Product Introduction
Weld Neck Flange (WN flange) is a common pipeline connection component, mainly used in medium and high pressure pipeline systems. It is connected to pipelines or equipment through butt welding and has high strength and good sealing performance. If only one bored flange style existed in modern applications, the weld neck would be your flange of choice.
We supply a complete selection of stainless steel, duplex and alloy steel cross fittings in diverse dimensions, tailored to meet the demands of different piping systems.
Prodection Details
Every detail is precisely manufactured to ensure smooth welding and perfect alignment.
Abundant stock for quick delivery: standard sizes are kept in inventory to reduce lead time.
We have our own independent production line and accept custom orders.
From raw materials to final inspection, every process is strictly controlled to ensure consistent quality.
Product Packaging
Deliver, Shipping And Serving
We provide tailored packaging solutions and versatile logistics arrangements, ensuring that all goods reach their destination securely and punctually.
Product Parameter (Specification)
|
Product Name |
Weld Neck Flange |
|
Size |
½ inch (15 NB) to 48 inch (1200 NB) |
|
Kind |
150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs, DIN standard ND-6, 10, 16, 25, 40, etc. |
|
Major |
According to the drawings |
|
Standard |
ANSI B16.5, ANSI B16.47, ANSI B16.36, ANSI B16.48, BS 4504, EN1092, UNI 2277/2278, DIN, IS, SABS1123, GOST-12820 |
|
Coating/ surface treatment |
Rust-preventive paint, black paint, yellow transparent paint, galvanized, hot and cold galvanized |
|
Flange face type |
Flat (FF), raised (RF), ring connector (R]T) |
|
Size |
ANSI B16.5, ANSI B16.47 series A & B, MSS SP44, ASA, API-605, AWWA, custom drawings |
|
Use/ Application |
Oil fields, coastlines, water systems, shipbuilding, natural gas, electricity, pipeline engineering, etc. |
What is a welded neck flange?
A welded neck flange is a type of pipe flange characterized by a long, 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 the flange, reduces stress concentration, and enhances structural integrity. Welded neck flanges are commonly used in critical applications requiring robust and leak-proof connections.
What are the advantages of welded neck flanges?
The tapered neck allows for a uniform distribution of mechanical stress, making these flanges ideal for high-pressure and high-temperature environments. Welded joints provide seamless, leak-proof connections, which are particularly crucial in hazardous or critical fluid systems.
When should I use a weld neck flange?
High-pressure systems, such as oil and gas pipelines, where connection integrity is paramount; high-temperature applications, such as steam systems in power plants or chemical processing, where stress resistance is critical; and high-vibration environments, such as reciprocating pumps, compressors, or turbines, where flanges need to resist motion and fatigue.
When should I not use weld neck flanges?
Avoid welding neck flanges in low-pressure or non-critical systems, where simpler and cheaper alternatives (such as sliding or lap flanges) are sufficient. In cost-sensitive projects, welding neck flanges results in higher costs due to the precise welding, labor, and rigorous inspection required.
Company Introduction
Jiangsu Tisco Equipment Co., Ltd. is a comprehensive valve company integrating manufacturing and trading. We specialize in producing valves and processing stainless steel products such as ball valves, gate valves, butterfly valves, globe valves, as well as pipes, plates, profiles, stems, etc. In addition, copper, aluminum, titanium, and other alloy steels, such as Inconel, are also within our range. Due to our commitment to high quality, competitive prices, and excellent after-sales service, we have established long-term and stable relationships in domestic and international markets.
Our Advantages
- 24-hour online service
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Custom order solutions are on offer, with top quality guaranteed at reasonable pricing.
- We can help customers solve all engineering problems related to valves and fittings
FAQ
Q: Do you own your own factory?
A: Yes, we do. We have our own factory, and we can provide stable inventory, competitive prices, and good quality.
Q: Do you offer OEM or ODM services?
A: Yes, OEM and ODM services are available, including customization of materials, sizes, logos, and packaging.
Q: What payment methods do you accept?
1) 30% T/T prepayment and balance against copy of B/L.
2) 30% T/T prepayment and letter of credit balance.
Q: What is the delivery time?
A: 7-10 days after receiving the deposit.
Q: Why did you choose our company?
A: A). We have more stable inventory, competitive prices, and good quality.
B). We have more genuine experience in international trade.
C). We can help customers solve all engineering problems related to valves and fittings.
Q: Can you send a sample for inspection?
A: Yes, we can. We can send you samples free of charge.
Q: Can you manufacture products according to our requirements?
A: Yes, we will strictly follow your requirements, such as packaging method, product length, product handling etc.
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