General Description:
Honway’s Segment Ball Valve is primarily designed for flow control, and it can also be used for shut-off operation. The notched port on the segment ball contributes to strong shear stress to cut through media with fibers and particles. Consequently, this Segment Ball Valve is a good general control valve (equal percentage flow character) for most pulp and paper process applications, or similar flow contains fibers and particles.
Design Standard:
Basic Design: API 6D; DIN/EN
Face-Face / End-End dimension: ISA S75.04, IEC/DIN 534-3-2 (Flange); Factory Standard (Wafer)
Flange / Wafer Ends Dimension: ASME B 16.34, ISO 7005 (Other drilling on request)
Test: API 6D, BS 6755, API 607, API 6FA,EN12266
Design Feature:
Body:
a) Integral body design offers greater rigidity against fluctuating pipe loads.
b) Eliminates the leak path associated with two piece body designs.
c) Both wafer and flange connection are available.
Core:
a) Specially designed V-notch ball provides strong cutting stress and tight sealing.
b) Hard chromium, nitriding, and HCOF treatments are all available for the ball surface treatment, improving hardness, abrasion resistance, fatigue resistance, corrosion resistance and performance under high temperature.
c) Well ground notched ball surface ensures small operating torque and tight seal, especially for metal seated segment valve.
Seat:
a) For valve rated under class 150, retainer is casted on valve body to eliminate any possible space between seat ring and body for residue accumulation. Consequently, this ensures perfect seal。
b) Specialized spring design decreases valve torque while providing force for tight sealing.
c) Pressure energized seat design offers excellent sealing even at very low differential pressures.
Stem:
a) The stem is finely ground to match the actuator excellently, which prevents rocking motion and potential failure of the segmented valve.
Appliactions:
Pulp & Paper, Water Treatment, Food & Beverage, Fine Chemical, Power Plant, Steel Industry
