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Expansion Joints

Ductwork

U.S. Bellows provides custom designed expansion joints in ductwork and fabricated ductwork assemblies. The assemblies may include fabricated elbows, tees, and straight sections of ductwork, in carbon steel or stainless steel, and in diameters of 42″ or larger. The duct sections can include fabric or metallic expansion joints and can be rectangular or round.
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Fabric Expansion Joint

A very low pressure flexible ducting element that consists of round or rectangular fabric bellows sections and accompanying end connections. Most motions allowed
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Thick Wall Expansion Joints

A flexible piping element that consists of a single corrugation bellows generally as thick as the mating system material with welding end connections. Only axial motion.
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Slip-Type Pipe Expansion Joints

A flexible piping element that consists of two concentric sliding pipe sections, an annular sealing system, and accompanying end connections. Only axial motion
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Rectangular Metal Expansion Joints

A low pressure flexible ducting element that consists of rectangular corrugated bellows sections and accompanying end connections. Primary motion axial.
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Toroidal Expansion Joint

A flexible piping element that consists of a single corrugation bellows and accompanying end connections. Only axial motion.
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Refractory Lined Expansion Joint

A flexible piping element of any type with an internal heat and or erosion resistant liner to reduce metal temperatures for high temperature service.
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Externally Pressurized Expansion Joints

A flexible piping element that consists of one corrugated bellows, an external pressurized case, and accompanying end connections. Primary motion axial.
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In-Line Pressure Balanced Expansion Joints

A flexible piping element that consists of one or two corrugated bellows in a line, a change of direction such as an elbow, a balancing corrugated bellows, and accompanying end connections. Primary motion axial.
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Externally Pressurized Expansion Joints

A flexible piping element that consists of one or two corrugated bellows in a line, a change of direction such as an elbow, a balancing corrugated bellows, and accompanying end connections. Primary motion axial.
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Gimbal Expansion Joint

A flexible piping element that consists of one corrugated bellows and accompanying end connections. Motion is controlled via the gimbal to a multiple planes of angulation.
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Hinged Expansion Joint

A flexible piping element that consists of one corrugated bellows and accompanying end connections. Motion is controlled via the hinge to a single plane of angulation.
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Universal Expansion Joint

A flexible piping element that consists of two corrugated bellows, a connecting center section, and accompanying end connections. Primary motion lateral.
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Single Expansion Joint

A flexible piping element that consists of one corrugated bellows and accompanying end connections. Primary motion axial.
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