Welcome to our in-depth guide on threaded pipe flanges in China, a critical component in piping systems across various industries. As the demand for efficient and reliable connections grows, understanding the nuances of threaded pipe flanges becomes essential for engineers, designers, and procurement specialists alike.

In this guide, we will explore the manufacturing processes, standards, and applications of threaded pipe flanges. Readers can expect to gain insights into material selection, installation techniques, and quality control measures that ensure optimal performance in diverse environments.

By the end of this guide, you will have a comprehensive understanding of threaded pipe flanges, equipping you with the knowledge to make informed decisions in your projects. Whether you are involved in construction, oil and gas, or water supply, this information will prove invaluable in enhancing your expertise in piping solutions.

An In-Depth Guide to Threaded Pipe Flanges in China

Threaded pipe flanges are essential components in piping systems, serving as a crucial connection point between pipes. In China, a variety of manufacturers specialize in producing high-quality threaded flanges that meet international standards. This guide will provide an overview of threaded pipe flanges, including their technical features, types, and a comparison of various manufacturers.

Overview of Threaded Pipe Flanges

Threaded flanges are designed to connect to male-threaded pipes using internal threads. Unlike welded flanges, threaded flanges offer ease of installation and are ideal for situations where welding is impractical or not permitted. They are commonly used in smaller-diameter pipes and high-pressure applications.

Technical Features of Threaded Pipe Flanges

When selecting threaded pipe flanges, several technical features must be considered, including material, pressure rating, and flange face type. Below is a comparison table highlighting these features across various manufacturers.

Feature	WH Steel Co., Ltd (www.Chinasteelfittings.com)	Fusion Fittings (www.fusionfittings.com)	ZhongNuo (www.znsteelflange.com)	Cangzhou PengTong (www.fitting-flange.com)	Carbon Steel Flange (www.carbonsteelflange.com)
Material	Carbon, stainless, duplex steel	Carbon, stainless, alloy	Carbon, stainless steel	Carbon, stainless steel	Carbon steel
Pressure Rating	CL150 to CL2500	Up to 2500#	PN6 to PN100	Class 150 to 2500	Class 150 to 2500
Flange Face Type	RF, FF, RTJ	Raised face, flat face	RF, FF, RTJ	RF, FF, RTJ	RF, FF
Size Range	1/2” to 60”	Standard sizes	1/2” to 60”	1/2” to 60”	1/2” to 60”
Manufacturing Standards	ASTM, ASME, ANSI, DIN, API	ASME B16.5, B16.47	ASME, ANSI, DIN, EN	ASME, EN, JIS, GOST	ASME, ANSI

Types of Threaded Pipe Flanges

Threaded flanges come in several types, each serving specific purposes and applications. Below is a comparison table detailing the different types of threaded flanges available.

Type	Description	Applications
Threaded Flange	Contains female NPT threads for connection to male threaded pipes.	Used in reducing connections, easy installation.
Lap Joint Flange	Designed to fit over a stub end, allowing for easy alignment.	Used in applications requiring frequent disassembly.
Blind Flange	Has no bore and is used to seal off a piping system.	Commonly used to terminate lines or as a cover.
Socket Weld Flange	Designed for smaller pipes with a socket for pipe insertion.	Used in high-pressure systems.
Weld Neck Flange	Features a long neck to allow for welding to the pipe.	Used in high-pressure and temperature applications.

Comparison of Manufacturers

Several manufacturers in China specialize in producing threaded pipe flanges, each offering unique features and benefits:
– WH Steel Co., Ltd (www.Chinasteelfittings.com): Known for a wide range of materials and certifications, including ISO9001-2015.
– Fusion Fittings (www.fusionfittings.com): Offers a diverse product range with fast shipping and a strong focus on quality control.
– ZhongNuo (www.znsteelflange.com): Emphasizes competitive pricing and extensive manufacturing processes, ensuring high quality.
– Cangzhou PengTong (www.fitting-flange.com): Renowned for its reliable service and compliance with various international standards.
– Carbon Steel Flange (www.carbonsteelflange.com): A factory-direct supplier known for cost-effective solutions.

Conclusion

Threaded pipe flanges are critical components in piping systems, especially where welding is not feasible. With various types and technical features, selecting the right flange depends on specific application needs. Manufacturers in China, such as WH Steel Co., Fusion Fittings, ZhongNuo, Cangzhou PengTong, and Carbon Steel Flange, provide a broad spectrum of options, ensuring quality and compliance with international standards.