Description
Technical Data Sheet
Buried Butterfly Valve – Double Eccentric – Electric Actuator
Product Name: Buried Double Eccentric Butterfly Valve
- General Information
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Item
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Spécification
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Type de vanne
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Double Eccentric Butterfly Valve (High Performance)
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Application
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Buried Service / Underground Installation
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Taille
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60 inches (DN 1500)
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Pression nominale
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Class 150LB (200psi)
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Connection Type
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Flanged Ends (ASME B16.47 Series A or B as required)
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Opération
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Electric Actuator with Extended Stem for buried service
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- Design Standards & Specifications
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Item
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Standard
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Design & Manufacturing
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API 609 (Category B), ASME B16.34
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Face-to-Face Dimensions
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API 609, ASME B16.10
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Flange Dimensions
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ASME B16.47 (Series A / MSS SP-44 or Series B / API 605)
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Pressure Testing
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API 598
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Coating Standard (Buried)
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GB/T 17459 or AWWA C210 (Coal Tar Epoxy)
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Actuator Mounting
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ISO 5211
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- Main Component Materials
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Part Name
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Material Specification
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Corps
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Ductile Iron ASTM A536, 60-40-18 / GGG40
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Disque
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Ductile Iron / Stainless Steel (Optional)
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Seat (Seal)
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EPDM (Ethylene Propylene Diene Monomer) – Suitable for Water/Wastewater
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Shaft / Stem
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Stainless Steel 410 / 17-4PH (Extended Stem for burial)
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Bushings
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Self-Lubricating Bronze / PTFE Lined
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Body O-Rings
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Buna-N / EPDM
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Boltwork
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ASTM A193 B7 / A194 2H (Zinc Plated)
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External Coating
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Coal Tar Epoxy (Thick coating for buried service)
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- Technical Parameters & Dimensions (Reference)
Coating Specification:
- Standard: Coal Tar Epoxy conforming to AWWA C210 or GB/T 17459 .
- Color: Black
- Dry Film Thickness: > 300 Microns (or as required for buried service)
- Feature: High electrical resistance, anti-corrosive, and resistant to soil chemicals.
Valve Dimensions (Approximate values for 60″ / DN1500):
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Dimension
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Value (Approx.)
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Notes
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Face-to-Face (L)
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600 mm – 800 mm
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Dependent on API 609 Cat. B design
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Flange O/D (D)
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1380 mm – 1480 mm
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ASME B16.47 Series A
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Bolt Circle (D1)
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1330 mm – 1430 mm
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Dependent on flange standard
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Number of Bolt Holes
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48 – 56
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/
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Valve Height (w/o operator)
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Custom
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Dependent on extended stem length
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Extended Stem Length
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As per burial depth
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Typically 2m, 3m, or as specified
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- Electric Actuator Specifications
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Item
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Requirement
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Actuator Type
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Heavy-duty Electric, Quarter-turn (90°)
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Power Supply
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380V AC / 50Hz / 3-Phase (or as specified)
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Torque
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≥ 1.5 x Required Valve Break Torque
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Protection Class
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IP68 (Watertight for buried applications)
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Duty Cycle
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S2 / S4 (Intermittent)
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Motor Insulation
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Class H / F
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Manual Override
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Handwheel with declutch mechanism
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Limit Switch
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Fully adjustable (Open/Close)
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Control Type
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On-Off / Modulating (4-20mA) as required
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- Essai
- Shell Test: 1.5 x Rated Pressure
- Seat Test: 1.1 x Rated Pressure (Bi-directional)
- Leakage Rate: Zero Leakage (API 598)
Technical Notes:
- Double Eccentric Design: The shaft is offset from both the centerline of the disc and the body, reducing seat wear during operation.
- Extended Stem: Allows the actuator to be positioned above ground while the valve body remains buried. The stem extension is sealed to prevent ingress of moisture and soil.
- Buried Coating: The coal tar epoxy provides a durable barrier against galvanic corrosion and soil stress .
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.