Description
F91 Parallel Slide Gate Valve
- Valve Type: Parallel Slide Gate Valve (Double Disc Non-Wedging)
- Design Standard: API 600 / ASME B16.34
- Size: 14 Inch (NPS 14)
- Pressure Class: ASME Class 1500 (1500 LB)
- Body & Bonnet Material: ASTM A182 F91 (9Cr-1Mo-V Forged Steel)
- Bonnet Type: Pressure Seal (Self-Sealing) Bonnet
- End Connection: Butt Weld (BW) per ASME B16.25
- Seating Surfaces:
- Seat Rings: Full Stellite 6 Overlay (Min. 3mm)
- Gate Plates: Stellite 6 Hardfaced Contact Surfaces
Stem Material: ASTM A182 F6a (Surface Nitrided HRC≥40)
Stem Type: Rising Stem (OS&Y) with Anti-Blowout Design
Packing: Flexible Graphite Rings (Fire-Safe per API 607)
Gasket: Pressure Seal Ring (Inconel 600 RTJ Type)
Sealing Mechanism:
- Spring-Loaded Parallel Discs for Thermal Expansion Compensation
- Metal-to-Metal Seal (Stellite-on-Stellite)
Operation: Hydraulic/Electric Actuator Ready (ISO 5211 Pad)
Face-to-Face: ASME B16.10 Class 1500
Testing & Certification:
- API 598: Shell Test @ 3750 psi | Seat Test Class IV
- PED 2014/68/EU | ISO 10434 Compliant
Leakage Class: API 598 Class VI (Gas Test)
Temperature Range: -29°C to 593°C (-20°F to 1100°F)
Application:
- Critical Service: Main Steam Isolation, Boiler Outlet Lines
- System Pressure: ≤ 2500 psig @ 565°C
- Plant Type: Supercritical (SC) & Ultra-Supercritical (USC) Power Units
GUATANTEE
SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.
