Metallic Expansion Joints - Thorburn Flex Inc

THORBURN
FLEXIBLE PIPING SPECIALIST
THORBURN'S METALLIC BELLOWS EXPANSION JOINTS AND CONNECTORS
FOR PIPING AND DUCTING SYSTEMS
METALLIC BRAIDED FLEX CONNECTORS Pages 28 to 29
• Pipeline misalignment absorption
• Lateral deflection and vibration absorption
• Riser connections, pumps, compressors, cooling towers
SINGLE AND UNIVERSAL (Unrestrained) Pages 31 to 52
Single
• Thorburn's most economical
expansion joint
• Will not absorb pressure thrust
forces unless control rods are
used
• Axial lateral offset limited and
angular rotation
• Generally used where axial or
lateral movement is required and
where anchoring is not a problem
Universal
• Used when axial and/or lateral concurrent movement
requirements exceed Thorburn's single bellows
• Lack of control devices demands careful anchoring
and guidance of connecting pipe
HINGED ANGULAR ROTATION (Single plane) Page 32
• Angular motion in only one plane
• Positive control over bellows movement
• Eliminates pressure thrust forces
• Transmits external loads
• Supports dead weight
• Prevents torsion on bellows
• No main anchors required
• Minimum guiding required
• Low forces on piping system
• Maximum bellows cycle life
• To be used in sets of two or three where
piping changes direction. The hinge pins
absorb internal pressure thrust, permitting
the use of light anchors
GIMBAL ANGULAR ROTATION (All planes) Page 33
• Angular motion in all planes
• Positive control over bellows movement
• Eliminates pressure thrust forces
• Transmits external loads
• Supports dead weight
• Prevents torsion on bellows
• No main anchors required
• Maximum bellows cycle life
• Used in sets of two or three to
absorb motion in any plane
DOUBLE (In-line) Page 45
• Use in-line on long pipe runs of straight piping to absorb major axial movement
up to 12"
• Joint is anchored in the center of the line, therefore two pipe guides must be
placed on each side of the unit.
Page 2