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Flexible Underground environ 3.3 Barbed Fittings Barbed fittings are of a single wall design and are used to interconnect both GeoFlex-S® and GeoFlex-D® piping. These UL® listed steel couplings and fittings may not be directly buried and must be contained within containment sumps. Because they are single wall,they require the use of rubber test boots to seal-off the interstitial space of the GeoFlex-D flexible piping. For GeoFlex-D 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. Some barbed fittings are available in NPT threads as standard or optional BSP threads. The barbed fittings are available in 1-1/2",2"and 3"sizes and are illustrated below: /Air Fitting Shear Valves Flex Connector Steel Riser Test Tube \ Pipes\ Barbed Male Barbed Pipe Barbed Tee ��'�' Barbed Clamp Barbed Adapter Connector Fitting Assembly Elbow / \ Fitting 10. GeoFlex Piping Reducer Connector Tube Test Boots 3.3.1 Barbed Male Adapters 3.3.4 Barbed Junction Tees These adapters are designed to These tee fittings are used in pressure connect one end of a flexible pipe type piping systems whereby the section to a threaded female coupling piping is routed in series. These tee or fitting. They include a two piece fittings interconnect two flexible pipe clamshell clamp and have a barbed sections at the horizontal openings to a insert on one end and male pipe steel riser pipe at the vertical opening. threads on the other end. Barbed junction tees should only be installed within dispenser sumps. 3.3.2 Barbed Female Adapters 3.3.5 Barbed Pipe Connectors These adapters are designed to connect These connectors are designed to one end of a flexible pipe section to a µMQ connect two flexible pipe sections threaded male coupling,fitting or pipe ..r.�!�y together which is ideal for use in extra nipple. They include a two piece "ai long piping runs. These connectors clamshell clamp and have a barbed cannot be directly buried and are insert on one end and male pipe required to be contained inside an threads on the other end. The adapter in-line piping sump. When used with also has a hex profile for tightening GeoFlex-D piping, test boots with purposes. connector tubes are recommended. 3.3.3 Barbed Terminating Elbows 3.3.5 Barbed Clamp Assembly These elbow fittings can be used in both pressure and suction type piping Each fitting is supplied with the systems when the piping is routed required number of barbed clamp assemblies. These stainless steel either in series or direct. These elbow s interconnect one flexible pipe clamps are designed to securely fittings fasten the GeoFlex S, GeoFlex D and section at the horizontal opening and 9011h GeoVent M piping to the fitting. connect to a steel riser pipe at the vertical opening. Barbed terminating elbows can only be installed in dispenser sumps. When used with GeoFlex-D piping,it is recommended that a test boot with a test tube be installed. 5