Oliver DBB
Severe Service Metal Seated Ball Valves Taking Sealing to its Practical Limits Severe Service Technology, Inc. SST.
CORSBYSEK.pdf
WORKSHOP PRACTICE. A valve is a device that regulates the flow of a fluid (gases, fluidized solid, slurries, or liquids) by opening, closing, or partially.
FlowServe Refinery Shut Off Valves
