4″*3″-1500LB F316L 3-Piece Trunnion Ball Valve

TECHNICAL DATA SHEET

Product: 3-Piece Trunnion Mounted Ball Valve – Metal Seated
Taille: 4″ x 3″ (Reducer Bore / Reduced Port)
Classe de pression : Class 1500
Matériau du corps : F316L (ASTM A182 F316L)
Seat Type: Metal‑to‑Metal Seated
Design: 3-Piece Body, Trunnion Ball

1. Basic Specifications

2. Main Features

• Trunnion Mounted Ball: Ball is supported by upper and lower trunnion bearings, reducing operating torque and ensuring smooth operation under high differential pressure. Ideal for large sizes and high‑pressure applications.
• Reduced Bore (4″ x 3″): 4″ flanged connections with a 3″ internal bore reduces weight and cost while maintaining adequate flow capacity.
• 3-Piece Body Construction: Center body with bolted end caps allows easy in‑line maintenance – seats, ball, and seals can be accessed without removing the entire valve from the pipeline.
• Metal‑to‑Metal Seating: Ball and seats are hardfaced with wear‑resistant alloys (e.g., tungsten carbide, chromium carbide, or Stellite). Provides exceptional durability in high‑temperature, abrasive, and erosive services.
• Spring‑Loaded Seats: Metal seats are typically pre‑loaded with Inconel springs to maintain continuous contact with the ball, ensuring tight shut‑off even under low pressure or thermal cycling.
• Double Block & Bleed Capability: With two independent metal seats, the cavity between seats can be vented or monitored.
• Anti‑Static Device: Ensures electrical continuity between ball, stem, and body.
• Blowout‑Proof Stem: Stem is designed to prevent ejection under pressure.

3. Material List (Metal Seated Configuration)

Note: Hardfacing materials can be customized based on media and temperature (e.g., Stellite 6, Stellite 21, tungsten carbide).

4. Hardfacing Options for Metal Seats

5. Dimensions & Structural Data (Flanged Ends)

Note: Final dimensions to be confirmed by manufacturing drawings.

6. Design & Testing Standards

7. Metal Seated vs. Soft Seated Comparison

8. Operating Torque & Actuator Sizing

• Higher Torque Requirement: Metal seated valves require significantly higher torque than soft seated valves due to metal‑to‑metal contact and spring preload.
• Trunnion Advantage: Despite higher torque, the trunnion design reduces torque compared to a floating ball of the same size.
• Safety Factor: Actuator output torque should be at least 1.3 – 1.5 times the maximum measured valve torque.
• Breakaway Torque: Especially critical after prolonged closure; may be higher than running torque.

9. Typical Applications

• High‑Temperature Processes: Refinery thermal cracking units, FCCU slurry, steam systems up to 500°C.
• Abrasive Media: Catalyst lines, mining slurries, sand handling.
• Sour Service: With NACE MR0175 materials, suitable for high‑pressure sour gas.
• Offshore & Subsea: Corrosion‑resistant F316L with metal seats for reliability in demanding environments.
• Chemical Processing: Handling corrosive fluids at elevated temperatures.

10. Ordering Information

When ordering, please specify:

• Size: 4″ x 3″ (Reduced Bore)
• Pressure Class: Class 1500
• Body Material: F316L
• Seat Type: Metal Seated (specify hardfacing: WC / CrC / Stellite)
• End Connections: Flanged – ASME B16.5 Class 1500 (RF or RTJ)
• Optional Features: NACE MR0175, cryogenic trim (if required), spring‑loaded seats, actuator mounting

This data sheet reflects the metal seated configuration for the 4″ x 3″ – 1500LB F316L 3-Piece Trunnion Ball Valve. For full bore versions, soft seated options, or additional customizations, please contact us with your specific requirements.

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.