Globe Valve Design Standards — A Practical Guide

Globe valves are essential across many industries because of their accurate flow control and dependable performance. Multiple standards govern globe valve design, and choosing the right one depends on the application, size, and operating conditions. This guide summarizes seven key globe valve standards (API, ANSI, and ASME), explains their focus, and lists typical uses to help you select the correct standard for your system.

API Standards for Globe Valves

API 600 — Bolted Bonnet Steel Globe Valves

API 600 covers bolted-bonnet steel globe valves built for refinery and petrochemical service. These valves are engineered to withstand high pressures and elevated temperatures, offering robust materials and tight sealing for long-term reliability.

Typical applications:

• Oil and gas pipelines

• Refinery processes

• High-temperature steam systems

API 602 — Forged Steel Globe Valves (Small Sizes)

API 602 applies to forged-steel globe valves, generally for sizes up to 4 inches. Common features include bolted or welded bonnets and OS&Y (Outside Screw and Yoke) configurations. These valves perform reliably under high-pressure conditions.

Typical applications:

• Petrochemical processing

• Power generation

• High-pressure steam lines

API 623 — General Industrial Globe Valves

API 623 is intended for globe valves used in general industrial service. It emphasizes improved performance and leakage control across a range of temperatures and service conditions.

Typical applications:

• Water treatment facilities

• Oil and gas plant systems

• HVAC systems

API 6D — Pipeline Globe Valves

API 6D governs pipeline valves—including globe valves—used in transmission and distribution systems. The standard covers design, manufacture, and testing with a strong focus on safety and dependable operation in critical pipeline environments.

Typical applications:

• Transmission pipelines

• Compressor stations

• Subsea pipeline installations

ANSI Standards for Globe Valves

ANSI Globe Valve

ANSI standards define mechanical integrity and performance criteria for globe valves across many industries. They promote compatibility with global piping systems and provide a baseline for pressure and temperature performance.

Typical applications:

• General industrial manufacturing

• Food and beverage processing

• Municipal water treatment

ANSI Oil & Gas Pipeline Globe Valve

These ANSI-based pipeline globe valve specifications are tailored to the demanding requirements of the oil and gas sector, emphasizing leak-tight sealing, durability, and consistent performance under high pressure.

Typical applications:

• Crude oil pipelines

• Natural gas distribution networks

• Offshore drilling platforms

ASME Globe Valve Standards

ASME B16.34 — Pressure-Temperature Ratings and Materials

ASME B16.34 specifies pressure-temperature ratings, materials, dimensions, and testing methods for valves, including globe valves. It is widely used where high-pressure and high-temperature service demands stringent material and testing requirements.

Typical applications:

• Power generation plants

• High-pressure steam and gas lines

• Chemical processing systems

Comparing the Standards — Key Differences

Understanding the differences helps match the valve to the application:

• Application focus: API standards are geared toward oil & gas and petrochemical environments; ANSI and ASME cater to a broader set of industries such as water systems, HVAC, and chemical processing.

• Size and construction: API 602 is optimized for small, high-pressure valves (typically ≤ 4 inches). API 623 and ASME B16.34 address larger valves and systems with higher flow or stricter pressure-temperature needs.

• Pressure–temperature rules: ASME B16.34 provides detailed guidance for extreme pressure and temperature conditions, making it preferred for mission-critical installations.

How to Choose the Right Standard?

Focus on three primary factors:

• Industry requirements: Select standards that match the regulatory and operational needs of the industry (e.g., API 6D or API 600 for oil & gas; ASME B16.34 for power or chemical service).

• Pipeline parameters: Consider pipe size, pressure, and temperature. Small, high-pressure lines often suit API 602; larger or lower-pressure systems may be better served by ANSI or ASME standards.

• Safety and compliance: Ensure the valve standard satisfies local and international safety regulations and any project-specific certification needs.

Conclusion

A clear understanding of globe valve standards—API, ANSI, and ASME—streamlines the selection process and helps ensure safe, efficient, and long-lasting operation. Match the selected standard to your industry, pipeline conditions, and regulatory requirements to achieve optimal results.

Manufacturer Note

If you need high-quality globe valves that conform to industry standards, consider Solid. They supply durable, precisely engineered globe valves suitable for oil & gas, water treatment, and industrial applications.