SS METAL BELLOWS EXPANSION JOINT WITH CL150 PN16 PN25
Metal expansion joints are compensating elements for thermal
expansion and relative motion in pipelines, containers, and
machines.
Depending on the application, they are composed of one or more
metal corrugated pipes, connectors at both ends, and pull rods.
They differ based on three basic types of motion: axial, angular,
and lateral expansion joints. Expansion joints are used in various
fields
such as energy production, papermaking industry, chemical industry,
water treatment, oil and natural gas. Expansion joints can be used
regardless of thermal motion or vibration in the pipeline.
Size Range:
1”-48”
Project Material Grade:
Carbon Steel: ST37, Q235, A105
Austenitic Stainless Steels: 304 SS, 321 SS, 304L SS, 347 SS, 310
SS, 316 SS, 316L SS, 904L
Nickel Alloys: Inconel 600, Inconel 601, Inconel 625, Incoloy 800,
Incoloy 800H, Incoloy 825, Monel 400,
Technical Drawings of meal expansion joint/ Metallic Expansion
Joint
Type 01 Dimension
| Size | Ripple | Working Pressure(bar) | Effective | Max. | Supplied Length(mm) |
| 10 | 16 | 25 | 10 | 16 | 25 | area | OD |
| DN | qty | Axial Compensation(mm) | Force for Compress(N/mm) | (cm2) | (mm) | Flanged End | Welded End |
| 32 | 8 | 20 | 18 | 15 | 26 | 63 | 98 | 16 | 225 | 160 | 250 | 264 | 280 |
| 40 | 8 | 20 | 18 | 15 | 44 | 89 | 106 | 23 | 244 | 164 | 259 | 269 | 289 |
| 50 | 8 | 20 | 18 | 15 | 70 | 70 | 138 | 37 | 259 | 172 | 276 | 282 | 306 |
| 65 | 8 | 26 | 22 | 19 | 44 | 55 | 68 | 55 | 270 | 215 | 294 | 300 | 322 |
| 80 | 8 | 34 | 28 | 25 | 33 | 41 | 54 | 81 | 284 | 240 | 338 | 344 | 366 |
| 100 | 6 | 40 | 35 | 29 | 75 | 93 | 117 | 121 | 304 | 235 | 317 | 323 | 345 |
| 125 | 5 | 38 | 34 | 29 | 59 | 74 | 92 | 180 | 334 | 282 | 314 | 316 | 342 |
| 150 | 5 | 40 | 34 | 29 | 62 | 78 | 97 | 257 | 364 | 282 | 339 | 338 | 367 |
| 200 | 4 | 42 | 38 | 34 | 68 | 78 | 111 | 479 | 442 | 280 | 348 | 348 | 372 |
| 250 | 4 | 59 | 52 | 47 | 42 | 45 | 55 | 769 | 507 | 315 | 379 | 415 | 379 |
| 300 | 4 | 59 | 52 | 47 | 59 | 65 | 71 | 1105 | 562 | 366 | 427 | 466 | 467 |
Type 02 Dimension
| NPS | Ripple | Working Pressure(bar) | Effective | Max. | Supplied Length(mm) |
| 10 | 16 | 25 | 10 | 16 | 25 | area | OD. |
| DN | qty | Axial Compensation(mm) | Force for Compress(N/mm) | (cm2) | (mm) | Flanged End | Welded End |
| 32 | 16 | 41 | 36 | 31 | 14 | 32 | 47 | 16 | 225 | 224 | 291 | 316 | 321 |
| 40 | 16 | 41 | 36 | 31 | 22 | 45 | 55 | 23 | 244 | 230 | 304 | 319 | 334 |
| 50 | 16 | 41 | 36 | 31 | 35 | 35 | 70 | 37 | 259 | 240 | 342 | 347 | 372 |
| 65 | 12 | 38 | 34 | 29 | 32 | 40 | 50 | 55 | 270 | 260 | 334 | 340 | 362 |
| 80 | 10 | 49 | 43 | 38 | 21 | 26 | 33 | 81 | 284 | 270 | 368 | 374 | 390 |
| 100 | 10 | 64 | 57 | 49 | 40 | 50 | 63 | 121 | 304 | 305 | 381 | 387 | 409 |
| 125 | 9 | 66 | 58 | 50 | 36 | 45 | 56 | 180 | 334 | 382 | 386 | 388 | 414 |
| 150 | 8 | 64 | 54 | 46 | 51 | 59 | 65 | 257 | 364 | 356 | 399 | 402 | 427 |
| 200 | 6 | 59 | 53 | 48 | 52 | 58 | 78 | 479 | 442 | 340 | 402 | 402 | 426 |
| 250 | 6 | 87 | 79 | 71 | 35 | 39 | 47 | 769 | 507 | 393 | 459 | 493 | 399 |
| 300 | 6 | 87 | 79 | 71 | 37 | 41 | 45 | 1105 | 562 | 464 | 525 | 564 | 565 |
What applications are metal expansion joints commonly used in?
