ASTM A351 CF8 Segment Ball Valve, DN200, PN16, 8 IN, 150 LB

Product Name: ASTM A351 CF8 Segment Ball Valve
Body Material: ASTM A351 CF8
Size: DN200, 8 Inch
Pressure: PN16, Class 150 LB
End Connection: Wafer
Operation: Spring Return Pneumatic Actuator

The Segment Ball Valve is designed primarily for flow control but can also serve for shut-off operations. Its notched port creates strong shear stress, allowing it to efficiently cut through media containing fibers and particles. This makes the Segment Ball Valve ideal for general control applications, such as those in the pulp and paper industry or other processes involving media with fibers and particles.
A V-port ball valve, on the other hand, features either a 'V' shaped ball or seat, allowing for more controlled opening and closing of the orifice, resulting in a flow characteristic closer to linear. When the valve is in the closed position, the smaller end of the 'V' opens first, ensuring stable flow control at this stage. This design requires a more robust construction due to the higher velocities of fluids, which could potentially damage a standard valve.

Technical Specifications

» Size Range: NPS 1-32 Inch (DN25-DN800)
» Design Pressure: Class 150-600 LB (PN10-PN100)
» Body Materials: Cast Carbon Steel, Stainless Steel, Special Alloy (ASTM A216 WCB, WCC, A352 LCB, LCC, A351 CF8, CF8M, CF3, CF3M)
» Ball / Stem Materials: Stainless Steel, Special Alloy
» Seat Materials: Stainless Steel + STL, PCTFE, PEEK
» End Connections: Flanged RF, Wafer
» Operation: Handle, Worm Gear, Electric, Pneumatic
» Temperature Range: -29°C to 450°C
» Medium: Pulp & Paper, Water Treatment, Food Processing
» Standards
   Design and Manufacture: JB/T 13517-2018
   Face-to-Face Dimensions: ISA S75.04, IEC/DIN 534-3-2 (Flange)
   Flanged Connections: ASME B16.5, GB/T 9113, JB/T 79, HG 20592
   Test and Inspection: DIN 3230, ISO 5208, ANSI / FCI 70-2

Product Features

» Precise V-Notch Contouring for Excellent Control Characteristics in Various Flow Applications
» Easy-to-Change Seats for Low-Cost Valve Repairs
» Heavy Duty Construction with an Unrestricted Straight-Through Flow Path for High Capacity
» Superior Trunnion Bearing Technology Engineered for Excellent Abrasion Resistance
» Rugged Self-Adjusting Metal-Seated Option Ideal for High-Temperature Applications or Slurries
» Excellent Sealing Capacity (Class V Standard)
» Splined Connection Between Shaft and Ball Ensures Precise Control and Low Hysteresis
» Shearing Action Between Ball and Seal Promotes Smooth, Non-Clogging Operation, Ideal for Fiber or Slurry Applications
» Spring-Loaded Seat Maintains Constant Contact with the Ball, Enhancing Sealing Performance