What is Weld neck flange, Type, Application?

At JSFITTINGS, a leading industry forged steel flanges manufacturer and supplier based in China, we specialize in providing robust piping solutions for the oil and gas industry. Our expertise lies in producing high-quality weld neck flanges, alongside a comprehensive range of steel pipes and fittings.

What are Weld Neck Flanges?

Weld neck flanges are critical for creating secure connections in demanding industrial environments. Their distinctive design, featuring a long tapered hub, allows for a smooth transition from the flange to the pipe, ensuring exceptional strength and stress distribution. This makes them ideal for applications requiring utmost reliability.

Key Specifications & Capabilities:

Dimensions: From 1/2” to 24” and beyond, accommodating diverse project needs.
Pressure Classes: Ranging from Class 150 to Class 2500 (PN 2.5 to PN 250), designed for various pressure requirements.
Face Types: Available in Raised Face (RF) WN flanges and Ring Type Joint (RTJ) WN flange configurations.

Weld Neck Flange Types We Offer:

1. Standard Weld Neck Flanges:

Perfect for integration with butt weld fittings in general piping systems, offering flexibility across pressure classes and face types.

2. Long Weld Neck Flanges (LWN):

Also known as nozzle flanges, these are specifically engineered for pressure vessel and tank fabrication, providing a seamless, single-piece solution.

Weld Neck Flange Applications:

Our weld neck flanges are specifically designed for the most demanding operational conditions, ensuring minimal leakage and maximum integrity.

• Some common scenarios include:
• High-pressure systems
• Environments with wide temperature and pressure fluctuations
• High-temperature operations
• Handling volatile and hazardous fluids
• Cryogenic (very cold) conditions

And the WN flanges can also be used in critical infrastructure, including steam lines, oil, natural gas, and refined hydrocarbon pipelines, fire networks, and petrochemical facilities,etc.

Weld Neck Flange Materials:

We manufacture our weld neck flanges from a selection of top-grade materials, carefully chosen based on application requirements, including temperature, pressure, and fluid compatibility.

Our material options include:

• Carbon Steel: ASTM A105
• Alloy Steel: ASTM A182 (F11, F22)
• Stainless Steel: ASTM A182 (F304/F304L, F316/F316L)
• Duplex Steel: UNS S31803

Adherence to Global Standards:

Our manufacturing processes strictly comply with international standards to guarantee consistency, safety, and performance. We adhere to:

• ASTM A105 (Carbon Steel)
• ASTM A182 (Alloy and Stainless Steel)
• ASME B16.5 (Flange dimensions and specifications)
• ASME B16.47 (Large diameter flanges)
• BS 3293 (British Standards)
• DIN 2630 PN standards (European applications)

JSFITTINGS-Your Trusted Partner for Flange Solutions

At JSFITTINGS, we are committed to delivering products that meet and exceed industry expectations. Our weld neck flanges are a testament to our dedication to quality, reliability, and performance in critical applications.
Looking for dependable weld neck flanges or other piping components?
Contact us today to discuss your project requirements and discover how JSFITTINGS can be your preferred partner.

Email: admin@jsfittings.com
WhatsApp: +8618003119682