What are the different types of flange valves?

There are various flange valve types on the market, including flange ball valves, flange check valves, flange gate valves, flange globe valves, and butterfly valve flanges.

They all have flanged ends and manage flow and pressure while providing liquid separation and leak-free pipe connections, but their internal structure and primarily benefits vary.

As an experienced flange valve manufacturer, we understand your need for efficient production, and our expertise can assist you in selecting the right valve type.

Discover the best flange valve types for your operation, like their benefits and typical applications.

1. Flange Ball Valve

These flange valve types have a spherical ball with a hole in the center.

Fluid flows quickly while the hole and pipe are lined up; rotating the ball 90 degrees prevents flow entirely.

Specialized Industry Applications

They are known for their rapid on/off actions and can often manage pressures of 150 psi to 300 psi or greater, as well as temperatures ranging from 29°C to +200°C.

As a result, unlike non-flanged valves, these flange valve types have a strong seal and connection, making them a better choice in demanding industries, such as:

• Oil and gas: can withstand strong chemicals and high pressures while allowing for easy maintenance.
• Power Generation: Quick shutoff in high-temperature, high-pressure steam systems.

2. Flange Gate Valve

These flange valves work by linearly raising or lowering a parallel gate to allow or stop flow.

Specialized Industry Applications

They are frequently used because they reliably block flow, have a stronger connection to pipes, and can withstand higher pressures (150-300 psi) and temperatures (-29°C to 425°C) than non-flanged valves.

So, key industries choose them for a variety of reasons, such as:

• Oil & gas: handle high-pressure and high-temperature
• Power generation: managing the flow of corrosive or reactive chemicals.
• Petrochemical Processing: durability under high temperature and pressure

However, similar to flange valve types, they faced several issues.

They frequently experience leakage and deformation concerns at the gate and sealing surfaces, as shown by studies like those by Chunyin Deng et al. and Xiaoke He et al.

Fortunately, our Forged Integral Flanged End Valves overcome these issues using advanced features:

• To avoid deformation and leakage, materials that are resistant to corrosion, wear, and thermal fatigue are used (e.g., ASTM A105N, F304, F316, F321, and graphite).
• The OS&Y (Outside Stem and Yoke) design ensures appropriate seating and prevents partial closure.
• And so on

3. Flange Check Valve

This flange-end valve contains a disc that is pushed when material flows in the right direction, allowing it to pass through the pipes.

But as the material tried to flow backwards, it was pushed back against the seat.

Specialized Industry Applications

They are used across industries for their benefits, including:

• Chemical Processing: These flanged valves can handle high-pressure applications (typically pressure rating 6 bar to 160 bar) and hazardous compounds with strong pipe connections.
• Water Treatment and Wastewater Management: Stop the reverse flow of tainted water or sewage to ensure regulatory compliance.

4. Flange Globe Valve

They feature flanged ends and use a moveable disc or plug attached to a stem that moves up and down against the seat to start, stop, or control the flow rate.

Specialized Industry Applications

Flange valve types with this unique design make them highly sought out by various industries such as:

• HVAC: controls hot or chilled water and steam flow due to its accurate management capability.
• Chemical Processing Plant: They are used to handle the flow of chemicals and corrosive substances, and the flanges aid in preventing leaks more.

5. Butterfly Valve Flange Type

They have flanged ends, like the other flange valve types covered in this article.

But, they differ in terms of their function, too, which involves rotating a disc (“butterfly”).

The valve opens when the disc’s edges line up (parallel) with the pipe flow and closes when the disc’s face turns across (perpendicular to the flow) the pipe path.

Specialized Industry Applications

Because of their strong sealing, basic flow control, and ease of maintenance, they are frequently used in industries including:

• Water Treatment Plants: Handle the flow of water, manage pressure, and transfer thick waste while maintaining strong pipe connections.
• Chemical processing plants: successfully manage the flow of corrosive and abrasive chemicals.

Flange Valve Types: Conclusion

All flange valve types provide safer connections to the piping system than non-flanged valves.

However, they are all distinctive in terms of internal design and primary benefits for managing material flow.

CLDG is an ISO-certified manufacturer with over 20 years of valve production experience.

We assure that we deliver sophisticated forged valve products to meet the different production demands of our customers.

Request a product brochure now to see how our skills can help your business succeed and run more efficiently!