وصف
TECHNICAL DATA SHEET
Free Forged Throttling Valve / Choke Valve
Project / Equipment: High Pressure Throttling Valve
- BASIC VALVE INFORMATION
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Item
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مواصفة
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نوع الصمام
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Needle / Choke Type Throttling Valve (Globe pattern or Angle pattern)
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End Connection
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Flanged, Raised Face (RF)
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Body Manufacturing Process
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Open Die Forging (Free Forging)
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الحجم الاسمي
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NPS 12 × 10 (DN300 × DN250)
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Port Reduction
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Inlet 12″, Internal seat bore reduced to 10″
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Pressure Class
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Class 600 (ASME B16.5)
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مادة الجسم
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A105 (Carbon Steel)
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Service Medium
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Water / Oil / Gas / Steam (as per process)
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- APPLICABLE CODES & STANDARDS
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معيار
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وصف
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API 6A
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Specification for Wellhead and Christmas Tree Equipment (if applicable to choke design)
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API 6D
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Specification for Pipeline and Piping Valves
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ASME B16.34
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Valve Flange, Threaded, and Welding End Dimensions
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ASME B16.5
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Pipe Flanges and Flanged Fittings (Class 600 RF)
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ASME B16.10
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Face-to-Face and End-to-End Dimensions of Valves
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API 598 / ISO 5208
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Valve Inspection and Testing
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ASTM A105 / ASME SA-105
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Forgings, Carbon Steel, for Piping Components
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- MATERIALS OF CONSTRUCTION
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عنصر
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مادة
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Standard / Remarks
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جسم
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A105
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Open die forged, normalized
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Bonnet / Cover
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A105
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Forged, bolted bonnet design
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Disc / Plug / Needle
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A105 + Hardfacing
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Stellite 6 / 13Cr – erosion resistant
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Seat Ring
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A105 + Hardfacing
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Integral or renewable, hardfaced sealing surface
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ينبع
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A182 F6a (13Cr)
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Stainless steel, anti-galling
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Packing
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Flexible Graphite
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With Inconel wire reinforcement
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Gasket
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Spiral Wound
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304SS + Graphite
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Stud Bolts
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A193 B7
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High strength alloy steel
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Nuts
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A194 2H
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Carbon steel
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- DESIGN & PERFORMANCE CHARACTERISTICS
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المعلمة
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مواصفة
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Pressure Class
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Class 600
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Max. Allowable Working Pressure
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Per ASME B16.34, A105 @ 38°C: ~ 1480 psi (102 bar)
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Design Temperature Range
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-29°C to +425°C (-20°F to +800°F)
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Flow Characteristic
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Linear / Equal Percentage
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Seat Leakage Rate
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Class IV or Class V per FCI 70-2 / IEC 60534
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عملية
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Handwheel / Gearbox / Actuator ready
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Flow Direction
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Flow over seat (preferred) or Flow under seat
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- DIMENSIONS & CONNECTIONS
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Item
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Dimension (inch / mm)
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Inlet Flange
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12″ Class 600 RF per ASME B16.5
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Outlet Flange
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12″ Class 600 RF per ASME B16.5
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Face-to-Face Length
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Per API 6D / ASME B16.10 or manufacturer standard
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Reduced Bore Diameter
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Corresponding to NPS 10 (approx. 10″ seat bore)
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Handwheel Diameter
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As per manufacturer
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Approx. Weight
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As per manufacturer
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- SPECIAL REQUIREMENTS & REMARKS
- Free Forging Process
Valve body shall be manufactured from open die forging using ingot or large billet.
Machining from bar stock or casting is NOT acceptable.
- Reduced Port Design
Flange size: NPS 12
Internal seat bore and throttling area: Equivalent to NPS 10
Designed for precise pressure and flow control.
- Hardfacing & Wear Resistance
Seat and disc contact surfaces shall be hardfaced with Stellite 6 or equivalent.
Minimum hardness after welding: 350–450 HB.
- Nondestructive Examination (NDE)
Body forging to be ultrasonically tested per ASTM A388.
Critical areas (seat, bore, welds) to be MT or PT examined.
- Compliance
Valve design, materials, and testing to fully comply with API 6A (if choke valve) and API 6D (pipeline valve) requirements.
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.