China Threaded Flange Manufacturers Suppliers Factory - Wholesale Threaded Flange

Your Professional Threaded Flange Supplier

Ningbo Guohao Electro-Hydraulic Engineering Co., Ltd. has over 15 years of manufacturing experience. We combine strong technical expertise, advanced precision production equipment, and specialized hydraulic cylinder and system engineering capabilities. Our main products include hydraulic connectors, flanges (both welded and threaded), hydraulic hose connectors, nuts, and CNC machined parts. We sincerely welcome global customers and industry partners to visit our factory and explore collaborative opportunities.

Bspt Flange
A Bspt flange, also known as a British Standard Pipe Taper flange, is a crucial component in piping systems. The inner hole of the Bspt flange is machined to a tapered pipe thread, which is denoted
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Npt Threaded Flange
An NPT threaded flange is a kind of flange with a female NPT (American National Pipe Tapered Thread) in the center. It is used to connect with the male end of NPT threaded piping.
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Raised Face Threaded Flange
A raised face threaded flange is a key piping component. It has internal threads that enable connection to pipes or fittings with matching external threads, facilitating easy assembly and disassembly.
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Why Choose Us

Extensive Experience
With over 15 years of experience in the manufacturing industry, we have accumulated extensive practical experience in production process optimization and quality control systems. We are able to efficiently address various technical issues during the production process and effectively ensure the consistent and stable quality of our products.

Customized Services
We provide customized solutions, encompassing design and manufacturing, dedicated to meeting the individual needs of customers in various industries in terms of functionality, specifications, and application scenarios.

Advanced Equipment
We are equipped with internationally advanced precision machining equipment, which significantly improves production efficiency and product accuracy, ensuring that our products meet high standards in dimensional tolerances and overall quality, thereby enhancing our products' competitive advantage in the market.

Specification

Specification	Value
Thread Type	Threaded (NPT/BSPT)
Material	Carbon Steel ASTM A105/A105N
Design Standard	ANSI/ASME B16.5
Pressure Class	150#, 300#, 600#
Size Range	1/8″ to 4″
End Connection	Internal Thread NPT/BSPT
Face Finish	125-250 AARH
Face Type	Raised Face (RF)
Temperature Range	-20°F to +800°F
Coating	Black Paint/Bare/Galvanized
Testing	100% Hydrostatic Tested

Key Advantages of Threaded Flange

No Welding, No Problem
With threaded flanges, you don't need to worry about the risks and logistics of welding. Simply screw them onto the pipe, and you're ready to go! The ability to install without heat exposure makes threaded flanges perfect for environments where safety is a concern.

Easily Adjustable and Reusable
Threaded flanges provide a high level of adjustability. Because they can be unscrewed and reattached as needed, they are highly practical for systems that may need to change or adapt over time. Whether you're modifying the layout or replacing a section of piping, threaded flanges offer flexibility without compromising the integrity of the connection.

Great for Low-Pressure and Low-Temperature Systems
While threaded flanges are not suitable for high-pressure environments, they excel in low-pressure and low-temperature applications. This makes them great for residential and light commercial systems where the piping doesn't experience extreme conditions. The threads provide a secure connection that can easily be tightened for a leak-resistant seal.

Reduced Cost and Maintenance
Since threaded flanges don't require welding, they help save on installation costs. If the flange or pipe needs to be replaced, it's simply a matter of unscrewing the flange, rather than cutting and re-welding it. This makes repairs and adjustments less expensive and time-consuming in the long run.

Types of Threaded Flange

Standard Threaded Flanges

Standard threaded flanges are the most common type and are intended for general-purpose applications. The pipes have external threads that mate with their internal threading for a simple, dependable connection. These flanges are ideal for moderate-pressure systems where welding is infeasible or undesirable.

Raised Face (RF) Threaded Flanges

Raised-face threaded flanges possess a face slightly raised from around the bore. This feature enhances the sealing capability by increasing the gasket area. Raised-face threaded flanges see wide application when a strong seal is desired, especially in high pressure or high temperature.

