Rising Stem Ball Valve – RSBV

Name: Rising Stem Ball Valve – RSBV
Brand: Flowserve
SKU: flowserve-627

رقم القطعة: flowserve-627

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الوصف

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. Features and benefits: - 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 - 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

المواصفات

Brand line	Valbart
Standards	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; Manual gear