Factory Manufacture DIN ANSI JIS Standard 304 316 304L 316L Stainless Steel Weld Neck Flange

• Customization: Available
• Standard: ANSI, DIN, GB, JIS, GOST, BSW
• Type: Welding Flange
• Model NO.: Welding Neck Flange
• Material: Stainless Steel
• Structure: Round
• Connection: Welding
• Manufacturing Way: Forging
• Name: Welding Neck Flange
• Keyword: Steel Flange
• Surface: Anti-Rust Oil
• Process: Forging+Machining+Heating Treatment
• Application: Gas Oil Water System
• Service: OEM ODM
• Trademark: Huazhan
• Origin: Shanxi
• Production Capacity: 5000ton/Year

Product Description

Huazhan Steel Weld Neck Flange

Product Description

A weld neck flange, also called a tapered hub flange or high-hub flange, is a kind of flange that can relocate stress to the pipes, ensuring a decrease in high-stress concentration at the bottom of the flange. There are two welding neck flanges designs -the first type is used with wipes while the second, longer type cannot be used with pipes but with a process plant. The weld neck flange comprises of a round fitting that extends beyond the rim of the circumference. These flanges, typically manufactured from forging, are actually welded to pipes.

The rim has numerous holes drilled into it that enables the flanged to be attached to a bolted flange. This design is far better because of the structural valve.

Material	Carbon steel	Q235 ,P250GH,20#
	Stainless steel	SS304/304L, SS316/316L
Standard	ANSI	Class 150 Flanges-Class 2500 Flanges
	DIN	6Bar 10Bar 16Bar 25Bar 40Bar
	JIS	5K Flanges-20K Flanges
	UNI	6Bar 10Bar 16Bar 25Bar 40Bar
	EN	6Bar 10Bar 16Bar 25Bar 40Bar
TYPE	1.Welding neck Flange
	2.Slip on
	3.Blind flange
	4.Threaded flange 8.Flat flange
	5.Flat flange
Surface	Anti-rust oil, Black paint, Yellow paint,hot-dipped Galvanized,electrical galvanized
Connection	Welding, Threaded
Technical	Forged, Casting
Size	DN10-DN3600
Package	1.Standard export packaging
	2.As Customers' Requirements
Applications	Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry etc.

Characteristics of welding neck flanges:
These flanges are distinguished by having a long conical neck, the end of which is welded to the connecting pipe. The inside diameter of the pipe is equal to that of the flange, providing a conduit of generally constant cross-section and no interruptions or turbulence in the gases/liquids flowing through the pipe. Welding neck flanges provide high load strength along with even stress distribution.
Attention must be paid to the junction between the flange and the pipe to be welded on in order to avoid possible interruptions in high speed flows.

Why use a welding neck flange?
WN flanges are intended for activities involving high pressure and extreme conditions (cold or heat), flammable or corrosive contents, etc., and, above all, environments where leakage must be minimal or almost non-existent. They are used in order to  minimize the number of welds on small parts while helping to reduce corrosion of the junction itself.

They are used in steam lines; oil, natural gas and refined hydrocarbon lines; fire networks; petrochemical facilities, etc.

Packaging & Shipping

Company Profile

Huazhan is engaged in Industrial Supplies especially Pipe Flanges including Blind Flange, Orifice Flange, Lap Joint Flange,
Slip-On Flange, Socket Weld Flange, Threaded Flange, Weld Neck Flange and more. High quality and competitive flanges made by Huazhan are used for a variety of applications, mainly in petroleum & natural gas transportation, water treatment, energy generating, chemical producing and mine processing industries pipeline. We stock a wide range of Flanges in various materials, sizes and specifications, meeting quality standards such as ISO, API, ANSI, BS, JIS, UNI, MSS, SP, etc.

We are continuously developing innovative technology and trying to maximize customer satisfaction. For any Flanges needs you may have, please send us your inquiries. We always reply within 24 hours.

Certification:
Service:

* Provide 7 * 24-hour service. Feel free to contact us by phone, email, instant messaging and social media.
* After receiving your inquiry, reply within 8 hours, and provide the price plan within 24 hours.

* Review and monitor project details and progress at no cost by a professional team of sales, engineers
and QC personnel.
* In the cost, production, inspection, packaging, delivery and other aspects to provide a full range of intimate services.
* Provides professional support and assurance at all stages of sales.

FAQ

1. What's your terms of payment?
30%T/T as the upfront deposit, 70% before delivery, We will show you the photos and package before you pay the balance.
 

2. What's the terms of delivery?
EXW, FOB, CFR, CIF
 

3. What's the terms of packing?

Generally,we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.
 

4. What's your delivery time?
For stocks, we could transport the goods to loading port within 7 work days after we received the deposit.For production period, it usually takes about 15 days to 30 days after we received the deposit.
 

5. Could you produce according to the samples?
Yes, we can customer-made by your samples or technique drawings, we can build the mold and fixtures.
 

6. How could you guarantee your products quality?
Each piece of products is manufactured by certified workshops, inspected by us piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.