the valves in unison.

Most practical way: put identical pneumatic operators on each valve. With pipe fittings, operate each operator supply off the same air feed. Since the operator feeds are the same supply they will operate in unison with little variation. Suitable pneumatic control circuitry, what used to be called a pneumatic computer, can be installed should any variances in operation between valves not be acceptable.

Old style, old trick

Good Luck, Old Salt

>how gang operated valve assembly works

It's all in the linkage