Rising Stem Ball Valve – RSBV
Product Brand
Rising Stem Ball Valves
About this product

Valbart RSBV Rising Stem Ball Valves are the oil and gas industry’s choice for applications requiring a mechanically energized metal or soft seat to prevent losses from process contamination or material leakage. The are ideal for frequent cycling.

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  • Extended service life and low maintenance costs due to unique helix coil stem design, which enables friction-free opening and closing
  • Improved product quality, efficiency and safety with tightness performance up to ANSI FCI-70-2 Class VI
  • Easy in-line inspection and maintenance enabled by top-entry design
  • Reduced corrosion due to heavy wall thickness in excess to ASME/ANSI B16.34
  • Improved personnel safety from blowout-proof stem that meets international standards of API 600 and 6D

Other Features:

  • Combination of a quarter-turn ball valve with a linear movement of non-rotating stem
  • Trunnion mounted design
  • Reduced or full bore
  • Single seat (no valve body cavity)
  • Unidirectional or bidirectional
  • Metal to metal seat with stellite welding overlay (soft seat insert on request)
  • Outside screw and yoke for adjusting of stem packing
  • Blowout proof stem
  • Suitable for very high frequent cycling operations (switching valves)
  • Tight shut-off by means of application of external mechanical force and not dependent on differential pressure
  • Proper selection of materials to avoid galling and high friction
  • Protected lower trunnion against solid particles intrusion
  • Clearance control to consider high/low temperature shrinkages
  • Self-cleaning closure member

API 6D/API 6FA-607/FCI 70-2
NACE MR0175/API 598

Size Range:

  • DN 25 to 600
  • NPS 1 to 24

Pressure Class Range:

  • PN 10 to 320
  • Class 150 to 2500

Seating Material: Metal or soft


(Standard & High temperature)

Electric-pneumatic-hydraulic actuators

(Standard & High Temperature)

Manual gear

Online Tools

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