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API 6D ball valve selection guide

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Home News 4" 600LB API 6D Fire Safe Anti-static Floating Ball Valve WCB | High-Pressure Industrial Valve
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4 600 WCB Floating Ball Valve

I. Product Overview

The 4" 600LB API 6D Fire Safe Anti-static Floating Ball Valve WCB is engineered for high-pressure, flammable, and demanding industrial service. With a WCB carbon steel body, it delivers solid mechanical strength, pressure resistance, and dependable performance for pipeline systems in oil and gas, petrochemical, chemical, power generation, and general industrial applications.

Built to API 6D requirements, this valve includes fire-safe construction and anti-static design, helping improve safety in environments where fire risk and static discharge must be carefully controlled.

II. Key Features

  1. 4-inch size for standard pipeline systems
    Easy to integrate into common industrial piping layouts.

  2. 600LB pressure class
    Suitable for high-pressure operating conditions.

  3. API 6D compliant design
    Widely recognized for pipeline valve applications.

  4. Fire-safe construction
    Helps maintain sealing capability under fire exposure scenarios.

  5. Anti-static function
    Reduces static buildup and improves safety in flammable service.

  6. WCB carbon steel body
    Offers a practical balance of strength, durability, and cost efficiency.

III. How It Works

A floating ball valve uses line pressure to press the ball against the seat, creating a tight seal. This design provides fast quarter-turn operation, compact structure, low flow resistance, and reliable shutoff performance. It is especially suitable for systems that require frequent operation and dependable sealing.

IV. Typical Applications

This valve is commonly used in:

  • Oil and gas pipelines

  • Refining systems

  • Chemical processing lines

  • Natural gas facilities

  • Power plant piping

  • High-pressure fluid transfer systems

V. Why Choose WCB Material

WCB is a widely used carbon steel casting material known for its good strength, castability, and cost performance. For many industrial services, WCB provides a reliable valve body solution with excellent overall value. For corrosive media, material selection should always be matched to the actual process conditions.

VI. Selection Tips

When specifying a 4" 600LB API 6D Fire Safe Anti-static Floating Ball Valve WCB, consider the following:

  • Media type

  • Pressure rating

  • Operating temperature

  • End connection

  • Seat material

  • Fire-safe requirement

  • Anti-static requirement

  • Operating method

Correct selection helps improve system safety, reduce maintenance, and extend service life.

VII. Product Benefits

This valve combines safety, durability, and engineering compatibility. It is a strong choice for industrial users who need stable shutoff performance in high-pressure systems and want a valve designed for harsh operating environments.

VIII. Conclusion

If your project requires a reliable industrial ball valve with fire-safe and anti-static features, the 4" 600LB API 6D Fire Safe Anti-static Floating Ball Valve WCB is a strong option. It is built for demanding service conditions and supports safer, more efficient pipeline operation.

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Nominal Size: 1-1/2 inch / DN40 Pressure Rating: 1000 WOG (68.9 bar cold working, non-shock) Body Type: Three piece, bolted end caps, four body bolts Body Material: ASTM A351 CF8 (304), CF8M (316) optional Ball: CF8, polished Ra 0.4 µm, full or reduced bore Seat: PTFE, RPTFE, PPL, or Stellite faced metal Body Gasket: PTFE to 180°C, graphite above Packing: PTFE V-ring to 200°C, graphite above End Connection: NPT, BSP, socket weld B16.11, butt weld B16.25, flanged RF Actuator Mounting: ISO 5211 F05 / F07 pad Air Supply: 0.4 to 0.7 MPa clean dry air Service Temperature: -29°C to +260°C, seat dependent Design Reference: MSS SP-110 general purpose, ASME B16.34 body wall Test Standard: API 598, ISO 5208
Nominal Size: 3/4 x 1/2 inch (DN20 x DN15), reduced bore Pressure Class: ASME Class 600 / PN100, 102.1 bar at 38°C Body Material: ASTM A182 F51 forged duplex, UNS S31803 PREN: Approximately 35 Ball: F51 with HVOF tungsten carbide or Stellite overlay Stem: F51, SS316 or 17-4PH, blowout proof Seat: RPTFE, Devlon, PEEK, or Stellite faced metal Bolting: B8M Class 2, alloy 718, or B7M for sour service End Connection: NPT, BSP, socket weld ASME B16.11, butt weld ASME B16.25 Bleed Port: Cavity bleed with plug or needle valve, lockable option Service Temperature: -29°C to +300°C, seat dependent Design Standard: API 6D, API 608, ASME B16.34 Test Standard: API 598, ISO 5208, cavity test through bleed port Sour Service: NACE MR0175 available