YanShan Shunlinfeng Pipeline Manufacturing Co., Ltd.

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Address: Yanshan County, Cangzhou, Hebei Province, China

Long Welding Neck Flange(LWN)

A Long Welding Neck Flange is a high-performance flange used for pipe connections, widely applied in various industries. Its unique design provides exceptional durability and stability when subjected to high-pressure and high-temperature environments

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Long Welding Neck Flange(LWN)

Long Welding Neck Flange

Category:

Flange

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+8613315790503

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admin@shunlinfeng.com

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Product Detail

Product introduction

A Long Welding Neck Flange is a high-performance flange used for pipe connections, widely applied in various industries. Its unique design provides exceptional durability and stability when subjected to high-pressure and high-temperature environments. Compared to ordinary flanges, the long neck flange has a longer neck section in the pipe connection area. This structure not only enhances the strength of the pipe joint but also effectively distributes stress, reducing the risk of deformation caused by welding. Long neck flanges are particularly suitable for systems requiring high load-bearing capacity, offering improved seismic resistance and corrosion resistance.

The primary feature of this flange is its excellent sealing performance, ensuring the safe operation of the pipeline system under high-temperature and high-pressure conditions. Long neck flanges are manufactured using advanced processes and undergo strict quality control to ensure that each product meets international standards. Whether for gas or liquid transmission pipelines, or other engineering applications requiring strict sealing and strength, the long neck flange provides a reliable solution.

Due to the unique design of the welding section of the Long Welding Neck Flange, it forms a more secure connection at the pipe and flange joint, reducing the risk of leaks caused by improper welding. This design also makes the long neck flange more convenient and easier to handle when pipes need frequent disassembly or maintenance. By choosing this long neck flange, you will receive a high-quality product and excellent service, ensuring the smooth operation of your project.

A flange, also known as a flange disc or flange plate, is a component used to connect shafts or pipe ends. It serves as a connection point for the ends of pipes, as well as for the inlets and outlets of equipment, such as the reducer flange. A flange connection, or flange joint, refers to a detachable connection made by joining flanges, gaskets, and bolts to form a combined sealing structure.

Due to its excellent overall performance, flanges are extensively used across various industries, including chemicals, construction, water supply, drainage, petroleum, light and heavy industries, refrigeration, healthcare, heating systems, fire protection, power generation, aerospace, shipbuilding, and other foundational projects.

Product specification

Standards	ANSI	ANSI B16.5 ASME B16.47 series A/B
	DIN	DIN2635
	EN	EN1092-1:2002
	JIS	JIS B2220-2004, KS D3576, KS B6216 KS B1511-2007 JIS B2261; JIS B8210
	BS	BS4504 BS10 Table D/E
Material	ANSI	SS ANSI 304(L); ANSI 316(L); Duplex Steel ASTM A182; S31803; S32205
	DIN	CS RST37.2;S235JR SS 304/304L,316/316L
	EN	CS RST37.2;S235JR;C22.8SS 304/304L,316/316L
	JIS	SS400,SF440 SS 304/304L, 316/316L
	BS	CSRST37.2;S235JR;C22.8;Q235SS 304/304L,316/316
Pressure	ANSI	Class 150, 300, 600, 900, 1500, 2500lbs
	DIN	PN6,PN10,PN16,PN25,PN40,PN64,PN100
	EN	PN6,PN10,PN16,PN25,PN40,PN64,PN100
	JIS	1K,2K,5K,10K,16K,20K,30K,40K
	BS	PN6,PN10,PN16,PN25,PN40,PN64,PN100
Size	ANSI	1/2″ – 48″
	DIN	DN15-DN1200
	EN	DN15-DN1200
	JIS	15A-1500A
	BS	DN15-DN1200
Packaging	Loose package; Packaged in bundles(2Ton Max); bundled pipes with two slings at the both end for easy loading and discharging; End with Plastic caps; wooden cases.
Test	Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, hydraulic testing , X-ray Test.
Application	Light and heavy industry, refrigeration, health, water heating, fire, power, aerospace, shipbuilding and other basic projects.

Product shooting

Factory

Product packaging

We can provide wooden box packaging, pallet packaging, carton box packaging, and we can accept customized packaging.

FAQ

Q:Can I Get A Sample For Testing?

A:Yes, We Can Provide Free Samples, But You Need To Pay For The Shipping Cost.

Q:Is It Safe On The Payment For Me As We Are The First Cooperation?

A:We Can Do The Trade Assurance , Which Will Guarantee Your Payment Safety, We Also Accept Other Safe Payment Way As You Want.

Q:Do You Accept Product Customization?

A:Yes, We Can Accept Material Customization, Specification Model Customization, Drawing Customization, Packaging Customization.

Q:Can I Put Our Logo On The Product?

A:Yes, We Can Provide You With Laser Engraving Logo And Sticker Logo For Free.

Q:What Is The Moq?

A:For Trial Order, We Can Sell Even One Piece

Q:How Long Is The Product Warranty Period?

A:One Year, If The Product Is Non-Artificially Damaged During The Warranty Period, We Can Provide You With A New Product For Free.

Q:How Long Is The Delivery Time?

A:If We Have Stock, We Will Ship Within 2 Days, If There Is No Stock, We Will Ship Within 5-7 Days.

Q:Do You Accept Oem/Odm Service?

A:Yes, We Can Produce Products According To Your Requirements.