Flat Face (FF) Threaded Flanges

Flat-face threaded flanges have a smooth, flat contact surface. They are mainly used under low-pressure applications and where the mating flange or pipe has a flat face. This flat surface ensures an even distribution of pressure across the seal and is not likely to deform the gasket.

RTJ (Ring Type Joint) Threaded Flanges

RTJ flanges are specially designed with a machined groove on the face for a metal ring gasket. This provides an excellent seal, and because of this, they find great application in high-pressure and high-temperature industries such as oil and gas or chemical.

Threaded Flange Material

01.

Carbon Steel

General-purpose applications where high strength and low cost are required.

02.

Stainless Steel

Excellent resistance to corrosion, applicable in harsh or corrosive environments.

03.

Alloy Steel

Used in high-performance systems, including high-temperature and/or high-pressure systems.

04.

Cast iron

This is usually used for low-pressure, non-corrosive applications because of its inexpensiveness.

The Role Of Threaded Flange

Threaded flanges have been designed for a secure, leak-proof connection between pipes without welding. The inner threads of those pipes match the outward threads of the pipe but can be screwed tight together to form a good seal.

Welded Flange VS Threaded Flange

Feature	Weld flanges	Threaded flanges
Connection Method	Butt weld	Screw/thread
Pressure Suitability	High pressure	Low pressure
Installation	Requires welding	No welding needed
Strength & Durability	High	Moderate
Best for	High-pressure, high-temperature, and large-scale piping	Low-pressure, small-diameter, and hazardous environments

Common Uses of Threaded Flange

Water Treatment and Supply Systems

In water treatment plants, threaded flanges are used for low-pressure connections that require secure, yet easily modifiable joints. Whether it's freshwater or waste treatment, these flanges allow easy maintenance of piping systems without significant downtime.

Compressed Air Systems

For applications like compressed air distribution, threaded flanges are an ideal choice. These systems generally operate at a lower pressure, making threaded connections practical. The ability to unscrew and reseal the connections also ensures quick fixes to any leaks or system adjustments.

Fire Protection and Sprinkler Systems

Fire suppression systems often use threaded flanges for their piping. Since these systems are low-pressure and sometimes require quick assembly, threaded flanges are the preferred choice. They also allow for swift and safe disassembly during inspections or when replacing outdated components.

Non-Hazardous Gas Piping

In situations where low-pressure gas (like natural gas or propane) is transported, threaded flanges are a safe and practical option. Since there is no welding involved, there's less risk when dealing with combustible gases, making them suitable for residential or light commercial gas supply systems.

Irrigation and Agricultural Systems

Threaded flanges are widely used in agricultural settings, particularly for irrigation systems. They allow farmers to quickly extend or modify their irrigation networks based on crop layout changes or seasonal needs.

Order Process

Contact Customer Service

Submit Order

Obtain a Quote

Confirm Order

Arrange Payment

Track Order

Receive and Inspect Goods

Packaging and Shipping

Packaging	Loose package, Wooden cases
Transportation methods	Road transport, rail transport, sea transport, air transport

FAQ

Q: Where are threaded flanges used?

A: Threaded flanges are used in systems where welding is not possible or safe, such as low-pressure piping, temporary systems, and hazardous environments where heat could pose a risk.

Q: Are threaded flanges suitable for high-pressure systems?

A: No, threaded flanges are not suitable for high-pressure applications. They are best used for low-pressure and low-temperature systems.

Q: How do threaded flanges compare to welded connections?

A: Threaded flanges screw onto pipes without welding, making them easy to install and adjust. Welded connections are more permanent and suitable for higher pressures.

Q: Can threaded flanges be reused?

A: Yes, threaded flanges can be easily unscrewed, adjusted, and reused, making them practical for systems requiring frequent changes or maintenance.

We're well-known as one of the leading threaded flange manufacturers and suppliers in China. If you're going to wholesale high quality threaded flange, welcome to get more information from our factory. Also, custom service is available.

Bspt Flange, Flange Bsp, Raised Face Threaded Flange

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