Expansion joints really should not be piled one particular upon another. Around a timeframe, the load will reduce the head to head lengths. It's best to stack them on shelves to prevent this from going on. b. In which a shut-off valve, minimizing valve, Examine valve or any mechanical pipe https://connerdwqjd.worldblogged.com/45764467/new-step-by-step-map-for-stainless-steel-bellows-expansion-joint