1″-4500LB-BW Close Die Forged Globe Valve

TECHNICAL DATA SHEET

1″-4500LB-BW Close Die Forged Globe Valve

1. Design Basis

1. Technical Specifications

III. Bill of Materials (Typical Options)

Note: Final material selection must conform to valve nameplate or manufacturer‘s material certificate.

1. Dimensions & Weight (Reference)

• Face‑to‑face per ASME B16.10 or manufacturer standard; Class 4500 typically uses shorter pattern.
• Butt weld bevel per ASME B16.25, prepared for Schedule 160 / XXS heavy wall pipe.
• Dimensions vary by bonnet type (pressure seal vs. bolted) and flow pattern (straight vs. Y‑pattern).

1. Key Features

1. Close Die Forged Construction – One‑piece forging eliminates casting defects, providing dense grain structure and high mechanical strength for high‑temperature, high‑pressure service.
2. Pressure Seal Bonnet (Optional) – Pressure self‑tightening seal via wedge‑type seal ring; sealing performance increases with internal pressure, ensuring reliable sealing under extreme conditions.
3. Metal‑to‑Metal Sealing – Disc and seat sealing surfaces overlaid with Stellite 6/12 (cobalt‑based alloy) via PTA welding, precision ground to approx. 40–45 HRC hardness, offering excellent wear, erosion, and galling resistance.
4. OS&Y Rising Stem Design – Clear stem position indication; stem nut located above yoke, isolated from media for easy lubrication and maintenance.
5. Non‑Rotating Stem – Stem moves linearly without rotation, eliminating spiral wear on sealing surfaces and reducing packing friction for extended service life.
6. Stem Surface Treatment – Nitriding or hard chrome plating enhances surface hardness, wear resistance, and corrosion resistance, minimising packing leakage.
7. Dual Stem Design (on select models) – Upper stem threads hardened and isolated from media; lower stem smooth and hardened; rotary‑to‑linear conversion reduces wear.
8. Independent Backseat – When fully open, stem sealing surface engages backseat, allowing packing replacement under pressure for enhanced safety.
9. Fully Guided Disc – Disc guided throughout travel for precise alignment and reliable sealing.
10. Low Emission Packing System – Flexible graphite packing with nickel/stainless steel wire reinforcement, offering self‑lubrication and low friction, meeting low emission requirements.

1. Close Die Forging Advantages

VII. Stellite Hardfacing

VIII. Applications

• Thermal power plants: boiler blowdown, drain, desuperheating water systems
• Petrochemical: high‑temperature, high‑pressure pipeline isolation
• Oil refineries: FCC, hydrocracking units under severe conditions
• Nuclear power plants: conventional island high‑pressure steam systems
• Chemical industry: high‑pressure reactor inlet/outlet lines
• High‑pressure gas transmission pipelines

1. Testing & Inspection

16. Pressure‑Temperature Ratings (ASME B16.34 Group 2 Materials, Reference)

Note: Values are for reference only. Refer to the latest ASME B16.34 for official ratings.

1. Ordering Information

Please provide the following when ordering:

1. Nominal size (1″)
2. Pressure class (Class 4500)
3. Body and trim material (e.g. A105, F22, F91, F316)
4. End connection type (butt weld BW; specify bevel standard)
5. Bonnet type (pressure seal / bolted)
6. Flow pattern (straight / Y‑pattern)
7. Media name and operating temperature / pressure
8. Sealing surface requirement (Stellite grade and overlay thickness)
9. Actuation type (handwheel, electric, pneumatic)
10. Additional requirements (low emission, radiographic inspection report, third‑party inspection, etc.)

XII. Remarks

• This technical data sheet applies to 1″-4500LB-BW Close Die Forged Globe Valve. Material and specific construction can be customised per user requirements.
• Class 4500 LB corresponds to approx. PN760 (76.0 MPa).
• Butt weld ends are prepared for Schedule 160 or XXS heavy wall pipe to ensure compatibility with high‑pressure systems.
• For a detailed data sheet with a specific material (e.g. F91, F316H) or a specific standard, please contact the manufacturer

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.