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 |
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
Extended Bonnet Design
Positions gland packing in ambient zone above LNG frost line, preventing ice formation and packing seizure.
Low-Temperature Charpy Testing
Body and trim materials impact-tested at -196°C to verify ductility and prevent brittle fracture.
Helium Cryogenic Leak Test
Every valve tested for seat and body leakage at operating temperature in a vacuum cryostat.
Full Bore Minimised Pressure Drop
Ball bore matches pipe ID for negligible flow restriction and reduced flashing in LNG lines.
Fire-Safe Certified
Secondary metal-to-metal seat contact maintains isolation during external fire per API 607.