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The hinged type restraints the bellows pressure thrust by
the hinge arms and pins mounted on the both sides of bellows
and only low spring forces are transmitted to the fix point
or equipment. These hinge hardware including arms & pins
permit bellows to absorb the angular rotation on one plane.
For the proper function of this type of Expansion Joint on piping-work,
two or three sets of hinged Expantion Joint must be considered
as figures bellow.
1. Rated cycle life is 3000 cycles per EJMA 6th edition for
any non-concurrent movement tabulated.
2. To combine axial, lateral movement refer to page 4.
3. Maximum axial extension movement is 50% of tabulated axial
value.
4. To obtain greater movements of cycle life refer to page 4.
5. Catalogue pressure ratings are based upon a maximum bellows
temperature 800°F
Actual operating temperature should always be specified.
6. Maximum test pressure: 11/2 × maximum working pressure.
7. The overall length may be revised in accordance with the
type of Expansion Joint and other attachment. |
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This type of Expansion Joint is constructed with two hinged
Expansion Joint for the purpose of absorbing lateral displacement
with each bellows bending action, so that large lateral displacement
is permitted by lengthening the intermediate shell pipe. If
the absorbing of themal growth from intermediate pipe is required
within this type of Expansion Joint ifself on high temperature
application in piping stress analysis, SAMSUNGFLEX can provide
the specially designed hinge hardware assembly whit long hinge
plate as much as the distance between the center line of each
bellows, which perform the function like as swing bar. Also,
the weight of intermediate shell pipe is supported by the hinge
arm so that it does not affect the bellows.
1. Rated cycle life is 3000 cycles per EJMA 6th edition for
any non-concurrent movement tabulated.
2. To combine axial, lateral movement refer to page 4.
3. Maximum axial extension movement is 50% of tabulated axial
value.
4. To obtain greater movements of cycle life refer to page 4.
5. Catalogue pressure ratings are based upon a maximum bellows
temperature 800°F
Actual operating temperature should always be specified.
6. maximum test pressure: 1 1/2 × maximum working pressure.
7. The overall length my be revised in accordance with the type
of Expansion Joint and other attachment. |
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