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Pressure
Piping
Expansion
Joints
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Thorburn's
metallic bellows is a flexible seal. The convoluted portion of an
expansion joint is designed to flex when thermal movements occur in
the piping system. The number of convolutions depends upon the amount
of movement the bellows must accommodate or the force that must be
used to accomplish this defection.
EXAMPLE OF BELLOWS DESIGN ANALYSIS DOCUMENTATION
The
convoluted element must be strong enough circumferentially to withstand the line pressure of the system, yet
responsive enough longitudinally to flex. The longitudinal load (pressure thrust) must then be absorbed by some
other type of device. These are usually anchors, tie rods, hinges, or gimbal structures.
| Bellows
Building Capabilities |
Size Range: 6.3mm - 9m
Thickness: 0.13mm - 6.3mm
Temperatures: -320°F - 2,000°F
| Welding
and Fabrication Certification |
Welders and welding procedures:
ASME Section IX, VIII, III
GTAW, FCAW, TIG, MIG, core wire
Tube welding, tack welding, automated flame
cutting, large turn tables, rolls & positioners
Roll forming 2"(50mm) to 30'(9m)
Bulge forming 6"(150mm) to 36"(900mm)
Hydro forming 1/2"(12.7mm) to 12"(300mm)
| Quality
Assurance Certification |
COMMERCIAL
CSA CAN3 Z299.1
ISO 9001 (Head Office)
CSA B.51 (Category A&D)
ASME B31.1/B31.3/B31.5
NUCLEAR
ASME Code Section III
subsection NCA 4000 (ASME-NQA-1)
CSA N-285.0
DESIGN & MATERIALS
ASME Code Section I, II, III,
VIII, IX, B31.1 & B31.3
EJMA 7th Edition
| Testing,
NDT/NDE Programs & design verification tests |
ASME Section V
Magnetic particle, ultrasonic, Eddy current
& dye penetrant testing
Mass spectrometer and helium
leak detection, radiography
Hydro testing
Burst testing up to 150,000 psi
Bellows fatigue testing
Seismic & vibration analysis
Spring rate, dead weight and
hardness testing
| HOME
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Bellows
Forming Technology
up to 9m
Skilled
Thorburn welder certified to
ASME Section IX using modern
TIG welding for bellows flange attachment |
