EBAA Iron, Inc. is an industry leading manufacturer of external pipe joint restraint devices that are specifically designed for use on pressurized or non-pressurized waterworks piping systems. Since 1964, EBAA has been a proud privately-held and family-owned N. American based company currently Headquartered in Eastland, TX.

The guiding principles of our founder, Mr. Earl C. Bradley, has continued to lead us in providing innovative piping products primarily for use in the water and wastewater industries. EBAA products are designed and engineered to not only save time and money from their initial date of installation - but more importantly, our products are designed with the intent that they must also protect and ensure the long-term integrity of the piping system.

EBAA is the original manufacturer and patent holder of the world famous MEGALUG® Mechanical Joint Restraints, the MEGAFLANGE® Restrained Flange Adapter, the MEGA-COUPLING® Restrained Pipe Coupling and the wide array of FLEX-TEND® Flexible and/or Expansion Joint family of products.

EBAA is also proud to proclaim that all of its pipe restraint products are 100% MADE IN USA - 100% of the time, every time!


The Force Balanced EX-TEND Expansion/Contraction Joint is designed to provide expansive or contractive movement to water pipelines subjected to linear movement. Unlike normal expansion joints, the Force Balanced EX-TEND does not generate an imparting thrust.

For use with gravity drain pipelines, the DWV FLEX-TEND is a flexible expansion joint can be used in drain, waste, and vent non-pressurized piping.

The MEGA-STOP® is a safe and economical “over-insertion” solution. With it, you can properly and quickly assemble pipe joints each and every time.

The MEGALUG Series 1100CH split restraint harness for couplings have a split design for ease of installation. It restrains both existing and new couplings on Ductile Iron Pipe.

The Series 1100HV is a restraint made for existing push-on joints on large diameter C900 PVC pipes. It is built from ASTM A536 ductile iron and has a MEGA-BOND® Restraint Coating System. 

FLEX-TEND Force Balanced Flexible Expansion Joints are designed to protect water pipeline systems from the stresses produced by ground motion either from seismic activity or gradual soil subsidence. The Force Balanced FLEX-TEND unlike conventional flexible/expansion joints does not generate an axial thrust that must be compensated for.

The Series 1100TDM Tandem MEGALUG restrain ductile iron pipe to mechanical joint fittings, pipe and appurtenances that require high PSI ratings. It consists of one Series 1100 MEGALUG and one Series 1100 MEGALUG with the MJ lip removed as to sit properly behind the first.

The Series 2200 MEGALUG Mechanical Joint Restraint for use on Large Diameter (C905) AWWA PVC Pipe is a solid ring restraint for restraining PVC pipe to mechanical joint fittings and appurtenances.

The Series 2000PV MEGALUG Mechanical Joint Restraint is the fastest and most economical method of restraining PVC pipe to mechanical joints. It can be used with C900, C905 or IPS OD PVC pipe. For sizes 42 through 48 inch See Series 2200

FLEX-TEND Flexible Expansion Joints are designed to protect water or wastewater pipeline systems from the stresses produced by ground motion or shear either from seismic activity or gradual soil subsidence.

The Series 1100 MEGALUG® Mechanical Joint Restraints effectively and economically restrain Ductile Iron Pipe (DIP) to mechanical joints above or below ground, for practically any application including valves, hydrants, and pipe. For use on all classes of ductile iron pipe (PC350 through PC150 and CL56 through CL50) without damage to the pipe or cement linings. It can also be used on steel pipe and cast iron pipe when joining to mechanical appurtenances, see product brochure for more details on these pipes.

The EX-TEND® 200 joint is designed for pipelines that are subjected to expansion and contraction forces and is self restrained at full expansion.

The Series 3800 MEGA-COUPLING is a restrained coupling for similar and dissimilar pipe materials.

The Restraint Harness consists of one Series 1100 MEGALUG Restraint and one split bell back up ring. For use on water or wastewater pipelines subject to hydrostatic pressure and tested in accordance with either AWWA C600 or ASTM D2774.

The Series 1900 is designed for restraining push-on bell and spigot AWWA C909 PVC Pipe. The harness consists of two split serrated restraints one on the spigot end and another behind the bell harnessed together by an array of thrust rods. The Restraint harness is rated to the full pressure of the pipe.

