وصف
TECHNICAL DATASHEET
14″ 125LB Ductile Iron Rising Stem Gate Valve
- General Specifications
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Item
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مواصفة
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نوع الصمام
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Rising Stem Gate Valve (OS&Y)
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الحجم الاسمي
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14 inches (14″) / DN350
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Pressure Class
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125 LB (Class 125)
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End Connection
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Flanged Ends
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Flange Standard
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ASME B16.1 Class 125 (Cast Iron Flange, RF/FF)
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Face-to-Face Dimension
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MSS SP-70 / ASME B16.10
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Design & Manufacture Standard
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MSS SP-70
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Test & Inspection Standard
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API 598
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- Design Parameters
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Item
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Unit/Standard
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المعلمة
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Max. Allowable Pressure
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psi
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200 psi @ Saturated Steam / 175 psi @ WOG (Non-Shock)
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Service Media
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–
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Water, Oil, Gas (WOG) or Steam (depending on conditions)
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Operating Temperature
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°C / °F
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-29°C to 220°C (-20°F to 430°F)
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عملية
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–
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Handwheel / Gearbox (Recommended for this size)
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- Material of Construction (M.O.C.)
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Part Name
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Material Required
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Standard / Grade (Ref.)
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1. Body
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Ductile Iron (DI)
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ASTM A536 (60-40-18) or ASTM A395
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2. Bonnet
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Ductile Iron (DI)
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ASTM A536
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3. Wedge (Gate)
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Ductile Iron (DI) with Bronze seat face
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ASTM A536, Bronze overlay/inlay on seat faces
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4. Seat Ring (Seat Face)
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Bronze
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ASTM B62 (C83600) or ASTM B61
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5. Stem
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Stainless Steel
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ASTM A276 Type 410 / 304 / 316
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6. Stem Nut
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Bronze / Aluminum Bronze
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High-strength wear-resistant alloy
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7. Packing
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Flexible Graphite / PTFE
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–
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8. Gasket
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Non-asbestos fiber / Graphite
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–
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9. Bolts/Nuts
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Carbon Steel
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ASTM A307 Grade B / A194 2H (Zinc plated)
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10. Handwheel
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Ductile Iron / Malleable Iron
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–
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- Main Dimensions (Reference)
Note: Dimensions for reference only. Final dimensions to be verified per manufacturer’s drawing. (Unit: mm / inch)
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وصف
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Dimension (mm)
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Dimension (inch)
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ملاحظات
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Face-to-Face (L)
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584
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23.0
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Per MSS SP-70 / ASME B16.10
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Flange Diameter (D)
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470
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18.5
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ASME B16.1 Class 125
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Bolt Circle Diameter (C)
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419.1
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16.5
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ASME B16.1 Class 125
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Bolt Holes (n-ød)
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12-ø25.4
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12-1.0″
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12 holes
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Flange Thickness (T)
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32
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1.26
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ASME B16.1 Class 125
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Handwheel Diameter (W)
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Approx. 500
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Approx. 19.7
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Varies by manufacturer; gearbox recommended
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Top-to-Open Height (H)
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Approx. 1100
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Approx. 43.3
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From stem top to handwheel (Reference)
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Approx. Weight
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450 kg
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990 lbs
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Estimated, varies by manufacturer
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- Inspection & Testing (API 598)
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Test Description
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Medium
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Pressure (psi)
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Requirement
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Shell (Hydrostatic)
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Water
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300
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No visible leakage
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Seat (High Pressure)
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Water
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220
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Leakage Rate: Class D (or as specified)
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Backseat Test
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Water/Air
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As required
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No visible leakage
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Low Pressure Pneumatic
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Air
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60 – 80
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Optional, leakage rate ≤ specified rating
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- Options & Accessories
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Item
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Options
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Stem Upgrade
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17-4PH / Monel / Inconel / AISI 316
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Wedge Material
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Full Stainless Steel / Nickel-Coated Ductile Iron
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عملية
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Gearbox (Recommended for 14″) / Electric Actuator / Pneumatic Actuator / Extension Stem
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Flange Facing
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Flat Face (FF) or Raised Face (RF) to match counter flange
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Coating
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Epoxy Coated (Blue RAL 5005 or Black), min. thickness 250μm per AWWA C550
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By-Pass
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By-Pass Assembly (for pressure equalization)
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Position Indicator
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Rising stem provides visual indication; optional limit switch for actuated versions
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Notes / Remarks:
- تصنيف الضغط: Class 125 per ASME B16.1 standard. Maximum allowable working pressure is 175 psi for WOG (Water, Oil, Gas) and 200 psi for saturated steam at ambient temperature.
- تصميم المقعد: Bronze seat faces are achieved by overlaying (welding) or inserting bronze rings on both body and wedge, ensuring corrosion resistance and long service life.
- تصميم الجذع: Outside Screw and Yoke (OS&Y) design isolates the stem threads from the media, allowing in-line maintenance and providing visual indication of valve position.
- Gearbox Recommendation: Due to the large size (14″), a gearbox operator is strongly recommended for ease of operation and to reduce manual effort.
- Applicable Standards: This datasheet is based on MSS SP-70 and ASME standards. Please confirm specific standard revisions and project special requirements before procurement.
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.