Pipe Fittings
Complete range of ASME-compliant fittings for direction changes, size transitions, and branch connections in industrial piping systems
Comprehensive Fitting Solutions
Pipe fittings are essential components that connect piping sections, enable directional changes, distribute flow, and reduce pipe sizes. ApiFlange provides a complete selection of pressure fittings supplied to ASME B16.9 and other international standards.
All our fittings are engineered with optimized flow paths to minimize pressure drop and turbulence. Available in carbon steel, stainless steel, alloy steel, and specialty materials, our fittings are suitable for low-pressure utilities to high-pressure critical service applications.
Standards & Certifications
Quick Facts
20+ Types Available
Elbows, tees, reducers, caps, crosses, and specialty fittings
All Pressure Classes
Class 150 through Class 2500 per ASME
Fast Lead Times
Standard inventory keeps your projects moving
Material Flexibility
Carbon, stainless, alloy, and specialty metals
Fitting Types
Elbows
45° and 90° elbows for directional changes in piping systems. Available in long radius and short radius designs for all pressure classes.
Sizes: 0.5" to 24"
Tees
Straight and reducing tees for branch connections. Engineered for equal and unequal flow distribution in complex piping networks.
Sizes: 0.5" to 24"
Reducers
Concentric and eccentric reducers for pipe size transitions. Optimized flow characteristics and pressure retention.
Sizes: 0.5" to 24"
Caps & Plugs
Hemispherical and flat caps for line termination. Threaded and socket weld designs for all pressure requirements.
Sizes: 0.5" to 24"
Grooved Piping
Quick-connect grooved couplings and fittings for rapid assembly. Ideal for modular systems and field modifications.
Sizes: 0.5" to 12"
Material Options
Carbon Steel
Standard material for general industrial applications
• ASTM A234 WPB
• Pressure: 150-900 PSI
• Temp: -20°F to 650°F
Stainless Steel 304
Excellent corrosion resistance for most applications
• ASTM A403 WP304
• Pressure: 150-900 PSI
• Temp: -325°F to 840°F
Stainless Steel 316
Enhanced molybdenum for superior corrosion protection
• ASTM A403 WP316
• Pressure: 150-900 PSI
• Temp: -325°F to 840°F
Alloy Steel P12
High-temperature creep-resistant design
• ASTM A234 WP12
• Pressure: 300-1500 PSI
• Temp: -20°F to 1100°F
Duplex Steel
Superior strength and corrosion resistance
• ASTM A403 WP2205
• Pressure: 600-2500 PSI
• Temp: -50°F to 600°F
Nickel Alloys
Extreme corrosion and temperature applications
• Inconel 600/625
• Pressure: 150-900 PSI
• Temp: -320°F to 2100°F
Applications
Industries
- →Oil & Gas Production and Refining
- →Petrochemical Processing
- →Power Generation and Steam Systems
- →Chemical Processing Plants
- →Water Treatment and Distribution
- →HVAC and Refrigeration
- →Pulp and Paper Manufacturing
- →Food and Beverage Processing
- →Pharmaceutical Plants
- →Marine and Offshore
System Types
- →High-Pressure Injection Systems
- →Low-Pressure Utility Distribution
- →Cryogenic Service (-320°F)
- →High-Temperature Piping (1100°F+)
- →Corrosive Fluid Service
- →Slurry and Abrasive Applications
- →Underground and Buried Piping
- →Subsea and Offshore Systems
- →Modular and Portable Equipment
- →Custom Process Systems
Quick Reference Guide
Elbow Applications
90° Long Radius
Standard choice for most applications. Minimizes pressure drop and turbulence.
90° Short Radius
Space-constrained installations. Slightly higher pressure drop.
45° Elbows
Gentler direction changes. Used in pairs for gradual 90° turns.
Reducer Applications
Concentric Reducers
Centered reduction. Used in vertical lines and discharge connections.
Eccentric Reducers
Bottom-aligned reduction. Prevents vapor pockets in pump inlet lines.
Reducing Tees
Branch connections with size reduction in single component.
Need Fittings for Your Project?
Contact our sales team for quotations, technical support, and fast delivery on standard and custom fitting solutions.