The expansion joint is used to accommodate expansion; does the stud limit its function?
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The expansion joint is used to accommodate expansion; do the \"tie rods or setting screws\" limit its function?
If it is to serve the purpose of protecting the expansion joint, then isn’t a single-wave expansion joint in need of protection?
To prevent stretching in pressurized pipes, it is necessary to use bolts for positioning and locking at the installation points in order to avoid external stretching (using double-nut anti-loosening mechanisms)； For pipelines under atmospheric pressure, an internal stop is required to prevent the reduction of the structure’s length; this internal stop must be positioned and secured with bolts.
If the piping system is already properly constrained, the tie rod must be removed after installing this type of expansion joint.
This post was last edited by wanlirn on 2019-3-10 at 12:24. First of all, after the installation of this tie rod expansion joint, it is necessary to loosen the nut, or it is also fine to remove the tie rod. Its functions are: 1. To prevent deformation during transportation; 2. To serve as a guide for pre-stretching or pre-compressing the expansion joint； A friend upstairs said that those components are meant to prevent overpressure during operation or pipe displacement, and to limit stretching and protect the bellows; in fact, they’re unnecessary. The internal pressure in the pipes is very high, and in case of an accident, those tie rods aren’t of any use. Sometimes even fixed supports can’t withstand overpressure or thermal stress, so what good are those tie rods?