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■EPDT-344a■
3. Precautions before installation
Caution
1.
Provide anchors, guides, and pipe supporting device when installing the product.
*The function of the product will not be fulfilled due to equipment breakage, piping bending,
abnormal product growth, etc.
2.
Please use the product within the range from the minimum length to the maximum length.
*
If the product is not within the specified range, the product will not function due to abnormal
expansion and contraction of the product.
3. Install the product correctly so that the inlet and outlet are correct. There is a display on the
body showing the direction of fluid flow.
*Installation in the wrong direction may not only affect the original performance, but may also
lead to an accident.
4. Install so that there is no misalignment in both horizontal and vertical piping.
*
Misalignment may lead to noise or damage from the inner cylinder, which may not only affect
the original performance, but may also lead to an accident. In particular, vertical piping is
prone to misalignment, so provide anchors, guides, and pipe supporting device to prevent
misalignment.
(1) The expansion/contraction of piping depends significantly on temperature. To ensure satisfactory
results, use the expansion joints within the maximum expansion/contraction length.
(2) Secure anchors and guides are required to make full use of the function of the joint connected
to piping.
(3) The piping system shall be equipped with main anchors at the following positions. (Refer to the
reference piping example on page 5.)
[1] End part of straight piping with shut-off plate.
[2] Portion of bent pipe where the flow direction changes.
[3] The portion between two expansion joints where the piping systems are changed by
reducer.
[4] The portion of piping between two expansion joints where a valve is installed.
[5] The entrance of a side branch containing an unrestrained expansion joint into the main
piping.
(4)
Using a sufficient number of anchors and guides is important not only for guiding the piping to
absorb its expansion or contraction with the joints, but also for preventing pipe bending or
buckling or joint damage. Check where anchors and guides should be installed, and mount them
according to the correct procedure.