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3.1.3 Coax Connector Coupling These connectors are designed to connect two flexible pipe sections fitted with coax pipe couplings. This is ideal when using extra -long piping runs and when connecting short lengths of flexible piping together. They can be direct buried, so containment sumps are not required. 3.1.4 Coax Tee Fitting These tee fittings may be used in two different applications. The first application is to connect two sections of OPW-FCS's flexible piping fitted with coax couplings to a riser pipe. This application is used in any configuration where connection of a tee to a standard threaded riser pipe or flex connector is needed. Connection to a threaded riser pipe requires the use of a coax riser pipe adapter or riser jacket kit described later in this publication. The second application for coax tee fittings is to branch three. sections of flexible pipe. 3.1.5 Coax Test Cap Coax test caps are used to test the integrity of each primary & secondary pipe 40 section. See section 5.5 for more details. 3.1.6 Coax Elbow Fitting These elbow fittings may be used in two different applications. The first application is to connect a section of OPW-FCS's flexible piping fitted with a coax coupling to a riser pipe or flex connector. This application is used to terminate a piping run with a standard threaded riser pipe. Connector to a threaded riser pipe requires the use of a coax riser pipe adapter or riser jacket kit described later in this publication. The second application for coax elbow fittings is to connect two sections of flexible piping fitted with coax couplings. This is useful when a sharp 90° degree turn is required. 3.1.7 Coax Riser Pipe Adapter These adapters contain a female pipe thread on one side and a custom coaxial male face w/0 -rings to accept coax fitting at the opposite end. These adapters are used with coax tee fittings and coax elbow fittings where interfacing with a standard threaded riser pipe or flex connector required. 3.1.8 Coax Riser Kit The coax riser kit is used when isolation of a partial length of the riser pipe is required. The kit consists of a coax riser pipe adapter, coax riser adapter, two riser pipe nuts, coax riser plug w/0 -rings, seals and a 36" length of coax riser jacket. The coax riser jacket is a UL listed, nonmetallic stand-off jacket that provides isolation from the environment as well as interstitial space for monitoring. Slav _*WORKS BY OPW FUELING CONTAINMENT SYSTEMS 3.1.9 Coax Shear Valve Kit The coax shear valve kit is used when the isolation of the full length riser pipe is required in a direct burial application. The kit consists of a coax riser adapter, coax shear valve adapter, two riser pipe nuts, one extra long riser adapter nut, coax riser plug w/0 -rings, seals and a 36" length of coax riser jacket. The coax riser jacket is a UL listed, nonmetallic stand- off jacket that provides isolation from ground environment as well as interstitial space for monitoring. 2" male NPT base - threaded shear valves such as those available through OPW- FCS, are required for the coax shear valve kit. 3.2 Swivel Couplings & Fittings Swivel couplings & fittings are of a single wall design and are used to interconnect OPW-FCS's flexible piping. These UL® listed stainless steel couplings and fittings may not be directly buried and must be installed within containment sumps. Double wall piping requires the use of rubber test boots to seal -off the interstitial space of double wall flexible piping. For flexible double wall piping applications which are routed in series, the metallic junction tees should be fitted with connector tubes to permit the interstitial space of the piping to bypass the single wall coupling and fitting. Swivel fittings are standard in NPT threads. The metallic couplings & fitting components are available in 3/4", 1, 1-1/2", 2" and 3" sizes and are illustrated below: