ITAG Valves Engineering GmbH
Kelly - Model Type BTG-DB -Dual Ball Valve
ITAG kelly valves type BTG-DB are equipped with two closure members (balls) which can be operated independently of each other.
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They are designed in accordance with API Specification 7-1 Service Class 2 (surface and downhole service) and are manufactured and tested under the conditions of an ISO 9001 QM system.
ITAG kelly valves type BTG-DB are optimized for remotely operated topdrive service, but can also be used as manually operated kelly valves.
Kelly valves type BTG-DB are also available with ABS design assessment certificate (ABS CDS Guide) and DNV type approval certificate (DNV-OS-E101).
- one-piece body
- designed as per API specification 7-1 Service Class 2
- two closure members (balls)
- mounting direction „pin up“ or „pin down“
- pure metal seated with special hard-facing on balls and seat rings
- low torque design allows smooth opening under differential pressure and closing under high flow rates
- bi-directional sealing under full working pressure from below and above
- improved load capacity verfied by finite element analysis
- H2 S trim
- H2 S service
- gas-tight sealing
- locking device
- connection break-in