The Series 2100 MEGAFLANGE Restrained Flange Adapter is a field-adaptable wedge style restrained flanging system. It has a restraint ring and a gasket ring to give the maximum amount of flexibility during and after installation.



P.O. Box 857

Eastland, TX 76448


Phone: 800-433-1716

Fax: 254-629-8931

Contact: Rick Rackow


  • Sean Schaefer from EBAA Iron sits down to discuss the founding of EBAA 58 years ago and how the company has grown.

  • The 2000PV is a restraint for PVC pipe and the standardized mechanical joint. This product is the result of years of testing and evaluation and its performance has been proven by thousands of hours of proof tests, as well as third-party evaluations. This report describes the 2000PV through the 12" size.

  • Water and wastewater piping come in a variety of materials, joints, and diameters. They can meet a multitude of demands and needs for the country's infrastructure.

  • The argument has been used that PVC pipe is delicate and can’t be subjected to any kind of loading. In EBAA's years of testing we have found that is not the case at all. PVC can take an extreme amount of strain.

  • Flex-Tend flexible expansion joints have a proven record of providing protection for pipelines subject to subtle or sudden movement. As with all products used in the water and wastewater industry, protection is optimized with the selection of the proper assembly incorporated into a sound design. This paper is intended to provide assistance in both of these areas.

  • There are numerous configurations of flexible and expansion joints available to the design engineer. They include bellows joints, flexible hoses, bolted-mechanical couplings, and ball joints. In 1989 EBAA Iron, Inc. introduced the FLEX-TEND® joint (FT) flexible expansion joint product into the US market. Constructed of ductile iron, the product is comprised of two ball joints joined by an expansion joint. For the first time one product was available to protect pipelines and pipeline connections from differential movement resulting from seismic activity and soil expansion/contraction in areas of poor soil support, frost heave, and transitions from stable to unstable areas.

  • FLEX-TEND® flexible expansion joints are designed to protect structures and pipelines from differential movement whether this movement is earthquake induced or the gradual motion of soil subsidence. This bulletin offers a concise listing and discussion of the important features and materials of the double and single ball assemblies.

  • In the last forty years, a quiet revolution has occurred in our industry. This revolution is the result of new generations of joint restraint products that make it possible to quickly and safely restrain fittings at bends, dead ends, tees, valves, and reducers without the need for concrete thrust blocks or tie rods. These joint restraint products turn the pipeline into its own thrust block. The key to utilizing these new products is the understanding and proper application of the pipeline restraint design theory.

  • The Merriam-Webster Online Dictionary defines traceability as “a: to follow the footprints, track, or trail of b: to follow or study out in detail or step by step… c: to discover by going backward over the evidence step by step … d: to discover signs, evidence, or remains of”. At EBAA Iron traceability allows you as the end user or us as the manufacturer to go backward into the production process and discover the signs that reveal the casting properties to the base level.

  • The question often arises “Can you really eliminate thrust blocks using joint restraint?” This bulletin will provide you with the information needed for you to realize the answer to that question is “yes”. For many years, thrust blocks have been successfully used in distribution systems all over the world. Thrust blocks, however, are not without limitations.

  • These equations and soil parameters are an effort to provide the piping system designer with conservative techniques and parameters for the design of underground restrained joint piping systems. 

  • This bulletin describes the restrained length calculations for dead ends, valves, reducers, and sleeves with a discussion of several situations where economics and other factors may favor an alternate restraint method. 

  • There are numerous fitting combinations and configurations that are used in the everyday construction of pressurized water lines. This report describes vertical offsets, tees, and using joint restraint products to simplify their installation. The use of joint restraint products virtually eliminates thrust blocks and tie rods.

  • Of particular interest when it comes to bridges is the locating of pressurized water lines on and under bridge structures. Pressurized pipelines can present a number of unique challenges to the design engineer and utility owner.

  • Connections bulletins PD-1 through PD-4 discuss some of the specific applications of the design of a properly restrained pipeline. PD-2 specifically addresses horizontal bends and the various parameters involved in the design process. PD-3 applies those parameters to the design of vertical offsets and tees. Finally, the design of reducers, dead ends, and miscellaneous fittings is discussed in PD-4. This bulletin delves into a more detailed discussion of the bearing and frictional resistance forces at work to balance thrust forces generated in pressurized pipelines. To see how this information relates to the various pipeline elements, please refer to the other Connections bulletins.