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. الميزات الرئيسية

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

ضمان:

تلتزم شركة سافي فالفز بتقديم منتجات عالية الجودة وخدمة ما بعد البيع مريحة. نضمن لصماماتنا عمر خدمة لا يقل عن ١٢ شهرًا، نوفر خلالها جميع قطع الغيار اللازمة وتعليمات الصيانة المفصلة مجانًا. خلال فترة الضمان، في حال حدوث أي ضرر غير بشري، نستبدل المكونات مجانًا ونقدم دعمًا فنيًا احترافيًا. بعد انتهاء الضمان، يدفع العميل فقط تكلفة قطع الغيار، مع الاستفادة من خدمات الصيانة المخفضة. هدفنا هو مساعدة عملائنا على خفض تكاليف التشغيل وتحسين كفاءة الإنتاج من خلال جودة موثوقة ودعم شامل لما بعد البيع. سواءً للاستفسارات الفنية أو احتياجات الصيانة، سيستجيب فريق خبرائنا على الفور لضمان الحفاظ على الأداء الأمثل لنظام صماماتك في جميع الأوقات.