7 Globe Valve Design Standards You Need to Know

Globe valves are indispensable in many industries for their precise flow control and reliability. With various standards governing their design, it can be challenging to determine which standard suits specific needs. 

This guide covers seven important globe valve design standards, including API, ANSI, and ASME specifications. It explains each standard, highlights features, and outlines common uses, providing clear insights for anyone interested in valve technology.

API Standards for Globe Valves

O American Petroleum Institute (API) standards are widely recognized in the oil, gas, and petrochemical industries. Let’s explore the key API standards for globe valves.

Padrão	Tipo de válvula	Aplicações comuns	Principais características
API 600	Steel Globe Valve	Oil & gas, refineries, high-temp steam systems	High-pressure, high-temp, precise sealing
API 602	Forged Steel Globe	Petrochemical, power generation, steam systems	Small pipelines, bolted/welded bonnets
API 623	Válvula global	Water treatment, oil & gas, HVAC	Leakage prevention, temperature range
API 6D	Pipeline Globe Valve	Transmission pipelines, subsea, compressor stations	Safety, testing, critical pipeline use
ANSI Globe	Válvula global	Manufacturing, food & beverage, water treatment	Mechanical integrity, versatile pressure
ANSI Oil & Gas	Pipeline Globe Valve	Oil pipelines, gas distribution, offshore drilling	Leak-proof, high-pressure durability
ASME B16 34	Válvula global	Power plants, chemical processing, high-pressure lines	Pressure-temp ratings, high-temp materials

1. API 600 Globe Valve

API 600 focuses on bolted bonnet steel globe valves for refinery and petrochemical applications. These valves are made to handle high-pressure and high-temperature conditions. They include precise sealing and robust materials to ensure long-term reliability.

Common Applications:

API 600 globe valves are typically used in the following ways:

• Oil and gas pipelines
• Refinery operations
• High-temperature steam systems

2. API 602 Globe Valve

API 602 applies to forged steel globe valves, typically used for smaller pipelines (up to 4 inches). These valves feature bolted or welded bonnets, OS&Y (Outside Screw and Yoke) design, and excellent performance under high-pressure conditions.

Common Applications:

• Petrochemical processing
• Power generation
• High-pressure steam systems

3. API 623 Globe Valve

API 623 is tailored explicitly for globe valves used in general industrial applications. It emphasizes enhanced performance, leakage prevention, and suitability for various temperature ranges.

Common Applications:

• Water treatment plants
• Oil and gas industries.
• HVAC systems.

4. API 6D Globe Valve

API 6D is a standard for pipeline valves, including globe valves, ensuring reliable operation in oil and gas pipelines. It covers design, manufacturing, and testing, focusing on safety and efficiency in critical pipeline operations.

Common Applications:

• Transmission pipelines
• Compressor stations
• Subsea applications

ANSI Standards for Globe Valves

O American National Standards Institute (ANSI) sets the design benchmarks for valves used in various industries.

5. ANSI Globe Valve

ANSI standards focus on válvulas globo‘ mechanical integrity and performance under different pressures and temperatures. They ensure compatibility with piping systems worldwide.

Common Applications:

• Industrial manufacturing processes.
• Food and beverage systems.
• Basic water treatment plants.

6. ANSI Oil and Gas Pipeline Globe Valve

These valves are designed to meet the stringent requirements of the oil and gas industry. ANSI pipeline globe valves focus on leak-proof sealing, durability, and efficient performance under high-pressure conditions.

Common Applications:

• Crude oil pipelines
• Natural gas distribution
• Offshore drilling rigs

ASME Globe Valve Standards

O American Society of Mechanical Engineers (ASME) provides standards focusing on valve design and material quality for safe operations.

7. ASME B16 34 Globe Valve

ASME B16 34 sets the standard for pressure-temperature ratings, materials, dimensions, and testing for globe valves. These valves are suitable for high-temperature and high-pressure environments and are made from carbon steel, stainless steel, and alloy steel.

Common Applications:

• Power generation plants.
• High-pressure steam and gas lines.
• Chemical processing systems.

Comparação de diferentes padrões

Key Differences Between the Standards

Knowing the differences between these standards makes it easier to pick the right one for your needs:

• Application Focus: API standards are specifically developed for the oil and gas industry, addressing the unique requirements of these environments. In contrast, ANSI and ASME standards cater to various other industries, including water systems, HVAC, and chemical processing, making them more versatile options.
• Size Range: For small valves, typically up to 4 inches, API 602 is the preferred choice, especially in high-pressure systems. Larger valves or systems requiring high flow rates are better suited to API 623 and ASME B16.34 standards.
• Pressure-Temperature Ratings: ASME B16.34 provides detailed rules for handling high pressure and temperature. This makes it a top choice for critical environments like power plants or chemical reactors.

How to Choose the Right Standard

Picking the right standard for a globe valve doesn’t have to be complicated. Focus on these three main things:

1. What the Industry Needs: Different industries have specific requirements for valves. For example, standards like API 6D or API 600 are recommended in oil and gas because they are designed to handle high pressure and large volumes of fluid or gas. In power plants and water treatment systems, ASME B16.34 is a more versatile choice that can meet the demands of various operating conditions.
2. Pipeline Details: Consider the pipeline’s size, pressure, and temperature requirements. For smaller pipelines operating under high pressure, API 602 is ideal as it is designed specifically for compact valve configurations. ANSI standards can provide a cost-effective and reliable solution for larger or lower-pressure systems.
3. Rules and Safety: Ensure the valve complies with all safety standards. Verify that the chosen standard meets local and international safety and regulatory guidelines to ensure smooth operation and avoid potential issues.

Conclusão

Understanding globe valve design standards is important for choosing the best valve for your needs. Standards like API, ANSI, and ASME provide rules for different industries and uses. By matching the proper standard to your system, you can make it work better, stay safe, and last longer.

If you’re looking for high-quality globe valves, check out PansValve. They are a trusted manufacturer offering durable, precise valves that meet industry standards. Their products work well in industries like oil and gas, water treatment, and more. Learn more about their globe valve options here. Use these standards and reliable products to choose your system best.

Referência

• https://cncontrolvalve.com/ultimate-guide-to-globe-valves
• https://www.hawsd.com/news/industry-news/7-trends-in-valve-design.html
• https://www.fctvalve.com/libr/globe-valve