API 602/ASME B16.34 Pressure Seal Y-Type Globe Valve – High-Temperature & High-Pressure Reliability
Key Structural Features
✅ Pressure Seal Bonnet:
Self-Energizing Seal: ASME B16.34 design ensures zero leakage under extreme pressure (Class 1500~4500) and temperatures up to +593°C (steam, thermal oil).
Forged Steel Body (ASTM A105/A182 F22/F91): High-strength carbon/alloy steel for refinery, power plant, and hydrocarbon service.
✅ Metal-to-Metal Seating:
Bubble-Tight Shutoff: Precision-machined disc and seat for ISO 5208 leakage class VI compliance.
Fire-Safe Option: API 607-certified graphite seals for emergency shutdowns.
✅ Low Maintenance & High Durability:
Blowout-Proof Stem: Anti-static design with API 624 fugitive emission packing.
Welded Bonnet: Eliminates gasket replacement needs in high-pressure systems.
✅ Versatile Configurations:
End Connections: Flanged (RF/RTJ), butt weld (ASME B16.25), or socket weld (ASME B16.11).
Actuation: Manual handwheel, gearbox, or automated (electric/pneumatic).