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Threaded Flange – Industrial Flange Manufacturer & Supplier
Product Overview
Threaded flanges are a type of pipe flange that connects to pipelines using internal threads, eliminating the need for welding. This makes them an ideal solution for applications where welding is not possible, not safe, or not cost-effective.
SHAANXI GOLD-STONE I/E CO., LTD. manufactures high-quality threaded flanges in carbon steel, stainless steel, and alloy steel, meeting international standards such as ASME B16.5, EN 1092-1, and GB/T series standards. Our products are widely used in global industrial piping systems requiring reliable, weld-free connections.
Key Features
· Weld-free connection using internal threads
· Easy installation and maintenance
· Suitable for low and medium pressure systems
· High sealing performance with proper thread engagement
· Available in multiple materials and standards
· Cost-effective solution for industrial piping
Key Applications
Oil & Gas Pipelines
Used in non-welded pipeline sections, instrumentation lines, and auxiliary systems.
Petrochemical Plants
Suitable for process piping systems where welding is restricted or not practical.
Power Generation Systems
Used in cooling water lines, auxiliary piping, and low-pressure systems.
Water Treatment Facilities
Applied in municipal and industrial water pipelines.
Industrial Pressure Piping
Used across factories, mechanical systems, and general piping installations.
Materials
Carbon Steel
· ASTM A105
· ASTM A350 LF2
High strength and cost-effective for general industrial use.
Stainless Steel
· ASTM A182 F304 / F304L
· ASTM A182 F316 / F316L
Excellent corrosion resistance for chemical and marine environments.
Alloy Steel
· ASTM A182 F11
· ASTM A182 F22
Suitable for high-temperature and medium-pressure applications.
Pressure Ratings
· Class 150
· Class 300
· Class 600
· Class 900
· Class 1500
· Class 2500
Face Types
RF – Raised Face
Most commonly used for general industrial sealing applications.
FF – Flat Face
Suitable for low-pressure systems and non-metallic gaskets.
RTJ – Ring Type Joint
Used in high-pressure and high-temperature critical service conditions.
Standards
· ASME B16.5
· ASME B16.47
· EN 1092-1
· GB/T Flange Standards
Advantages
· No welding required → faster installation
· Reduced hot-work risk in hazardous environments
· Easy maintenance and replacement
· Reliable sealing performance when properly installed
· Suitable for retrofit and maintenance projects
· Wide compatibility with industrial piping systems
Quality Control
All threaded flanges are manufactured under strict quality control procedures, including:
· Dimensional inspection
· Thread gauge verification
· Material chemical analysis
· Pressure and sealing tests
· Surface finish inspection
Third-party inspection available through SGS, Bureau Veritas, and other international agencies.
Packaging & Delivery
· Wooden cases or plywood pallets
· Anti-rust oil protection
· Thread protection caps
· Moisture-proof wrapping
· Custom export marking available
· MTC (Material Test Certificate) included
FAQ
What is a threaded flange used for?
A threaded flange is used to connect pipes without welding, making it suitable for systems where welding is not possible or not allowed.
What industries use threaded flanges?
They are widely used in oil & gas, petrochemical plants, power generation systems, water treatment, and industrial piping systems.
What standards are available?
Threaded flanges are manufactured according to ASME B16.5, EN 1092-1, and GB/T standards.
What materials are available?
Carbon steel, stainless steel, and alloy steel grades are commonly used depending on pressure and corrosion requirements.
Are threaded flanges suitable for high pressure?
They are generally used in low to medium pressure systems; for high-pressure applications, weld neck flanges are usually recommended.
Recommended Products
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· Slip-On Flanges
· Blind Flanges
· Socket Weld Flanges
· Plate Flanges
· Stainless Steel Flanges
· Carbon Steel Flanges
· Alloy Steel Flanges
· Pipe Fittings
Request a Quote
SHAANXI GOLD-STONE I/E CO., LTD. supplies high-quality threaded flanges for global industrial pipeline systems. Contact us for pricing, technical drawings, and customized solutions.
Send Inquiry to This Supplier
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