Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Stainless Steel (ASTM A351 Gr. CF8/CF8M) |
| Stem / Spindle | SS 304 / SS 316 |
| Seat / Trim | PTFE / RPTFE / Integral |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | ASME B16.34 / API 603 / API 6D |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | Class 150 to Class 600 / PN16 / PN40 |
Features & Benefits
V-Notch Shearing Action
V-notch ball profile provides shearing action that cuts through fibrous media, slurry, and stringy materials that would jam conventional globe or butterfly control valves -- essential for pulp & paper and wastewater applications.
High Rangeability
Segmented ball provides 100:1 rangeability (standard) and up to 300:1 with characterised V-notch profile, enabling precise control from maximum flow down to very low turndown ratios.
High Capacity
Full-port flow path when fully open provides significantly higher CV than equivalent-size globe valves, reducing valve size and installation cost for high-flow applications.
Spring-Energized Seat
Spring-energized PTFE/RPTFE or metal seat ring maintains tight shutoff despite seat wear and thermal cycling, extending seat life in throttling service.
Double-Bearing Stem Support
Upper and lower stem bearings prevent stem deflection and ball wobble under high differential pressure, ensuring precise position control and long packing life.
Smart Digital Positioner
HART / Fieldbus / Profibus-compatible smart positioner provides auto-tuning, adaptive gain, valve signature diagnostics, and predictive maintenance alerts.