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Flexible • • • • • • Manual environ 13.1 Coax Couplings & Fittings Coax couplings&fittings are a double wall design and are used to interconnect GeoFlex®-D,GeoFlex®-S and GeoVent-piping.These UL®listed composite couplings and fittings may be direct buried and are not necessarily required to be contained within containment sumps. Used with GeoFlex-D double wall piping,coax couplings and fittings permit the entire flexible piping system, including riser pipes and shear valves,to be secondarily contained,tested and monitored. The coax couplings&fittings are illustrated below. Air Shear Valves\ Shear Valves\ Fitting\ 1 Coax Shear Valve Steel Riser - Adapter Pipes Riser Coax Riser Jacket /Pipe Adapter Test Tube Coax Riser Riser Pipe Jacket Coax � Coax Pipe Adapter Shear Valve 1' Connector Adapter Kit Coax J Coax Male Riser Adapter Kit Coax Pipe Coax Tee Coupling Fittings Coax Elbow GeoFlex Piping Fitting 3.1.1 Coax Pipe Couplings 3.1.5 Coax Elbow Fitting These couplings provide a means of connection These elbow fittings may be used in two different from GeoFlex®piping to coax fittings and adapters. applications. The first application is to connect a Coaxial pipe couplings attach to a flexible pipe section of GeoFlex piping fitted with a coax section using the GeoF/ex Coupling Machine.Each coupling to a steel riser pipe.This application is 110 coupling assembly includes a stainless steel insert used to terminate a piping run with a standard threaded riser pipe.Connection to a threaded riser with two 0-rings, ferrule with one 0-ring, and a pipe requires the use of a coax riser adapter or riser jacket kit described swivel nut.Available for both single wall and double wall applications. later in this publication.The second application for coax elbow fittings is NOTE: Coax couplings require a different coupling machine to connect two sections of GeoFlex piping fitted with coax couplings. face plate than is used with the swivel couplings. This is useful when a sharp 90'degree turn is required. 3.1.2 Coax Pipe Adapters 3.1.6 Coax Riser Pipe Adapter These stainless steel adapters contain a female These adapters are designed to connect one end pipe thread on one side and a custom coaxial �. of a flexible pipe section fitted with a coax pipe coupling to a 2"NPT threaded female coupling or male face to accept coax fitting at the opposite R- end.These adapters are used with coax tee fittings fitting.The adapter has a 1/4" threaded and plugged test port for future installation of coax and coax elbow fittings where interfacing with a test tube for testing the interstitial space of the standard threaded riser pipe is required. GeoFlex-D piping. 3.1.7 Coax Riser Kit 3.1.3 Coax Connector Coupling The coax riser kit is used when isolation of a partial length of the riser pipe is required.The kit consists These connectors are designed to connect two of a coax riser pipe adapter,coax riser adapter,two flexible pipe sections fitted with coax pipe riser pipe nuts, coax riser plug w/0-rings, seals couplings. This is ideal when using extra-long and a 36"length of coax riserjacket.The coax riser piping runs and when connecting short lengths of jacket is a UL listed, nonmetallic stand-off jacket flexible piping together. They can be direct buried, that provides isolation from the environment as so containment sumps are not required. well as interstitial space for monitoring. 3.1.4 Coax Tee Fitting 3.1.8 Coax Shear Valve Kit These tee fittings may be used in two different The coax shear valve kit is used when the isolation applications.The first application is to connect two of the full length riser pipe is required in a direct sections of Geoflex piping fitted with coax burial application.The kit consists of a coax riser couplings to a steel riser pipe.This application is adapter,coax shear valve adapter,two riser pipe fused in any configuration where connection of a ;ee to a standard threaded riser pipe is needed. nuts,one extra long riser adapter nut,coax riser plug w/0-rings, seals and a 36" length of coax Connection to a threaded riser pipe requires the riser jacket. The coax riser jacket is a UL listed, use of a coax riser adapter or riser jacket kit described later in this nonmetallic stand-off jacket that provides isolation from ground publication. The second application for coax tee fittings is to connect environment as well as interstitial space for monitoring. 2" NPT base- three sections of GeoFlex piping fitted with coax couplings. threaded shear valves are required for the coax shear valve kit. 3