Swivel Ring Flange
Rotational Flexibility for Pipeline Connections
Two-piece forged construction with rotating ring for enhanced installation flexibility
Overview
The SWIVEL RING FLANGE is of two piece construction consisting of a heavy forged welding hub with a rotating forged ring that serves as a mating flange to a Weld Neck or other flange.
It has a Retaining Ring to secure the Welding Hub to hold the Rotating Ring in position. These versatile flanges are utilized in many applications and are used extensively in offshore piping where they solve the issues associated with the alignment of bolt holes during subsea flange installation.
Construction Components
Three key components work together to provide rotational flexibility and secure connection
Heavy Forged Welding Hub
Robust welding hub provides secure connection to pipeline system
Rotating Forged Ring
Serves as mating flange to Weld Neck or other standard flanges
Retaining Ring
Secures welding hub and holds rotating ring in proper position
Ratings & Standards
The pressure-temperature ratings and basic dimensions (OD - bolt circle - facing - number and size of bolts) of Swivel Ring Flanges, in Class 150 through Class 2500, are identical to ASME/ANSI B16.5 and MSS-SP44 Flanges and will readily mate to a standard weld neck flange.
Ring type joints (RTJ), raised face, flat face and other facings are furnished as required. Sizes up through 60" including flanges to mate to ASME B16.47 dimensions are available.
Class 150
285 psi
Standard pressure applications
Class 300
740 psi
Medium pressure systems
Class 600
1480 psi
High pressure applications
Class 900
2220 psi
Very high pressure systems
Class 1500
3705 psi
Ultra-high pressure applications
Class 2500
6170 psi
Maximum pressure systems
Standards Compliance
Manufactured to meet the most stringent industry standards and specifications
Materials
Standard materials with options for higher yield requirements and custom specifications
A105
Standard carbon steel forging material
Features:
- Standard material
- Additional thickness at welding end
- Reliable performance
A694
High-yield strength carbon and alloy steel forgings
Features:
- Enhanced strength
- Superior performance
- Custom specifications
A707
Alloy steel flanges for high-temperature service
Features:
- High-temperature service
- Alloy steel construction
- Critical applications
Additional thickness is provided at the welding end to compensate for higher yield pipe. These flanges can be furnished in higher yield materials and are also supplied to customer specifications.
Facing Options
Multiple facing options available to meet specific application requirements
Ring Type Joints (RTJ)
Metal-to-metal seal for high-pressure applications
Raised Face
Standard raised face for gasket sealing
Flat Face
Flat sealing surface for specific applications
Applications
Versatile solutions for demanding pipeline connection requirements
Offshore Piping Systems
Solves bolt hole alignment issues during subsea flange installation
Pipeline Connections
Versatile connection solution for various pipeline applications
Subsea Installations
Critical for underwater pipeline connections and maintenance
High-Pressure Systems
Reliable performance in demanding pressure applications
Technical Specifications
Comprehensive specifications for reliable flange connections
Size Range
Up to 60" diameter
Pressure Classes
Class 150 through Class 2500
Standards
ASME/ANSI B16.5, MSS-SP44, ASME B16.47
Construction
Two-piece forged design
Standard Material
A105 (42,000 psi min yield)
Optional Materials
A694, A707, Custom specifications
Quality Assurance
TUBE TURNS® Products is fully qualified to provide comprehensive in-house testing and examination services
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Technical Literature
Download comprehensive documentation for Swivel Ring Flange
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