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9 Cards in this Set
- Front
- Back
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What can happen if cooling of the pipe below the installation temperature results in excess of tensile force being placed on the piping connection |
Pullout especially from compression joints |
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What happens to the epoxy after a short period of soaking time |
It forms a cross-link structure and cures as a thermoset plastic liner |
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What color is associated with PTFE |
White |
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What will most likely happen if line piping spools are stored in conditions where the ambient temperature may fall below minus 18 degrees Celsius 0 degrees Fahrenheit |
The gasket surface will break off at the end of the liner |
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What should be done to reduce the moisture content at the weld zone of welded concrete and mortar lined steel piping joint |
Preheat the pipe ends to a temperature of 55 degrees Celsius 130 degrees Fahrenheit |
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What is the maximum compression allowed on the gasket faces between two rubber lined flanges |
A gasket face should not be compressed more than one-third of the initial thickness |
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Besides gaskets what must be installed between the faces when joining the flange of line pipe to that of an unlined pipe |
A flat faced spacer ring |
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What is the most common cause of rejection for a lined piping spool or component in a piping installation |
Liner has been damaged in transit to its position in the assembly |
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Compare to polypropylene pipe PP lined metal pipe has in broader operating temperature range true or false |
True |
