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x"�a '*� r � y x a E � ,` ^-C a xa . R ' mot ' ,- t's S % � , tab kM ,$ "$te e .�[ " F '' i447 „ ,„! w ,..4. �.w" ' N � -°>�' =' '''..-':',°,=',:-- 4 CS. S $ �A g ' $tt E �� -',W15' �, � . �e � , t T t F ,66 {, $ 1 : • 4 1 f � ? -0 ! ti . „ . ` „ _; < . Ik : '''4,,''' CV14#i p p r+ y s ''" A s � ,, � J l .x Y' 7 k "''ry "�' e V¢ �$ l '°` g 4 U F r t 2 3 !' S z ' s, r �..�,.. - Te.'1,'y ' s£` x M ..a a%„ s MEGALUG: THE PRODUCT OF PREFERENCE SINCE 1984 Since 1984, engineers and contractors designing and installing Major testing Itioratories agree a s 3" through 24" sizes " `' water and wastewater pipelines and systems have come to rely are Underwritersaboratories (UL) listed , and the 3" through 12 on the EBAA Series 1100 MEGALUG Mechanical Joint Restraint sizes are Factorlutual (FM) approved. as the "Product of Preference" for effectively and economically For use on all classes of ductile iron pipe (PC350 through restraining - ductile iron pipe connections above or below ground. PC and CL56 Through CL50), for practically any application - MEGALUG Mechanical Joint Restraints replace external re including valves,fiydrants and pipe, the MEGALUG Mechanical - straints such as cumbersome concrete thrust blocks and corrod Joint Restraint effectively and safely performs without damage to ible metal tie rods creating a quicker, safer and more economical the pipe or cement linings. installation. ' THE MEGALUG GRIPPING WEDGE... PERFORMANCE PROVEN The wedge style MEGALUG design reacts cyclic loads. This has been tested to very to the amount of force acting on the joint. high-pressure loo d When each wedge is set, the wedge teeth o k the ifferentials and the wedge same as if a single penetrate the pipe's outer surface, and test had been performed. the wedge does not move on the pipe. Typically, the impressions depth of pipe wall pen - There is very little change in this interface _ etration, or wedge impression at around until the wedge movement begins inside $. 25,000 pounds of force per wedge (200 the pocket of the main casting. Once the PSI on a six inch and 150 PSI on a twelve wedge starts moving, the formation of the inch) is 0.03 ". Finally, at roughly twice that " force the penetration is around 0.05 At buttress begins. �, p This "dam" of material (the wedge these high pressures, there is no affect on impression) is cold formed as the wedging t .:? � . the design thickness of ductile iron pipe action continues. If the force of pressure made according to AWWA C150. The lack acting on the joint is released, the wedge of the pocket nal. at the maximum pressure or of damage to the cement lining clearly moves back to near its original position. load, the wedge buttress are in shear. The indicates that the thrust load is primarily This engages the reserve controlled move- maximum movement is about 0.3 inch longitudinal. ment or "RCM ". The wedge is then ready through the thirty six inch size and 0.4 This ability to move in the pocket allows for another round. inch for forty-two and forty-eight inch. for angular flexibility as well as longitudi After the wedge has moved to the back The RCM is available even with severe nal flexibility.