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Globe Valves

Globe valves, named for their spherical body shape, are designed for precise flow regulation and shut-off, featuring an internal baffle with a seat and a movable disc to control fluid flow.

Available in cast and forged steel, globe valves are critical in industries such as oil and gas, chemical processing, and power generation, offering reliable performance in high-pressure systems.

Globe Valves

Globe valves feature a spherical body divided by an internal baffle, forming a seat where a movable disc (or plug) regulates or stops flow. Their design excels in throttling applications, providing precise flow control, unlike gate valves which are suited for on-off service. Cast steel globe valves are used in larger, high-pressure systems, while forged steel variants are ideal for smaller, high-integrity applications. Their robust construction and versatile connection options ensure durability in demanding industrial environments.

Key Properties of Globe Valves

  • Flow Regulation: Ideal for throttling and precise flow control.
  • Tight Sealing: Movable disc ensures reliable shut-off.
  • High Durability: Cast and forged steel construction for demanding conditions.
  • Connection Versatility: Available in RF, RTJ, NPT, SW, flanged, and welded ends.

Common Standards and Materials

Globe valves are manufactured to meet rigorous industry standards, ensuring performance and compatibility in various systems.

Type/Standard Material Application
Cast Steel: API 600, BS1414, BS1873, BS1868 4130, 410, A487 4C, CA15, CF8M Oil and gas, power generation
Forged Steel: API 602, BS5352 Duplex, Super Duplex, Inconel High-pressure, small-diameter systems

Applications of Globe Valves

Globe valves are essential in industries requiring precise flow control and reliable shut-off:

  • Oil and Gas: Regulates flow in pipelines and processing facilities.
  • Power Generation: Controls steam and water flow in power plants.
  • Chemical Processing: Manages corrosive fluids in reactors.
  • Water Treatment: Adjusts flow in treatment and distribution systems.

Specifications

Properties Values & Limits
Material 4130, 410, A487 4C, CA15, CF8M, Duplex, Super Duplex, Inconel
Design Standards API 6A, ASME VIII, API 6FA, API 600, BS1414, BS1873, BS1868, API 602, BS5352
Connection RF, RTJ, NPT, SW, Flanged, Welded
Size Range 2" to 48" (Cast); 1/2" to 2" (Forged); 2 1/16" to 4 1/16" (API 6A)
Pressure Rating Up to ANSI Class 1500 lbs; 2000–10,000 PSI (API 6A)
Face to Face API 6D, ASME B16.10
Testing Standards API 6A, ISO 5208
Flange Details ASME B16.5, API 6A
Product Spec Level PSL 1, 2, 3, 3G, 4
Trims API Class AA to HH, TCC Coated Seats

Considerations for Use

  • Throttling Suitability: Best for applications requiring flow regulation, not just on-off control.
  • Pressure Drop: Account for higher pressure loss compared to gate valves when fully open.
  • Material Selection: Match valve material to fluid and environment to prevent corrosion.