Pipeline Flanges Manufacturer | Weld Neck, Blind & Slip On Flanges | SHAANXI GOLD-STONE
Product Spotlights
Pipeline Flanges for Oil & Gas Industry
Pipeline flanges are critical components used to connect pipes, valves, pumps, pressure vessels, and other equipment within industrial piping systems. They provide a secure and detachable connection that simplifies installation, inspection, maintenance, and system expansion.
In demanding oil and gas environments, flanges must withstand high pressure, temperature fluctuations, vibration, and corrosive media while maintaining reliable sealing performance.
SHAANXI GOLD-STONE I/E CO., LTD. is a professional manufacturer and supplier of industrial pipeline flanges, providing high-quality flange solutions for oil & gas, petrochemical, power generation, marine, and industrial processing projects worldwide.
Product Types
Weld Neck Flange (WN Flange)
Weld neck flanges feature a long tapered hub that transfers stress smoothly into the pipe wall.
Features
· Excellent strength and fatigue resistance
· Suitable for high-pressure applications
· Ideal for high-temperature service
· Superior structural integrity
Applications
· Oil & gas transmission pipelines
· Refineries
· Offshore platforms
· Power plants
Blind Flange (BL Flange)
Blind flanges are used to close the ends of pipelines, pressure vessels, and equipment openings.
Features
· Reliable pressure containment
· Easy access for maintenance
· Suitable for system isolation
· Strong sealing performance
Applications
· Pipeline shutdown systems
· Pressure vessel closures
· Maintenance access points
Slip On Flange (SO Flange)
Slip on flanges slide over the pipe and are welded internally and externally.
Features
· Easy installation
· Cost-effective solution
· Good alignment capability
· Suitable for medium-pressure systems
Applications
· Water treatment facilities
· Chemical plants
· Industrial utility pipelines
Socket Weld Flange (SW Flange)
Socket weld flanges are designed for small-diameter, high-pressure piping systems.
Features
· Smooth flow characteristics
· Strong welded connection
· Compact design
· Excellent pressure resistance
Applications
· Hydraulic systems
· Steam pipelines
· High-pressure process lines
Threaded Flange
Threaded flanges are connected without welding and are suitable for specific low-pressure applications.
Features
· Easy assembly and disassembly
· No welding required
· Reduced installation costs
Applications
· Utility systems
· Compressed air systems
· Temporary pipeline installations
Available Materials
SHAANXI GOLD-STONE supplies flanges in various materials:
Carbon Steel
· ASTM A105
· ASTM A350 LF2
· ASTM A694
Stainless Steel
· ASTM A182 F304
· ASTM A182 F304L
· ASTM A182 F316
· ASTM A182 F316L
Alloy Steel
· ASTM A182 F11
· ASTM A182 F22
· ASTM A182 F91
Duplex Stainless Steel
· F51
· F53
· F55
Custom materials are available upon request.
Flange Standards
Our products comply with internationally recognized standards:
· ASME B16.5
· ASME B16.47
· ANSI Standards
· DIN Standards
· EN 1092-1
· ASTM Material Specifications
· MSS Standards
These standards ensure global compatibility and reliable engineering performance.
Pressure Ratings
Available pressure classes include:
· Class 150
· Class 300
· Class 600
· Class 900
· Class 1500
· Class 2500
Custom dimensions and specifications can be manufactured according to project requirements.
Applications
Pipeline flanges are widely used in:
Oil & Gas Industry
· Crude oil pipelines
· Natural gas transmission systems
· Offshore platforms
· LNG facilities
Petrochemical Industry
· Refining units
· Chemical processing plants
· Storage terminals
Power Generation
· Steam systems
· Cooling water pipelines
· Boiler systems
Industrial Processing
· Water treatment facilities
· Mining operations
· Manufacturing plants
Marine & Shipbuilding
· Seawater piping systems
· Engine room pipelines
· Offshore engineering projects
Quality Assurance
Every flange undergoes strict quality control procedures:
· Raw material verification
· Dimensional inspection
· Chemical composition testing
· Mechanical property testing
· PMI testing (Positive Material Identification)
· Ultrasonic Testing (UT)
· Magnetic Particle Testing (MT)
· Hydrostatic testing upon request
All products are fully traceable and supplied with inspection certificates.
Why Choose SHAANXI GOLD-STONE
· More than 20 years of export experience
· International quality standards
· Competitive factory-direct pricing
· Custom manufacturing capability
· Fast delivery schedules
· Global project supply experience
· Professional technical support
Recommended Products
· Weld Neck Flanges
· Blind Flanges
· Slip On Flanges
· Socket Weld Flanges
· Threaded Flanges
· Carbon Steel Flanges
· Stainless Steel Flanges
· Pipe Elbows
· Pipe Tees
· Pipe Reducers
· ASME B16.9 Pipe Fittings
Request a Quote
Looking for a reliable pipeline flange supplier for your next oil & gas or industrial project?
SHAANXI GOLD-STONE I/E CO., LTD. provides high-quality flange products manufactured to international standards with worldwide shipping support. Contact our sales team today for technical assistance and competitive quotations.
Send Inquiry to This Supplier
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