weld neck pipe flange

Weld Neck Pipe Flanges: Premium Quality for Industrial Applications

Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd is a leading weld neck pipe flange manufacturer and supplier. With over 39 years of expertise, our 35,000 m² facility produces 30,000 tons of high-quality fittings annually. Our products meet rigorous ISO 9001, CE, and GOST-R certifications, ensuring reliable performance for oil & gas, shipbuilding, and construction projects worldwide.

Key Features

• Superior strength and durability
• Precise dimensional accuracy
• Excellent resistance to high pressure and temperature
• Uniform wall thickness for enhanced safety
• Smooth bore reduces turbulence and pressure drop

Product Types

We offer a comprehensive range of the products:

1. Raised Face (RF) Weld Neck Flanges
2. Flat Face (FF) Weld Neck Flanges
3. Ring Type Joint (RTJ) Weld Neck Flanges
4. Long Weld Neck Flanges
5. Reducing Weld Neck Flanges

Available in various sizes (1/2" to 60" NPS) and pressure classes (150# to 2500#) to suit your specific requirements.

Materials & Grades

Our products are manufactured using premium-quality materials:

• Carbon Steel: ASTM A105, A350 LF2
• Stainless Steel: 304/304L, 316/316L, 321, 347
• Duplex Steel: F51 (2205), F53 (2507)
• Alloy Steel: F11, F22, F91
• Nickel Alloys: Inconel, Incoloy, Monel

Custom material options available upon request.

Surface Treatment

We offer various surface treatments to enhance corrosion resistance and aesthetics:

• Black painting
• Yellow painting
• Galvanization (hot-dipped or electro-galvanized)
• FBE (Fusion Bonded Epoxy) coating
• PTFE coating
• Phosphating

Applications

Our weld neck pipe flanges are widely used in:

• Oil and gas pipelines
• Chemical processing plants
• Power generation facilities
• Petrochemical refineries
• Water treatment systems
• Shipbuilding and marine applications
• HVAC systems
• Food and beverage processing

Packaging & Delivery

• Standard export packaging: Wooden cases or pallets
• Custom packaging available upon request
• Bulk orders accommodated with dedicated logistics support
• Fast and reliable global shipping

Quality Control

At Hebei Jinsheng, we prioritize quality at every stage:

1. Raw material inspection and testing
2. In-process quality checks
3. Dimensional verification
4. Non-destructive testing (NDT)
5. Hydrostatic pressure testing
6. Final visual inspection

Our commitment to quality ensures that every product meets or exceeds industry standards.

Certificates

Our products are certified by:

• ISO 9001:2015
• CE (PED 2014/68/EU)
• GOST-R
• API 6A
• NORSOK
• DNV-GL

These certifications demonstrate our dedication to producing high-quality, compliant products for global markets.

FAQ

Q: What is the difference between a weld neck flange and a slip-on flange?
A: Weld neck flanges provide superior strength and are ideal for high-pressure applications. They're welded directly into the pipe, creating a seamless connection. Slip-on flanges are easier to install but offer less structural integrity.

Q: Can you provide custom products?
A: Yes, we specialize in custom fabrication. Contact our team with your specific requirements, and we'll work closely with you to deliver the perfect solution.

Q: What is the typical lead time for bulk orders?
A: Lead times vary based on order volume and specifications. Generally, we can fulfill bulk orders within 2-4 weeks. For urgent needs, we offer expedited production options.

Q: Do you provide material certificates with your products?
A: Absolutely. We provide comprehensive material test reports (MTRs) and certificates of conformity with every order to ensure full traceability and compliance.

Contact Us

Ready to elevate your industrial projects with our premium weld neck pipe flanges? Our expert team is here to assist you:

• Email: admin@chinajsgj.com
• Phone: +8618003119682

Trust Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd for all your product needs. With our commitment to quality, extensive product range, and customer-focused approach, we're your ideal partner for reliable industrial piping solutions.