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Executive Order VR-101-D, Phil-Tite Phase I Vapor Recovery System, Exhibit 2, Page 3 capacity. The drop tube overfill device is not a required component of the vapor recovery system, but may be installed as an optional component of the system. Other requirements may apply. 2. The leak rate of the overfill device shall not exceed 0.17 CFH at 2.00 inches 1-120when tested as in accordance with the latest adopted version of TP-201.1 D, Leak Rate of Drop Tube Overfill Prevention Device and Spill Container Drain Valves. Threaded Riser Adaptor The Threaded Riser Adaptor shall provide a machined surface on which a gasket can seal and ensures that the seal is not compromised by an improperly cut or improperly finished riser. A Threaded Riser adaptor shall be installed on the following required connections. As an option, the adaptor may be installed on other connections. a. Product Spill Container(required) b. Vapor Recovery Spill Container(required) c. Tank Gauging Components (required) Ball Float Vent Valve A ball float vent valve (ball float) is designed to restrict the flow of a gasoline delivery by using back pressure when the storage tank levels exceed a specified level. If installed, a ball float must be installed at each vapor and vent connection to the tank. Ball floats are not required components of the vapor recovery system, but may be installed as optional components for vapor recovery; other requirements may apply. Vapor Recovery Riser Offset 1. The vapor recovery tank riser may be offset from the tank connection to the vapor recovery Spill Container provided that the maximum horizontal distance (offset distance) does not exceed twenty (20) inches. One example of an offset is shown in Figure 2E. 2. A vapor recovery riser shall be offset up to 20 inches horizontal distance with use of commercially available,four(4) inch steel pipe fittings, a Phil-Tite Model M 6050 Vapor Riser Offset, or a combination of the two products. An example of a Phil-Tite Model M-6050 configuration is shown in Figure 2E. Tank Gauge Port Components The tank gauge adaptor and cap are paired. Therefore, an adaptor manufactured by one company shall be used only with a cap manufactured by the same company. Connections and Fittings All connections and fittings not specifically certified with an allowable leak rate shall not leak. The absence of vapor leaks may be verified with the use of commercial liquid leak detection solution (LDS), or by bagging,when the vapor containment space of the underground storage tank is subjected to a non-zero gauge pressure. (Note: leak detection solution will detect leaks only when positive gauge pressure exists).