AMERICAN Restrained Joint Pipe
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Joint Pipe

AMERICAN Restrained Joint Pipe The principal standards relating to applicable features of AMERICAN Restrained Joint Pipe and Fittings are ANSI/AWWA C151/A21.51, ANSI/AWWA C110/A21.10, ANSI/AWWA C111/A21.11 and ANSI/ AWWA C153/A21.53. These and other standards are referenced throughout this Section either by the full ANSI/AWWA designation or by only the AWWA numbering, such as AWWA C151. In many piping installations, the restraining of forces due to internal pressure at fittings, valves, or dead ends is a major consideration. In most underground piping, the restraining of such forces is...

AMERICAN Fast-Grip® Gasket American Fast-Grip gaskets have been proven to be a superior field-adaptable method of restraining 4”-30” ductile iron pipe or fittings. The restraint provided by the patented* AMERICAN Fast-Grip® gasket is due to the development of wedging action between pairs of high-strength stainless steel elements spaced around the gasket. The outer metal element acts as a bearing member for the wedge-shaped inner element which has sharp teeth on its inner surface for gripping the spigot. Because of the wedging design utilized, the force between the spigot and the socket of...

AMERICAN Fast-Grip® Gasket Assembly Instructions Assembling pipe and fitting joints using Fast-Grip gaskets is simple. It is very similar to the assembly of Fastite joints shown in Section 2. Fast-Grip gaskets may be used in lieu of standard Fastite gaskets in the bells of Fastite and FlexRing joint pipe and fittings where easy, fieldadaptable restraint is desired. 1. Cleaning of Socket and Spigot Clean the socket and plain end thoroughly, removing any mud, sand, gravel, ice, frozen material, or other matter that could prevent a proper joint seal. Material in the gasket grooves may cause...

AMERICAN Fast-Grip® Gasket Assembly Instructions—Continued 3. Lubrication of the Joint With a clean brush, apply a liberal amount of regular Fastite lubricant completely over the end of the pipe, the spigot radius, and the outer surface of the pipe up to the assembly stripe. Also apply lubricant completely over the exposed inner surface of the gasket. AMERICAN supplies an extra 10% of lubricant to be used with the Fast-Grip joints to ensure ease of assembly. Use only lubricant provided by AMERICAN. For underwater conditions, special AMERICAN underwater lubricant is recommended and is...

AMERICAN Fast-Grip® Gasket Assembly Instructions—Continued Field-Cut Pipe When pipe is cut in the field, the cut end must be properly prepared prior to assembly. In 18” and larger sizes, the ordering and use of a few select pipes that have been “gauged full length” at the factory should be considered when field cuts are anticipated. Using a portable grinder or other suitable device, place an approximately 3⁄8”- to 5⁄8”long smooth assembly chamfer or bevel on the outside end of the pipe. This bevel should make an angle of 30-40° with the axis of the pipe. Care should be taken to ensure that...

AMERICAN Fast-Grip® Gasket Assembly Instructions—Continued Fast-Grip gasketed joints requiring a particular orientation (such as with bends) should be assembled in the intended service position. In some instances, this may be accomplished more easily by first assembling the bend on a pipe above the trench. The jointed bend and pipe may then be lowered (orienting as required) and assembled into place. Relative rotation of joint members to one another after assembly is not recommended as it could cause damage or leakage. See Push-On Fittings Assembly Instructions in Section 4. Disassembly...

AMERICAN Ductile Iron Flex-Ring® Joint Pipe Centrifugally Cast for Water, Sewage, or Other Liquids 4”-12” Flex-Ring® Joint AMERICAN Flex-Ring® Restrained Joint Ductile Iron pipe, utilizing the sealing features of the time-proven Fastite® Joint and a boltless restrained connection, provides flexible, easily assembled, positive restraint against endwise separation due to thrust. The patented1 Flex-Ring Joint is designed for a working pressure2 equal to that of the pipe or up to 350 psi in sizes 4”-24” and up to 250 psi in sizes 30” and 48”. The joint has been thoroughly factory tested to...

AMERICAN Ductile Iron Flex-Ring® Joint Pipe Centrifugally Cast for Water, Sewage, or Other Liquids No loose lugs, heavy wedges, rubber tubes, etc. are necessary. Also, there is no need to orient bells to ensure proper installation, though for convenience, most installers orient the split locking ring ends in 4”-12” sizes away from the very bottom of the joints. Just follow the simple instructions shown on the following pages, and positive restraint is ensured. Flex-Rings, Flex-Ring segments, and retainer rings are manufactured of ductile iron compatible with pipe. Welds and weld beads (if...

AMERICAN Ductile Iron Flex-Ring® Joint Pipe Standard Dimensions and Pressure Ratings 14”-48” Nominal Laying Length** ft. B F Allowable A Pulling O.D. Socket Bell Load in. Depth O.D.† in. in. lb.†† Allowable Deflection degree Empty Pipe Buoyancy in Water (lb/ft)^^ –5 –2 * Working pressure is the maximum pressure rating of the joint and is based on its capability to resist thrust due to internal pressure. If higher working pressure is required, check AMERICAN. ** Laying length is nominal 20’. Where exact lengths are required, contact AMERICAN. Minimum laying lengths for Flex–Ring & Flex–Ring...

AMERICAN Ductile Iron Flex-Ring® Joint Pipe Assembly Instructions 4”-12” Prior to joint assembly, remove the packing material holding the split flex-ring onto the pipe. (See “Field Assembly of Flex-Ring” if split flexring is shipped separately.) Thoroughly clean the socket locking groove as well as the Fastite gasket recess and pipe plain end. In accordance with standard Fastite joint assembly instructions, insert the gasket and lubricate the pipe plain end, bevel, and inside surface of the gasket. With the pipe in essentially straight alignment, assemble the plain end into the Flex-Ring...