Double Block & Bleed
ItalBest Valve manufactures the most complete line of high quality double ball DBB (Double Block & Bleed valves). It is the best choice for safety and when is necessary to optimize space having two spheres in a small space. ItalBest Valve designs double ball DBB valves with adjustable flow pressure drain plugs in the middle. Our double ball DBB valve can perform the tasks of 3 separate valves (2 isolated valves and 1 drain valve) which, apart from being extremely space saving, can also save on weight and time due to installation and maintenance practicability, requiring much less work and all 3 valves being located in one body. Double Block & Bleed Valves operate on the principle that isolation can be achieved from both the upstream and downstream process flow / pressures.
Our Double Block & Bleed valves are available in an extensive range of designs, materials, sizes and pressure classes and are in full conformance with ASME, API and NACE specifications. All Double Block & Bleed Valves are designed in accordance with ASME B16.34 and where applicable with API 6D or BS EN ISO 17292. Different options for specific service conditions or customer’s needs are available: fully welded body or split body, etc
Floating
- Diameters: from 1/4 to 6”
- Class rating: from 150 to 2500
- Temperature range: -196 C° to 500 C°
Trunnion
- Diameters: 1/4 to 60”
- Class rating: from 150 to 2500
- Temperature range: -196 C° to 500 C°