USE OF INTERNAL SLEEVES IN EXPANSION JOINTS
Certain abrasive applications, such as slurries, or high velocity flow
rates may damage the inside surfaces of the bellows convolutes or the
radius surface at the end flares. In such circumstances a nozzle liner
may be factory installed in the up-stream side (inlet) of the bellows
to help protect the unit or smooth out the flow. While such liners may
greatly extend useful service life of the bellows, they will restrict
movement unless all deflection is confined to straight axial compression
and/or extension. Unless other wise specified, overall length is 6".
Available for use with bellows units through 8" sizes.
SAFEGUARDING
The Chemical Plant and Petroleum Refinery Pressure Piping Code, ANSI/ASME
B31.3, in Appendix G outlines recommendations for safeguarding piping
systems. Resistoflex subscribes to this emphasis on safety and endorses
the code suggestion for shielding bellows units where hazardous fluids
are conveyed. Information on wrap-around
safety shields.
LIMIT BOLT
Limit bolts with elastic stop nuts are factory set at the maximum travel
position to prevent overextension. Severe damage or personal injury
can result if the limit bolts and stop nuts are removed or altered to
exceed the factory setting, or if non-locking nuts are installed.