EBAA Iron 1100 User Manual

®

MEGALUG

Series 1100

Mechanical Joint Restraint for Ductile Iron Pipe

Features and Applications:

• Sizes 3 inch through 48 inch

• Constructed of ASTM A536 Ductile Iron

• Torque Limiting Twist-Off Nuts

• MEGA-BOND
Restraint Coating System
For more information on MEGA-BOND,
refer to www.ebaa.com

• The Mechanical Joint Follower Gland is
incorporated into the restraint

• Heavy Duty thick wall design

Post

Nominal

Pipe Size

3 1103 6.1 3° 350
4 1104 7. 7 3° 350
6 1106 11.9 3° 350

8 1108 14.8 3° 350
10 1110 23.9 3° 350
12 1112 31.2 3° 350
14 1114 48.5 2° 350
16 1116 56.4 2° 350
18 1118 63.1 1½° 250
20 1120 72.3 1½° 250
24 1124 133.1 1½° 250
30 1130 194.6 1° 250
36 1136 234.0 1° 250
42 1142 536.0 1° 250
48 1148 653.0 1° 250

NOTE: For applications or pressures other than those shown please

Made In

The USA

0914-2.5-H Copyright © 2007. EBAA Iron, Inc. All Rights Reserved.

Series

Number

4092036, 4627774, 4779900, 4896903, 5544922

Shipping

Weights

U.S. Patent Nos.

Assembly

Deection

contact EBAA for assistance.

Pressure

Rating

(PSI)

• Support Products Available:
Split repair style available 3 inch

through 48 inch.
EBAA Series 1100SD

Solid restraint harness available for
push-on pipe bells.
EBAA Series 1700

Split restraint harness available for
existing push-on bells.
EBAA Series 1100HD

• All MEGALUG and related restraint
products can be furnished as packaged
accessories complete with appropriate
restraint, gasket, lubrication, and bolt­ing hardware

• For use on water or wastewater pipe­lines subject to hydrostatic pressure
and tested in accordance with either
AWWA C600 or ASTM D2774

®

PRESURE OR EXTERNAL FORCE

MEGALUG: THE PRODUCT OF PREFERENCE SINCE 1984

Since 1984, engineers and contractors designing and installing
water and wastewater pipelines and systems have come to rely
on the EBAA Series 1100 MEGALUG Mechanical Joint Restraint
as the “Product of Preference” for effectively and economically
restraining ductile iron pipe connections above or below ground.
MEGALUG Mechanical Joint Restraints replace external re­straints such as cumbersome concrete thrust blocks and corrod­ible metal tie rods creating a quicker, safer and more economical
installation.

THE MEGALUG GRIPPING WEDGE... PERFORMANCE PROVEN

The wedge style MEGALUG design reacts
to the amount of force acting on the joint.
When each wedge is set, the wedge teeth
penetrate the pipe’s outer surface, and
the wedge does not move on the pipe.
There is very little change in this interface
until the wedge movement begins inside
the pocket of the main casting. Once the
wedge starts moving, the formation of the
buttress begins.
This “dam” of material (the wedge
impression) is cold formed as the wedging
action continues. If the force of pressure
acting on the joint is released, the wedge
moves back to near its original position.
This engages the reserve-controlled move­ment or “RCM”. The wedge is then ready
for another round.
After the wedge has moved to the back

of the pocket at the maximum pressure or
load, the wedge buttress are in shear. The
maximum movement is about 0.3 inch
through the thirty-six inch size and 0.4
inch for forty-two and forty-eight inch.
The RCM is available even with severe

Movement
causes
wedges to
increase
grip

RCM

MOVEMENT

Major testing laboratories agree as the 3” through 24” sizes
are Underwriters Laboratories (UL) listed, and the 3” through 12”
sizes are Factory Mutual (FM) approved.
For use on all classes of ductile iron pipe (PC350 through
PC150 and CL56 through CL50), for practically any application
including valves, hydrants and pipe, the MEGALUG Mechanical
Joint Restraint effectively and safely performs without damage to
the pipe or cement linings.

cyclic loads. This has been tested to very

Max pressure

high-pressure differentials and the wedge
impressions look the same as if a single

Max movement

Rated pressure

Wedge movement
begins

Normal operating
pressure

test had been performed.
Typically, the depth of pipe wall pen­etration, or wedge impression at around
25,000 pounds of force per wedge (200
PSI on a six inch and 150 PSI on a twelve
inch) is 0.03”. Finally, at roughly twice that
force the penetration is around 0.05” At
these high pressures, there is no affect on
the design thickness of ductile iron pipe
made according to AWWA C150. The lack
of damage to the cement lining clearly
indicates that the thrust load is primarily
longitudinal.
This ability to move in the pocket allows

for angular exibility as well as longitudi­nal exibility.