WOG is an old acronym for Water Oil Gas. Others can provide some additional details.

Exhibit A, shall we say, is a 3 way actuated valve, with an ITT tag, I would say of European descent.

The ISA article dated August 1, 2003 entitled "Top technologies and Events" has a short paragraph on an innovation for pneumatics.

Nothing you asked for sounds much different from a regulator, otherwise known as a pressure reducing valve.

High Pressure Isostatic Pressing being used a method of manufacturing valve bodies especially in duplex construction?

For selection of ESD valve actuator supply, what are factors that decide whether ESD valve shall be hydraulic or pneumatic?

Setting up a maintenace regime for a HRSG can anybody assist by telling me the time between stripdowns required of pilot operated safety valves?

The reasons for using RB valves on a pipeline and on which type of pipelines? I know only as the cost and should not be used on a pigable pipeline.