High Quality Weld Neck Flanges

Introduction of Weld Neck Flanges

The characteristic of a weld neck flange is a long and tapered neck that gradually extends from the flange face to the bottom of the pipe. This design provides a smooth transition between the pipe and flange, reducing stress concentration and enhancing structural stability. Their tapered neck can effectively distribute mechanical stress, making these flanges a ideal choice for high-temperature and high-pressure environments. Weld neck flanges are connected with the pipe by welded process, their unique welded joint provides a seamless, leak-proof connection, especially in high-pressure fluid systems.

 

Advantages of Welded Neck Flanges

1. Excellent sealing performance: Compared with other flanges, weld neck flanges have more reliable sealing performance, not easy to leak or fault.

2. Sturdy and durable: Weld neck flanges are made of high strength materials,with high strength and thermal stability. Which can be used for a long time.

3. Strong environment adaptability: Weld neck flange can ensure stable operation of pipelines in strong vibration environments. Which is suitable for various complex working conditions.

 

Specification

Product name	Weld Neck Flanges
Place of origin	China
Standard	ASME/ANSI B16.5, EN1092-1, DIN2633, etc.
Material grade	Carbon steel: ASTM A105, ASTM A694 F42-F70 ; P235GH, P245GH, P250GH, P265GH, P280GH ; S235JR, etc.
	Stainless steel: ASTM A182 F304/304L, F316/316L, F321, etc.
Size range	1/2"-24" or DN15-DN3000
Pressure	150LB, 300LB, 400LB, 600LB, 900LB, 1500LB, 2500LB, etc.
Sealing type	Flat face(FF), Raised face(RF), Ring joint(RTJ)
Connection method	Butt welding
Surface	Bare, Black painting or as per clients' requirements

 

Product show

We can provide weld neck flanges of different standards and materials, such as carbon steel, stainless steel, and alloy steel, etc. The dimensions of flanges can be customized according to clients' requirements.

 

Packing

All flanges will be wrapped with plastic films or woven bags, and then put into wooden cases for protection.

 

Applications

1. High-pressure pipeline systems: Weld neck flanges are commonly used for connecting of petroleum and natural gas pipeline. Their good sealing performance and leak-proof provide a stable connection.

2. High-temperature applications: Steam systems in power plants or chemical processing, where high-temperature resistance is critical.

3. High-vibration environments: Weld neck flanges have high strength and structural integrity, which can effectively resist the impact caused by high frequency vibration.

 

FAQ

Q: What is your payment terms?

A: One is 100% T/T, another one is 30% prepayment and the balance payment of BL before shipment.

Q: How is the quality of your flanges?

A: We promise to provide high quality products to clients. Our flanges mainly come from other well-known factories, and each one is carefully inspected before delivery.

Q: Can you deliver the goods on time?

A: We have sufficient inventory to accept your urgent order and can rapidly pick the goods up from other factories. The delivery is very fast.

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