Somas Instrument AB Ball Segment Valve
Somas Instrument AB Ball Segment Valve
SUPPLIER: Somas Instrument AB
AVAILABILITY: North America
The Somas ball segment valve offers high capacity and tight shut-off for steam, liquid, and mixed-phase applications.
Suitable for control as well as on-off applications, the Somas ball segment valve uses a one-piece ball segment and shaft design, resulting in backlash-free operation and accurate control. The segment moves out of the flow path, minimizing the risk of clogging and increasing flow capacity. The seat can be replaced from the outside without the need to disassemble the valve, making the valve service-friendly. Available in stainless steel body materials only, Somas ball segment valves are customized using a variety of trim materials, operators, and instrumentation. Operator and instrumentation are selected to ensure optimal field performance.
Design Parameters
- Cooling water
- Steam/condensate
- Process liquids and gases
- Slurries and fibre‑laden media
Frequently Asked Questions
Find quick answers to some of the most common questions
What is the main benefit of Somas’s one-piece ball segment and shaft?
Somas integrates the segment and shaft into a single solid piece, providing 100% backlash-free torque transmission for highly accurate throttling control.
How do Somas Ball Segment Valves handle paper pulp and fiber stock?
The segment’s sharp V-port edge shears through fibers during closure, while optional V-groove (KVM) trims prevent stock de-watering at low flow rates.
Why does a single-seat design perform better in slurry applications?
A single-seat design eliminates the body cavity where solids and fluids get trapped in standard ball valves, preventing thermal overpressure and media clogging.
Can Somas Ball Segment Valve seats be serviced in the field?
Yes. The seats can be replaced without removing the actuator, making the valve service friendly.
