EXPANSION JOINTS
Fabric, Metal, and Rubber Expansion Joints
Regardless of material type, expansion joints are essential components in piping and duct systems, designed to accommodate movement caused by thermal expansion, contraction, vibration, and other dynamic forces. Without these joints, rigid piping and ductwork could experience excessive stress, leading to cracks, leaks, tearing, and even mechanical failure. Expansion joints help mitigate these risks by absorbing movement and reducing strain on the system.
- Fabric expansion joints are commonly used in duct systems to absorb thermal growth and mechanical shock while isolating vibrations. While being cost-effective, these joints can withstand extreme temperatures and can be manufactured using materials resistant to chemicals, ensuring durability.
- Metal bellows expansion joints are constructed from corrosion-resistant metals like stainless steel or Inconel, allowing them to withstand extreme temperatures and pressures. These joints accommodate dimensional changes due to temperature fluctuations, preventing structural damage. Metal joints can be customized to specific applications and designed to manage axial, lateral, and angular movements, ensuring flexibility in complex piping systems.
- Rubber expansion joints are flexible, lightweight, and highly durable, making them ideal for absorbing vibrations and compensating for misalignments. Rubber joints are resistant to corrosion and abrasion, making them ideal for harsh environments. They also help accommodate shifts or misaligned piping, preventing leaks and failures.
The selection of an expansion joint depends on various factors, including the operating temperature, pressure, and the type of media or gas being transported.
Comprised of experienced and professional engineers, specialists, technicians, and managers, our team has PSIG has over 30 years’ experience to fabricate, install, and inspect your expansion joints.
Expansion Joints for Power Generation:
- Combustion Turbine Exhaust Expansion Joints (GE, Siemens, Mitsubishi, Alstom, and more)
- GE 7F Flex Seal Upgrades
- HRSG Inlet & Duct Work Expansion Joints
- Stack Inlet Expansion Joints
- HRSG Penetration Seals
