HAINER STEEL Industrial Flanges

Perfect for applications where welding is not permitted or practical, threaded flanges screw directly onto threaded pipe ends.

• No welding required
• Easy installation & removal
• Ideal for maintenance access
• Sizes: 1/2" - 12"
• Pressure: 150# - 600#

The industry standard for high-pressure applications, featuring a long tapered hub that provides exceptional structural strength and stress distribution.

• Superior strength & fatigue resistance
• Butt-weld connection
• Ideal for critical services
• Sizes: 1/2" - 120"
• Pressure: 150# - 2500#

Cost-effective and easy to install, slip-on flanges slide over the pipe and are welded both inside and outside for reliable, leak-free service.

• Lower initial cost
• Easier alignment & installation
• Double-weld design
• Sizes: 1/2" - 24"
• Pressure: 150# - 600#

Designed for small diameter, high-pressure lines, socket weld flanges provide strong connections with minimal internal crevices for clean service.

• Smooth internal bore
• Single external fillet weld
• Minimal turbulence
• Sizes: 1/2" - 4"
• Pressure: 150# - 2500#

Used with stub ends for systems requiring frequent dismantling, alignment, or where dissimilar metals must be joined economically.

• 360° rotation capability
• Easy bolt hole alignment
• Cost-effective exotic materials
• Sizes: 1/2" - 24"
• Pressure: 150# - 600#

Solid flanges without a bore, used to close off pipeline ends, vessel nozzles, or valves for pressure testing and system isolation.

• Complete pipeline closure
• Pressure testing capability
• Easy inspection access
• Sizes: 1/2" - 120"
• Pressure: 150# - 2500#

Flat plate flanges for custom applications, vessel connections, and non-standard configurations requiring specialized engineering.

• Custom bolt patterns
• Vessel nozzle connections
• Non-standard dimensions
• Sizes: Custom designed
• Pressure: Project specific