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Flange connection
A flange connection is a method used to join sections of compressor piping or connect a compressor to other components in a compressed air system. It uses a pair of bolted rims (known as flanges) that create a secure, sealed joint between two pieces of equipment or pipe.
A flange connection allows operators to easily attach, remove or service parts of a system without cutting or welding pipe. These connections are essential in industrial air compressor systems, where reliability, pressure containment and serviceability are critical to performance.
Flange connections are commonly found at the inlet and discharge points of larger rotary screw and reciprocating compressors. These bolted connections ensure compressed air or gas is safely contained and efficiently directed through the system.
FAQs
A flange connection joins the compressor to piping or auxiliary components like dryers, filters or storage tanks. It ensures a secure, leak-free flow of compressed air or gas.
In a flange connection, each pipe or equipment end is fitted with a flat or raised rim — this is the flange. The flanges are aligned and secured together with a bolted flange joint, with gaskets between them to prevent leaks. When properly installed, the joint can handle high pressures, temperature fluctuations and vibrations, which are common in industrial air systems.
Because they’re bolted, flange connections can be disassembled for inspection or maintenance. This quality makes them ideal for compressor systems that may require periodic servicing or component replacement.
Flanges are typically made from carbon steel, stainless steel or other alloys that handle pressure, temperature and corrosion.
Yes. Most flange designs follow ANSI or ISO standards, ensuring compatibility with industrial equipment like Quincy compressors and accessories.
Absolutely. Quincy Compressor’s nitrogen boosters and air compressors can be integrated into piping systems that rely on flange connections for safety and service access.
In air compressor systems, flange connections are just one of several ways to join piping. Common types of pipe connections include:
- Threaded connections: These connections use screw-like threads to join sections. They are common in smaller systems and low-pressure applications.
- Welded connections: These provide a permanent, leakproof seal and are often used in high-pressure or specialized systems.
- Flange connections: These combine the strength of welding with the serviceability of a bolted joint. They are ideal for medium- to high-pressure compressor piping.
Use the correct gasket material, torque the bolts evenly and inspect joints during regular maintenance. Use genuine parts and fluids from a trusted provider to maintain warranty coverage and system reliability. When you’re tasked with maintaining a complex compressor piping system, our network of professional and knowledgeable air experts can help you find the right solution.
View our extensive online resources or contact your local authorized Quincy representative for assistance with flange connections, air system design or maintenance support.