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CAMTECH Double Isolation Ball Valve is trunnion mounted ball valve where a single body houses two obturators where, each obturator has two individual seats for sealing. These valves are used to drain or vent trapped fluid between the two obturators. This design guarantees great reliability of the system together with remarkable space and weight saving. The greatest savings are to be seen in the reduction of leak to atmosphere because the potential leak points are minimized compared to the conventional design.
The valve internal profile is shaped to minimize turbulence and to avoid any potential obstacle for the passage of pigs. The valve body is designed to safely accommodate all predicable loads, including line pipe reactions.
These valves have all the standard features of trunnion mounted ball valve such as Built-in cavity relief mechanism, Antistatic, and intrinsic double block and bleed facility. Double piston effect feature can also be provided for this valve. The valves are bolted/welded at the body connection joint, with flanged/butt weld ends, in reduced and full bore designs. These valves are available in Forged construction as well as Cast construction.
Full Internal weld overlay or weld overlay on seat pocket area and body cavity can be provided with in-house cladding facility.
Metal seated valves seat and ball surface are either Tungsten carbide, Chromium carbide coated or Stellite Coated with in-house HVOF coating technology.
Fully welded ball valves are also offered eliminating the potential flange leak path and increased resistance to pipeline pressure and stress with in-house welding facility.
Seat construction with Single piston effect and double piston effect can be provided.
All valves are with fire safe design as per API 607 / API 6FA.