Are you in the market for long weld neck flanges and feeling overwhelmed by the options? You’re not alone! With numerous manufacturers in China, choosing the right factory can significantly impact your project’s success. By comparing the top factories, you can ensure quality, reliability, and cost-effectiveness. Imagine having the peace of mind that comes from knowing you’ve selected the best supplier for your needs. Ready to simplify your decision-making process? Join us as we explore the leading long weld neck flange manufacturers in China and help you make an informed choice!

China Superior Weld Neck Flange Manufacturer – flangeschina.com

Product Details: Weld Neck Flanges are high-quality flanges designed for butt welding to pipes, optimizing stress distribution and providing a durable connection.

Technical Parameters:
– Size: DN15-DN2000 (1/2-78 inch)
– Pressure Grades: PN2.5 to PN400, Class 150 to Class 2500

Application Scenarios:
– Chemical industry
– Construction and engineering projects

Pros:
– Highly durable and corrosion resistant
– Customizable according to international quality standards

Cons:
– May require specialized welding techniques
– Higher cost compared to other flange types

Long Neck Weld Flange ASME B16.5 – China Enfei Pipe

Product Details: Long Neck Weld Flange ASME B16.5 is an essential component in pipeline construction, forged from high-quality raw materials to ensure durability and resistance to various environmental factors.

Technical Parameters:
– Size: 1/2〞(DN15) to 60〞(DN1500)
– Class: 150LBS, 300LBS, 400LBS, 600LBS, 900LBS, 1500LBS, 2500LBS

Application Scenarios:
– Used in high-pressure and high-temperature pipeline systems.
– Applicable in various industries including oil and gas, chemical processing, and…

Pros:
– High corrosion resistance and durability due to quality materials.
– Wide range of sizes and pressure classes available.

Cons:
– Potentially high cost due to quality raw materials and manufacturing processes.
– Requires specific heat treatment processes to achieve desired properties.

China Long Welding Neck Flanges Suppliers, Manufacturers, Factory – Buy …

JIS B2220 Integral Flange,Long Weld Neck Flange | China Hebei Haihao …

Product Details: JIS B2220 Integral Flange, also known as Long Weld Neck Flange, manufactured by Hebei Haihao Flange Factory. Available in various materials including carbon steel, stainless steel, and alloy steel.

Technical Parameters:
– Nominal sizes range from 10A to 1500A depending on pressure ratings (5K, 10K, 16…
– Sealing faces available: raised face (RF), flat face (FF), ring type joint (RTJ)…

Application Scenarios:
– Used in piping systems for various industries including oil and gas, chemical pr…
– Suitable for high-pressure applications.

Pros:
– Manufactured according to various flange standards including JIS B2220.
– Wide range of materials and sizes available.

Cons:
– Limited information on specific applications.
– Potentially higher cost due to specialized manufacturing.

China Pipe Flanges Manufacturer | Chinasteelfittings.com

Product Details: China Pipe Flanges Manufacturer specializing in various standard and non-standard flanges and forgings.

Technical Parameters:
– Materials: Carbon Steel, Alloy Steel, Stainless Steel, Duplex Steel, Super Duple…
– Manufacturing Standards: ASTM, ASME, ANSI B16.5, B16.47A, B16.47B, B16.35, B16.4…

Application Scenarios:
– Used in high-pressure applications and piping systems.
– Applicable in various industries including oil and gas, construction, and manufa…

Pros:
– Wide range of materials and standards available.
– Experience in global supply to multiple regions.

Cons:
– Limited information on specific product dimensions.
– Potential variations in quality based on manufacturing standards.

China ANSI Long Welding Neck Flange Manufacturers Suppliers – Factory …

China NORSOK Carbon Steel Long Welding Neck Flanges Manufacturers …

Product Details: NORSOK Carbon Steel Long Welding Neck Flanges are produced with advanced technology and reliable quality, suitable for various industrial applications.

Technical Parameters:
– Material: Carbon Steel
– Manufacturing Standards: NORSOK

Application Scenarios:
– Boiler pressure vessels
– Petroleum and chemical industries

Pros:
– High rigidity and load-bearing capacity
– Reliable product quality and good service

Cons:
– Limited information on specific dimensions
– Potentially higher cost compared to standard flanges

Weld Neck Flat Face Flange,Long Weld Neck Flanges,Long Elbow With Kf …

Product Details: Long Neck Flange is designed for high-stress applications, providing reinforcement that standard weld neck flanges cannot. It is used in various industries including petrochemical, power generation, and refineries.

Technical Parameters:
– Supply Ability: 12,000 Ton/Year
– Packaging: Plywood Cases

Application Scenarios:
– Industrial pipelines
– High-pressure piping systems

Pros:
– Provides better reinforcement and rigidity
– Reduces stress concentrations at the base

Cons:
– Relatively expensive due to its design
– Requires more welding workload compared to standard flanges

Flange JIS B2220 10K,B16.5 welding neck flange dimensions,flangeolet …

China Long Weld Neck Forged Flange Manufacturer & Supplier | DHDZ

Product Details: Long Weld Neck Forged Flange Manufacturer in China. Typically used as anchors for water-mains or gas sources in larger pipe networks.

Technical Parameters:
– Size: 1/2″-160″, DN10~DN4000
– Pressure Class: 150~1200

Application Scenarios:
– Used in factories for water and gas distribution.
– Applicable in apartment buildings for plumbing systems.

Pros:
– Durable and reliable for high-pressure applications.
– Versatile with various facing and coating options.

Cons:
– May require specialized installation techniques.
– Higher cost compared to standard flanges.

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Frequently Asked Questions (FAQs)

1. What is a long weld neck flange?

A long weld neck flange is a type of flange that features a long tapered neck, which provides a smooth transition between the flange and the pipe. This design helps to reduce stress concentrations and is ideal for high-pressure applications.

2. Why should I choose a manufacturer in China for long weld neck flanges?

Manufacturers in China often offer competitive pricing, high production capacity, and a wide range of materials. Many factories adhere to international quality standards, ensuring you receive reliable products for your projects.

3. How can I ensure the quality of flanges from a Chinese manufacturer?

To ensure quality, look for manufacturers with certifications like ISO 9001. Request samples, check customer reviews, and consider visiting the factory if possible. Establishing clear communication about your specifications is also crucial.

4. What materials are commonly used for long weld neck flanges?

Common materials include carbon steel, stainless steel, and alloy steel. The choice of material depends on the application, pressure requirements, and environmental conditions. Discuss your needs with the manufacturer for the best options.

5. What is the typical lead time for ordering long weld neck flanges from China?

Lead times can vary based on the manufacturer and order size, but typically range from 4 to 12 weeks. It’s best to discuss timelines upfront and factor in shipping times to ensure your project stays on schedule.