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
Compact Floating Design
Ball is supported by the downstream seat, making the design compact, lightweight, and cost-effective for smaller sizes and lower pressure classes.
Low Operating Torque
Precision-machined ball and low-friction seat materials result in low breakaway and running torque, enabling smaller actuators and manual operation.
Bubble-Tight Shutoff
PTFE/RPTFE soft seats achieve zero visible leakage per API 598 / EN 12266-1 Class A, even at low differential pressure.
Anti-Blowout Stem
Stem is mechanically retained by the body and cannot be ejected under pressure, meeting API 608 safety requirements.
Locking Device
Lever handle includes a locking plate or padlock provision for security tagging in isolation applications.
Fire-Safe Option
Fire-safe seat design with secondary metal/graphite seal available per API 607 for hazardous service.