Pipe Fittings
ASME B16.9 and B16.11 compliant fittings engineered for seamless integration into pressure piping systems. Elbows, tees, reducers, and couplings in butt-weld and socket-weld configurations.
Request Fittings QuoteComplete Fitting Type Range
Every standard fitting type for piping system design, from simple elbows to complex multi-way intersections.
45° Elbows
Precision-engineered 45-degree elbows for directional changes in piping systems. Minimizes turbulence and pressure drop compared to multiple 90-degree connections.
Standards:
ASME B16.9, B16.11
Configurations:
Butt-weld, Socket-weld, Threaded
90° Elbows
Industry-standard 90-degree elbows for 90-degree directional changes. Available in short radius (1D), long radius (1.5D), and extra long radius configurations.
Standards:
ASME B16.9, B16.11
Configurations:
Butt-weld, Socket-weld, Threaded
Tees
Equal and reducing tees for branch line connections. Engineered reinforcement at the branch junction to handle complex pressure conditions.
Standards:
ASME B16.9, B16.11
Configurations:
Butt-weld, Socket-weld, Threaded
Reducers
Concentric and eccentric reducers for controlled diameter transitions. Smooth flow paths minimize turbulence and erosion potential.
Standards:
ASME B16.9
Configurations:
Butt-weld, Socket-weld
End Caps
Hemispherical and flat end caps for permanently sealing pipe ends. Full pressure boundary integrity for isolation and terminal applications.
Standards:
ASME B16.9, B16.11
Configurations:
Butt-weld, Socket-weld, Threaded
Couplings
Straight and reducing couplings for simple diameter changes and pipe joining. Compact design suitable for space-constrained installations.
Standards:
ASME B16.11
Configurations:
Socket-weld, Threaded
Unions
Disconnectable unions for modular piping systems. Allows disassembly of connections without disturbing the rest of the piping run.
Standards:
ASME B16.11
Configurations:
Socket-weld, Threaded
Crosses
Four-way branch connections for multi-directional piping layouts. Engineered branch reinforcement for complex distribution systems.
Standards:
ASME B16.9, B16.11
Configurations:
Butt-weld, Socket-weld, Threaded
Weld Type Options
Multiple welding configurations available to match your installation requirements and piping system design.
Butt-Weld Fittings
Direct end-to-end welding for full-penetration, continuous-bore connections. Used for critical high-pressure and high-temperature applications.
- ✓ Full-bore alignment
- ✓ Maximum pressure rating
- ✓ Superior reliability
- ✓ ASME B16.9 standard
Socket-Weld Fittings
Fitting socket receives the pipe end with fillet weld connection. Compact design for space-constrained applications and small-bore systems.
- ✓ Compact installation
- ✓ Easier alignment
- ✓ Suitable for small bores
- ✓ ASME B16.11 standard
Threaded Fittings
Internal threads allow connection to NPT or NPTF threaded pipe without welding. Convenient for modular systems and instrumentation applications.
- ✓ No welding required
- ✓ Quick installation
- ✓ Easy disassembly
- ✓ Instrumentation service
Schedule Selection Guide
Wall thickness designations defined by ASME B36.10 / B36.19. Pressure rating depends on size, material, and temperature in addition to schedule.
| Schedule | Wall Thickness | Typical Applications | Available Materials |
|---|---|---|---|
| 10 | Light wall | Low pressure, utility service | Carbon, Stainless |
| 20 | Light wall | Standard industrial | Carbon, Stainless |
| 40 | Standard (STD) | General service piping | Carbon, Stainless, Alloy |
| 60 | Heavy wall | Higher pressure service | Carbon, Stainless, Alloy |
| 80 | Extra strong (XS) | High pressure service | Carbon, Stainless, Alloy |
| 120 | Heavy wall | High pressure service | Carbon, Stainless, Alloy |
| 160 | Heavy wall | High pressure service | Carbon, Stainless, Alloy |
| XXS / XXH | Double extra strong | Critical high pressure applications | Carbon, Stainless, Alloy |
Material Specifications
Fittings supplied to ASTM standards for carbon steel, stainless steel, and alloy steel applications.
Carbon Steel
Typical Grades:
ASTM A234 Grade WPB, WPC
Applications:
General service
Stainless Steel
Typical Grades:
ASTM A403 WPF304, WPF316
Applications:
Corrosive environments
Alloy Steel
Typical Grades:
ASTM A234 WP11, WP22, WP91
Applications:
High-temperature service
Size & Pressure Ratings
Fittings available across industry-standard sizes with pressure ratings defined by ASME specifications.
Available Sizes
Complete range of standard NPS (Nominal Pipe Size) diameters from instrumentation to large-bore applications.
- 1/4" to 1/2" (instrumentation)
- 3/4" to 2" (standard industrial)
- 2-1/2" to 12" (large bore)
- 14" to 24" (extra-large)
Pressure Ratings
Allowable pressure depends on outside diameter, wall thickness, material allowable stress, and design temperature per ASME B31.3 (Barlow / pipe design equations).
- Rating varies with NPS, schedule, and material
- Temperature derating per ASME tables
- Stainless and alloy grades alter allowable stress
- Consult ASME B31.3 for service ratings
Temperature Service
Temperature service capabilities vary by material. High-temp alloys available for elevated service applications.
- Carbon Steel: to 650°F
- Stainless: to 850°F
- Alloy Steel: to 1050°F
- Custom alloys available
Standards & Quality Assurance
All fittings supplied to applicable ASME standards with comprehensive quality testing and documentation.
Manufacturing Standards
- ✓ASME B16.9 - Wrought Steel Butt Welding Fittings
- ✓ASME B16.11 - Forged Fittings, Socket Weld and Threaded
- ✓ASTM A234 - Wrought Steel Piping Fittings
- ✓ASTM A403 - Stainless Steel Piping Fittings
Quality Verification
- ✓Material mill certificates with chemistry verification
- ✓Hydrostatic pressure testing of sample fittings
- ✓Dimensional inspection per ASME standards
- ✓Full traceability documentation on request
Complete Piping Solutions
Flanges
Pair fittings with flanges for complete bolted connections and equipment interface points.
View Flanges →Custom Solutions
Non-standard configurations and custom fittings supplied to your exact specifications.
View Custom Options →Standards Reference
Technical references for ASME B16.9 and B16.11 fitting specifications and requirements.
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