Valves.Com Pte Ltd, Severe Service Control Valves, General ... DBB Valves.pdf · Ball-Needle-BaIl...
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Valves.Com Pte Ltd, Severe Service Control Valves, General ... DBB Valves.pdf · Ball-Needle-BaIl or Ball-Bali-Bali Configuration. Double Block and Bleed Valves with floating balls