Metal bellows and expansion joints are commonly used in a variety
of applications to compensate for thermal expansion, vibration,
misalignment, and other types of movement in pipelines and
equipment. Here are some common applications for metal bellows and
expansion joints:
•HVAC systems: Metal bellows and expansion joints are used in
heating, ventilation, and air conditioning (HVAC) systems to absorb
thermal expansion and contraction caused by changes in temperature
and pressure.
•Aerospace industry
•Petrochemical industry
•Power generation
•Medical equipment
•Automotive industry
•Semiconductor industry: Metal bellows and expansion joints are
used in the semiconductor industry to compensate for movement and
vibration in vacuum chambers and other equipment.
How to select the right metal expansion joint for my specific
application?
Selecting the right material for metal bellows and expansion joints
is important to ensure they are durable and reliable in specific
industry applications. Here are some factors to consider when
selecting the material:
- Temperature: The material should be able to withstand the
temperature range of the application. Different materials have
different temperature limits, so it’s important to choose a
material that can handle the expected temperature range.
- Corrosion resistance: In industries where corrosive substances are
present, it’s important to choose a material that is resistant to
corrosion. Materials such as stainless steel and Inconel are often
used for their corrosion-resistant properties.
- Pressure: The material should be able to withstand the pressure of
the application. Different materials have different pressure
ratings, so it’s important to choose a material that can handle the
expected pressure range.
- Flexibility: The material should be flexible enough to accommodate
movement and vibration in the application. Materials such as
Inconel and titanium are often used for their high flexibility.
- Cost: The cost of the material should be considered in relation to
the specific industry application. Some materials are more
expensive than others, so it’s important to choose a material that
is cost-effective for the application.
It’s important to consult with a manufacturer or supplier of metal
bellows and expansion joints to determine the best material for a
specific industry application. They can provide guidance and
recommendations based on their expertise and experience in the
field.
Bellows Systems engineering and technical sales staff can assist
you in making right material selection based on your application.
FEATURES
Absorb Axial movements (extension and compression).
Axial movement is the change in dimensional length of the bellows
from its free length in a
direction parallel to its longitudinal axis.
Absorb Lateral movements.
Lateral movement is the relative displacement of one end of the
bellows to the other end in a direction perpendicular to its
longitudinal axis.
Absorb Angular and Torsional Movements.
Angular movement is the rotational displacement of the longitudinal
axis of the bellows toward a point of rotation. Torsion refers to
twisting one
end of the bellows with respect to the other end, about the bellows
centerline.
Reduce Vibration.
Rubber expansion joints isolate or reduce vibration caused by
equipment. The transmission
of vibration is reduced and they protect equipment from these
adverse effects
Dampen Sound Transmission.
Rubber expansion joints tend to dampen transmission of sound
because of the steel rubber interface of joints and mating flanges.
Manual and Install Notes of the Rubber Joint
1, The installation of expansion joints shall be in accordance with
the expansion of piping construction drawings and installation
instructions requested
2, Install expansion joint of the pipeline must be approx. to
increase fixed by the orientation
and expansion joints can be made to play a role, so orientation and
fixation of the settings must be in strict accordance with the
design departments of the technical information. For orientation,
the principle of setting a fixed support, please see "Bellows
Expansion joints Installation Guide."
3, With a bellows expansion joint is formed with a thin stainless
steel plate, so lost in moving, hoisting and welding should be
careful not to hit the period, scratch, arc,weld spatter and other
reasons to bellows damage
4, Should be removed before installation and piping bellows foreign
body to ensure normal movement bellows
5, On a flow of media requests for expansion joint should be
required to install the flow arrows
6, In order to make bellows in good working condition,can not
install expansion joints in the deformation, including axial,
lateral, turn transfer pipe installation error
7, Expansion joints installed, running in the system before moving
to remove all painted yellow lose a fixed screw
8, Fabric fiber expansion joint is not subject to the tensile
displacement due to the installation to the proper conduct of the
pre-compression, the pipeline can not deflection, displacement and
axial extension, should be noted that flexible ring of protection
against scratches, installed as soon as possible to dismantle
support board, so that in normal working condition
Application:
Oil & gas, Desalination, Cooling systems, Pumps, Chemical plants,
Heating, ventilating
and air conditioning, Shipbuilding, Off-shore applications, Water
treatment plants
Sewage, Sanitary piping systems, Pulp and paper plants, Piping
systems for chilled or hot water, Cooling systems power generation,
Phosphate plants, Potable water, Food process
