Expansion Joint Installation		Ductile Iron Flange
Suggested Installation as Pump Connectors
End Suction Vertical Discharge Pump Pump is solid mounted Pipe is anchored to support it and to stabilize bellows flanges farthest from pump. Use "H-frame" anchor for vertical discharge and pipe leg anchor for horizontal suction piping.		End Suction Vertical Discharge Pump Pump is mounted on spring-supported inertia block Discharge and suction piping have been arranged to be parallel with drive shaft of pump. Locating flexible coupling further away from pump minimizes strain from misalignment or angular deflection.
Double Suction Split Case Pump Solid Mounted Flexible connectors in vertical lines "H-frame" supports contain end thrust and prevent lateral motion that might cause excessive misalignment. Anchors are welded to pipe before installation of bellows. Weight of pipe should not compress the bellows.		Double suction Split Case Pump Solid Mounted Flexible couplings in horizontal lines Similar to Plate 3 except anchors are located at 90° elbows where piping changes from horizontal to vertical. Flanges farthest from pump are stabilized. Design prevents excessive misalignment or angular deflection. Pipe-leg anchor and floor flange must be designed to withstand the forces and movements imposed on it by the piping system.
Suggested Installation as Expansion Joints Typical Piping Layout Procedures and practices for bellows expansion joint applications include installation of anchors and guides in accordance with EJMA standards.
Bellows Installation Instructions Do not bore out threads in bolt holes. Do not exceed pressure/temperature ratings shown here Safeguard units in hazardous service. (See below) Follow sound installation procedures. A typical reference in the "Piping Handbook" by Nayyar, published by McGraw-Hill. Leave limit bolts in "as received" factory settings. Severe damage can result if the limit bolts and stop nuts are removed, replaced or altered to exceed the factory setting. (See below) Remove flange covers only when ready to install bellows. Insure that sealing faces are clean, smooth & parallel. For hot service install nearly extended; for cold service install nearly compressed. Thread installation bolt from mating flange side to prevent possible damage to the TFE element. Do not extend bolts behind bellows flange more than 1-2 threads. Nut not necessary. Additional information & specific bolt torque data will be found on the detailed installation instruction sheet included in the box of each & every unit shipped. WARNING: Failure to follow the above installation instructions may cause premature failure and/or rupture of the unit resulting in property damage, serious personal injury or death.

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.