We connect you to the high-quality, dependable flanges and fittings your equipment requires for smooth operations with an eye for superior service, product quality, and attention to detail.
Your Piping Systems Are Only as Good as the Fittings and Flanges That Tie Them Together
Regardless of your industry — from steel and paper mills to HVAC and climate control to pharmaceuticals, food and beverage, and beyond – your piping and tubing systems depend on fittings and flanges to connect your equipment together, regulate the flow of fluids or gases within your process systems, and prevent leaks, pressure loss, and contamination.
American Stainless connects you to the highest standard of flanges and fittings from the best manufacturers, in all the sizes, schedules, and materials to best suit your unique requirements.
Flange and Fitting Sizes, Schedules, and Types
Proper functionality of your pipe and tube systems and equipment depends on flanges and fittings that precisely match the dimensions of your pipes and tubes. With sizes ranging from a minimum inside diameter of 1/8″ IPS (Iron Pipe Size) to a maximum outer diameter of 48″ OD (Outside Diameter) and a wide range of schedules and fits, our selection of fittings and flanges includes just the right ones for your systems.
Fitting Schedules:
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S5
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S10
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S40
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STD
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S80
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S160
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XXH
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150#
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2000#
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3000#
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6000#
Flange Pressure Ratings:
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150#
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300#
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600#
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900#
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1500#
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2500#
Types of Fittings
Fittings allow you to connect different sizes or shapes of piping together, change the direction of a pipe system flow, or control the rate of fluid or gas flow through the pipes. Fittings come in many shapes and sizes, including specialized designs, to accommodate the shape and purpose of your piping systems. There are several options for types of fittings, each with their own advantages for various industrial and commercial applications:
Welded Fittings
Welded fittings are welded directly onto pipes for a strong, permanent connection, ideal for high-pressure applications.
Welded fittings are durable and minimize fluid turbulence.
Seamless Fittings
Seamless fittings lack welded joints and are made from a single piece of material.
Seamless fittings are strong, hold up under high pressure, have fewer weak points, and have a smooth, clean appearance.
Threaded Fittings
Mainly used with small pipe diameters, threaded fittings are screwed together using thread sealant. Threaded fittings are easy to install and maintain, making them very accessible and versatile for small bore piping.
Socket Weld Fittings
Socket weld fittings place a “socket” fitting around the outside of the pipe and weld it to achieve a permanent, strong, leak-proof, and easy-to-install fitting.
These fittings withstand high pressures and reduce the risks of fluid loss and contamination.
Glue Fittings
PVC and CPVC pipe fittings use glue-on fittings in their construction. Powerful solvent adhesives or cements create a strong and permanent bond between fitting and pipe, offering a quick and simple way to install a PVC piping system that conforms to your industrial needs.
Types of Flanges
Flanges attach to the ends of your pipes and provide a surface for bolting to other flanges or other equipment, performing a vital role in holding your pipe systems and equipment together. Our fitting products come in a wide range of sizes, materials, and types to best accommodate your piping system’s individual requirements. Types of flanges include:
Slip-On Flanges
Slip-on flanges slip over the end of the pipe and are then welded in place. Easy to install and inexpensive, slip-on flanges are ideal for low-pressure applications.
Weld-Neck Flanges
Weld-neck flanges provide a strong and permanent connection, making them suitable for high-stress, high-pressure, and high-temperature applications.
Threaded Flanges
Threaded flanges screw onto the ends of your pipes with no need for welding, making them easy to install and easy to maintain. Like slip-on flanges, threaded flanges work best for low-pressure applications.
Blind Flanges
Rather than connecting two pipes, blind flanges close off the end of a pipe or nozzle that is not in use with a high-strength seal that can withstand high pressures, making them useful for isolation and shutdown applications.
Socket Weld Flanges
Much like socket weld fittings, socket weld flanges involve a “socket” that fits over the pipe’s end. Socket weld flanges are strong, leak-proof, and relatively easy to install.
Reducing Flanges
When you need to connect two pipes of different sizes, reducing flanges come in handy, enabling you to effectively reduce the diameter of a pipe. Reducing flanges can be weld-neck, slip-on, or threaded.
Lap Joint Flanges
Lap joint flanges join a stub end to piping components and offer cost-effective installation and easy alignment and disassembly, making them useful for low-pressure applications that require flexibility and ease of adjustment.
Choosing the Right Materials for Your Fittings and Flanges
Stainless steel may be right in our name, but that’s not all we do. Just as pipes and tubes come in many different materials with a wide range of applications and use cases depending on your line of work, so too do the fittings and flanges you use to join and secure them.
Generally, flanges and fittings work best when they are made from the same material as your pipes to ensure the strongest and most reliable connection. However, in some cases flanges and fittings of a different material may provide some necessary advantages such as corrosion resistance or durability to the pipe’s connections.
We can help you choose the right materials for your fittings and flanges to best suit your needs across a wide range of industries and sectors.
Copper
Durable, corrosion-resistant, biostatic, and thermally conductive, copper is a versatile material for flanges and fittings in heating and cooling systems, sanitary applications, and architectural applications.
Carbon Steel
Like stainless steel, carbon steel is a strong and durable material for butt weld, pressure fittings, and flanges, while also being relatively inexpensive and easy to cut, weld, and shape.
Plastics
Much lighter than metal and more cost-effective, PVC and CPVC fittings see common use in plumbing applications due to their corrosion resistance. CPVC fittings also have high temperature resistance for hot water applications.
Special Alloys
Combining two or more materials into special alloys for fittings and flanges can provide unique advantages, such as improved strength, ductility, or corrosion resistance. Contact us to learn more about the alloys we have available for fittings and flanges.
Stainless Steel
Stainless steel is resistant to corrosion and rust, provides high tensile strength, and is easy to clean and maintain, making it a popular material for butt weld and pressure fittings as well as flanges across many industries.
Whatever Your Industry, the Right PVF Materials Matter
Flanges and Fittings With Unrivaled Quality and Service
At American Stainless, we connect you to the right flanges and fittings for the job when you need it, not when it’s convenient for us. We pride ourselves on best-in-class customer service and a quality management system that is literally in a league of its own to ensure that you get same-day service and accurate, on-time shipping for the critical pipe and tube products your project needs.
When you purchase your flanges and fittings from us, we get started on your order right away and deliver your products ASAP. Our quality management system ensures tidy, organized packaging so you can hit the ground running and get started the moment it arrives.
Our price quotes are always transparent and upfront to ensure no nasty surprises when the bill comes.
Ready to get started on a price quote for fittings and flanges?