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� � <br /> � , <br /> � `' ' EXHIBIT B <br /> the same manner as described for corporation stops (Section 2 of this Chapter); or, they shall be <br /> of the bronze, quarter turn, cylindrical plug type as described below for water service lines larger <br /> than one inch. Three-fourths and one inch curb stops shall be provided with threads at or near <br /> the top of the body so as to receive a Minneapolis Pattern base, extension type service box. Said I <br /> threads shall be provided with a vertical channel for water drainage. Curb stops larger than one I, <br /> inch shall be installed with arch pattern base, extension type service boxes. Curb stops larger �I <br /> than one inch shall be of the cylindrical plug, closed bottom, quarter turn design with body and <br /> plug (key) cast of ASTM B62 bronze. Pressure sealing shall be accomplished by means of <br /> resilient pressure actuated seals and shall not depend on metal to metal fits whether lubricated or <br /> not for sealing properties. Pressure seals shall be of the O-ring type seated in accurately <br /> machined grooves in the plug(key)part,bearing against a smoothly machined body bore. <br /> Quarter turn operation shall be controlled by internal check lugs that are cast as integral parts of <br /> the body and plug (key). Each curb stop larger than one inch shall be individually tested by the <br /> manufacturer at both 10 psi. and 175 psi. air pressure with the valve submerged in water in both <br /> the open and closed positions. No top or port leaks are permitted in either test. <br /> 10. WATER CURB STOP BOXES. Curb stop boxes for water services shall be of the <br /> Minneapolis Pattern base, extension type, consisting of two telescoping sections, the lower of <br /> which shall be cast of ASTM A126 Grade B gray iron and shall be provided with accurately <br /> machined inside threads of corresponding size and type to those of the outside threads at the top <br /> of the curb stop body. The upper section(stand pipe) shall be made from schedule 40 steel pipe <br /> with a 1 1/4 inch minimum diameter and shall be provided with a lid made of ASTM A126 gray <br /> iron with the word "WATER" clearly cast on its top surface. Said lid shall have a cast gray iron <br /> pentagon nut and plug. The lid shall have an integrally cast bronze bushing to facilitate easy <br />