Process Barron fabricates and assembles all metal expansion joints and frames in-house at our own facilities, for a variety of applications and industries including I.D and F.D fans, ductwork, stacks, baghouses, precipitators and scrubbers. Process Barron’s metal expansion joints are supplied in round, square and rectangle configurations to accommodate for axial and lateral movements in flue gas and process duct systems. These joints can be manufactured from various materials to accommodate for more corrosive or high-temperature environments.
Metal expansion joints are produced with standard angle, bar or pip flanges to match the specified connecting duct. Additionally, axial, lateral (x and y direction) spring rates and cycle life data are available for each expansion joint.
Contact Process Barron today to learn more about our metal expansion joint fabrication capabilities, if you require equipment inspection or emergency field service assistance. Technical experts are available for field inspection and evaluation services, complete field installation, temporary joint repair and splicing, and turn-key installation. Our qualified engineering and service teams are eager to earn your business and help you maintain an efficient operation.
Expansion Joint Construction:
Design:
Rectangular duct expansion joints are designed in accordance with the Expansion Joint Manufacturers Association (EJMA). This ensures compensation for thermal expansion in duct systems to precipitators, scrubbers, turbines, boiler breeching and other gas systems.
Pressure:
Type A expansion joints are designed for /-100” water gauge pressure, maximum temperature of 1000˚F.
Type B expansion joints are designed for service from full vacuum to 15 PSIG at a maximum temperature of 1000˚F.
Movements:
Process Barron can furnish a design for any combination of axial, lateral or angular movement per customer specification.
Bellows:
Rectangular bellows are die formed from.050" thick deep drawn quality annealed sheet conforming to ASTM specifications, available in two standard designs.
Liners:
Internal liners should be specified when flows velocity exceeds 25 FPS or where abrasive particles in the gas stream could cause erosion of bellows.
Corners:
Single miter corner: the most economical design for most applications, available on Type A or B expansion joints.
Camera corner: additional flexibility for duct systems that operate under more cyclical conditions, available on Type A expansion joints
Round corner: maximum flexibility and pressure capacity, available on Type B expansion joints