12 inch weld neck flange

12 Inch Weld Neck Flange: Premium Quality for Industrial Applications

Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd is a leading 12 inch weld neck flange manufacturer and supplier. With 39 years of expertise, our advanced 35,000 m² facility produces 30,000 tons of high-quality fittings annually. Our products meet stringent ASTM/EN standards, backed by ISO 9001, CE, and PETROBRAS certifications. We deliver unmatched quality and reliability for oil & gas, shipbuilding, and construction sectors worldwide.

Key Features

• Precision-engineered for optimal performance
• Exceptional strength and durability
• Uniform wall thickness for consistent pressure ratings
• Seamless transition between pipe and flange
• Superior resistance to high-pressure and temperature conditions

Product Types

We offer a comprehensive range of the products:

• Class 150 to Class 2500
• Raised Face (RF) and Ring Type Joint (RTJ) facings
• Slip-on and blind configurations available
• Custom designs to meet specific project requirements

Materials & Grades

Our products are available in various materials:

• Carbon Steel: ASTM A105, A350 LF2
• Stainless Steel: 304/304L, 316/316L, 321, 347
• Alloy Steel: F11, F22, F91
• Duplex and Super Duplex: F51, F53, F55
• Nickel Alloys: Inconel, Incoloy, Monel

Surface Treatment

We offer multiple surface treatment options:

• Anti-corrosion painting
• Hot-dip galvanization
• Powder coating
• Pickling and passivation for stainless steel
• Custom coatings for extreme environments

Applications

Our 12 inch weld neck flanges are widely used in:

• Oil and gas pipelines
• Petrochemical processing plants
• Power generation facilities
• Water treatment systems
• Chemical manufacturing
• Offshore platforms
• Refinery equipment

Packaging & Delivery

• Individual plastic wrapping and wooden case protection
• Bulk packaging available for large orders
• Custom packaging solutions to meet specific requirements
• Global logistics network ensures timely delivery
• Full traceability from production to delivery

Quality Control

We maintain rigorous quality control measures:

• 100% visual and dimensional inspection
• Non-destructive testing (NDT): Ultrasonic, magnetic particle, and dye penetrant
• Positive Material Identification (PMI)
• Hydrostatic pressure testing
• Third-party inspection services available

Certificates

Our products are certified to meet industry standards:

• ISO 9001:2015 Quality Management System
• API 6A and 6D for oil and gas applications
• PED 2014/68/EU for pressure equipment
• NORSOK M-650 for offshore installations
• NACE MR0175/ISO 15156 for sour service environments

FAQ

Q: What is the lead time for a bulk order of the products?
A: Our standard lead time is 2-4 weeks, depending on quantity and specifications. For urgent orders, we offer expedited production options.

Q: Can you provide custom material certifications?
A: Yes, we provide full material traceability and can accommodate specific certification requirements, including 3.1 certificates and NACE compliance documents.

Q: Do you offer flanges with non-standard dimensions?
A: Absolutely. Our advanced manufacturing capabilities allow us to produce custom products to meet your exact specifications.

Q: What is your minimum order quantity for the products?
A: While we specialize in bulk orders, we can accommodate smaller quantities. Please contact us for specific pricing and availability.

Q: How do you ensure consistent quality across large production runs?
A: Our ISO 9001-certified quality management system, coupled with advanced automation and rigorous testing, ensures consistent high quality for every product we produce.

Contact Us

Ready to source premium 12 inch weld neck flanges for your next project? Our team of experts is here to assist you with product selection, technical support, and competitive pricing.

Email: admin@chinajsgj.com
Phone: +8618003119682

Trust Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd for all your industrial flange needs. With our commitment to quality, competitive pricing, and exceptional customer service, we're your ideal partner for the products and beyond.