Bray’s Series 19/19L segmented ball valves combine the shearing action typically found in knife gate valves with the control characteristics and sealing performance found in ball valve. Series 19 and Series 19L segmented ball valves feature a characterized segment with wide rangeability and high flow capacity with exceptional rotary control valve performance. Designed for throttling applications, Series 19/19L segmented ball valves also deliver excellent sealing performance in on-off applications, achieving Class VI in resilient and Class IV sealing performance in metal seated trims. Size range: DN 25 to 400. Temperature range: -46ºC to +260ºC.
Designed in accordance with ASME B16.34 standards, Series 19/19L segmented ball valves feature a spring-assisted, pressure-balanced seat design. The springs maintains constant pressure against the segment, ensuring effective sealing at low differential pressures, while the pressure-balanced design also ensures effective sealing at full differential pressure with smooth, low torque operation. The Series 19/19L seat design also directs flow away from the sealing area, enhancing durability. The one-piece cast body, reduces weight and increases rigidity while eliminating potential leak paths.
Bray's Series 19L segmented Ball Valve further enhances the standard Series 19 for highly abrasive slurry and severe service applications. Bray's proprietary advanced coating technology is applied to the internal surfaces of the valve body and segment to provide increased hardness and resistance to erosion. This advanced coating technology provides higher bond strength over other commonly used coating technologies throughout the industry. A field-replaceable erosion-resistant liner is installed in the downstream bore to protect the body from impingement by high-velocity abrasive flow media.
With multiple coatings and trims available in a variety of configurations for different service conditions, Series 19 & 19L segmented valves are ideal for use in a wide variety of industries and applications where the increased durability and reliability extends service intervals, minimizes downtime and improves your bottom line.
Series 19:
A. One-piece body: provides a rigid, robust shell capable of withstanding pipe loading, and eliminates potential leak paths.
B. Splined stem to segment connection: provides efficient torque transmission and precise control, with low hysteresis and reduced deadband.
C. Self-centering ball segment: perfectly oriented, specially designed shaft pin facilitates self-alignment of the ball segment, while simplifying assembly and disassembly during routine maintenance.
D. Coatings: high-performance coatings on internal components ensure long life and corrosion resistance.
E. Energized seat: seat spring provides constant force on the seat to seal against the segment at low differential pressures. At higher differential pressures, optimized sealing diameters ensure lower seat torques.
F. Protected sealing area: seats are designed to direct media flow away from the sealing area.
G. Blowout proof stem: retaining ring fits between machined stem groove and gland retainer step.
H. Easy maintenance: the seat is replaceable without removing the segment and shaft.
Series 19L:
A. Erosion resistant downstream liners/seats: reverse flow direction prevents body wall erosion due to high velocities at low openings.
B. Severe service coatings: customized ultra-hard coatings provide application-specific corrosion and erosion resistance for valve internals.
C. Bearing seals: protects metal bearings from ingress of media.
D. Pressure balanced seat design: seats capable of sealing under full differential pressures with low torques and smooth operation.
E. Easy maintenance: flanged retainer with uninterrupted gasket surface provides easy access for seat and liner replacement.
F. Trim options: multiple options available for optimized performance in various levels of erosive services.
Segmented ball valve − Series 19/19L
Bray’s Series 19/19L segmented ball valves combine the shearing action typically found in knife gate valves with the control characteristics and sealing performance found in ball valve. Series 19 and Series 19L segmented ball valves feature a characterized segment with wide rangeability and high flow capacity with exceptional rotary control valve performance. Designed for throttling applications, Series 19/19L segmented ball valves also deliver excellent sealing performance in on-off applications, achieving Class VI in resilient and Class IV sealing performance in metal seated trims. Size range: DN 25 to 400. Temperature range: -46ºC to +260ºC.
Designed in accordance with ASME B16.34 standards, Series 19/19L segmented ball valves feature a spring-assisted, pressure-balanced seat design. The springs maintains constant pressure against the segment, ensuring effective sealing at low differential pressures, while the pressure-balanced design also ensures effective sealing at full differential pressure with smooth, low torque operation. The Series 19/19L seat design also directs flow away from the sealing area, enhancing durability. The one-piece cast body, reduces weight and increases rigidity while eliminating potential leak paths.
Bray's Series 19L segmented Ball Valve further enhances the standard Series 19 for highly abrasive slurry and severe service applications. Bray's proprietary advanced coating technology is applied to the internal surfaces of the valve body and segment to provide increased hardness and resistance to erosion. This advanced coating technology provides higher bond strength over other commonly used coating technologies throughout the industry. A field-replaceable erosion-resistant liner is installed in the downstream bore to protect the body from impingement by high-velocity abrasive flow media.
With multiple coatings and trims available in a variety of configurations for different service conditions, Series 19 & 19L segmented valves are ideal for use in a wide variety of industries and applications where the increased durability and reliability extends service intervals, minimizes downtime and improves your bottom line.
Series 19:
A. One-piece body: provides a rigid, robust shell capable of withstanding pipe loading, and eliminates potential leak paths.
B. Splined stem to segment connection: provides efficient torque transmission and precise control, with low hysteresis and reduced deadband.
C. Self-centering ball segment: perfectly oriented, specially designed shaft pin facilitates self-alignment of the ball segment, while simplifying assembly and disassembly during routine maintenance.
D. Coatings: high-performance coatings on internal components ensure long life and corrosion resistance.
E. Energized seat: seat spring provides constant force on the seat to seal against the segment at low differential pressures. At higher differential pressures, optimized sealing diameters ensure lower seat torques.
F. Protected sealing area: seats are designed to direct media flow away from the sealing area.
G. Blowout proof stem: retaining ring fits between machined stem groove and gland retainer step.
H. Easy maintenance: the seat is replaceable without removing the segment and shaft.
Series 19L:
A. Erosion resistant downstream liners/seats: reverse flow direction prevents body wall erosion due to high velocities at low openings.
B. Severe service coatings: customized ultra-hard coatings provide application-specific corrosion and erosion resistance for valve internals.
C. Bearing seals: protects metal bearings from ingress of media.
D. Pressure balanced seat design: seats capable of sealing under full differential pressures with low torques and smooth operation.
E. Easy maintenance: flanged retainer with uninterrupted gasket surface provides easy access for seat and liner replacement.
F. Trim options: multiple options available for optimized performance in various levels of erosive services.
