Description
TECHNICAL DATASHEET
3″ 125LB GATE VALVE (OS&Y)
1. General Specifications
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Item
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Spécification
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Type de vanne
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Rising Stem Gate Valve (OS&Y – Outside Screw and Yoke)
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Taille nominale
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3 inches (3″) / DN80
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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 – Raised Face / Flat Face)
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Face-to-Face Dimension
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ASME B16.10 / MSS SP-70
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Test Standard
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API 598 / MSS SP-70
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- Design Parameters
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Item
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Unit/Standard
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Paramètre
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Design Pressure
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psi
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200 psi (Saturated Steam) / 175 psi (Non-Shock WOG) *
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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 Temp.
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°C / °F
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-29°C to 220°C (-20°F to 430°F) **
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Opération
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–
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Handwheel (Manual)
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** Pressure rating per MSS SP-70 / ASME B16.1 for Class 125.*
*** Temperature range depends on trim materials (Seat/Seal).*
- 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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DI (Ductile Iron)
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ASTM A536 (60-40-18) or ASTM A395
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2. Bonnet
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Fonte ductile
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ASTM A536
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3. Wedge (Gate)
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DI (Ductile Iron)
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ASTM A536 (Fully Guided)
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4. Seat Ring (Seat Face)
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Bronze (Integral or Ring)
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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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Compressed Non-Asbestos / Graphite
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–
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9. Bolts/Nuts
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Carbon / Alloy Steel
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ASTM A193 B7 / A194 2H
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10. Handwheel
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Cast Iron / Ductile Iron
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–
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- Main Dimensions (Reference)
Note: Dimensions are for reference only. Final dimensions to be verified per manufacturer’s drawing. (Unit: mm / inch)
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Description
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Dimension
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Remarques
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Face-to-Face (L)
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203 mm (8.0″)
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Per ASME B16.10 / MSS SP-70
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Flange Diameter (D)
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191 mm (7.5″)
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ASME B16.1 Class 125
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Bolt Circle Diam. (C)
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152.4 mm (6.0″)
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ASME B16.1 Class 125
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Bolt Holes (n-ød)
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4-19 mm (4-0.75″)
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Standard 4 holes
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Flange Thickness (T)
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23.9 mm (0.94″)
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ASME B16.1 Class 125
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Handwheel Diameter (W)
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Approx. 250 mm (10″)
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Varies by manufacturer
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Top-to-Open Height (H)
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Approx. 450 mm (17.7″)
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From stem top to handwheel (Ref.)
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- Inspection & Testing (Per API 598 / MSS SP-70)
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Test Description
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Medium
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Pressure (psi)
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Standard
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Shell (Hydrostatic)
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Water
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300
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API 598
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Seat (High Pressure)
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Water / Air
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220
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API 598
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Backseat Test
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Water / Air
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As required
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API 598
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Low Pressure Pneumatic
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Air
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60 – 80
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Optional / If required
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- Options & Notes
- Stem Upgrade: 304/316 Stainless Steel, Monel.
- Seat Replacement: Renewable Bronze Seat Rings (optional).
- Opération: Gear Operator (for higher torque applications).
- Revêtement: Epoxy Coated (Internal & External) per AWWA C550 (e.g., RAL 5005 Blue).
- Flange Face: Confirm if Flat Face (FF) is required for mating with cast iron flanges (recommended) or Raised Face (RF).
Remarks:
- Pression nominale : This datasheet is based on Class 125 rating per MSS SP-70 and ASME B16.1 standards. Working pressure is typically 200 psi for saturated steam et 175 psi for cold water/oil/gas (non-shock) .
- Wedge Material: The wedge is specified as Fonte ductile with Bronze seating surfaces (integral or welded).
- Flange Standard: Flanges are designed per ASME B16.1 Class 125, which is the correct standard for cast iron and ductile iron flanges in this pressure class
GARANTIE :
SAVVY VALVES s'engage à fournir des produits d'une qualité exceptionnelle et un service après-vente sans souci. Nos vannes sont garanties pour une durée de vie minimale de 12 mois, période durant laquelle nous fournissons gratuitement toutes les pièces de rechange nécessaires et des instructions d'entretien détaillées. Pendant la période de garantie, en cas de dommage non causé par l'homme, nous remplaçons gratuitement les composants et fournissons une assistance technique professionnelle. Après l'expiration de la garantie, seuls les pièces de rechange sont à votre charge, tout en bénéficiant de services de maintenance à prix réduits. Notre objectif est d'aider nos clients à réduire leurs coûts d'exploitation et à optimiser leur production grâce à une qualité fiable et un service après-vente complet. Qu'il s'agisse de questions techniques ou de besoins de maintenance, notre équipe d'experts répondra rapidement pour garantir le fonctionnement optimal de votre système de vannes.