Page 206 - Water Standards
P. 206

3   0mm. For tainter gates which operate under high water head with throat type
                   slots, including eccentric⁃hinge tainter gates and hydraulic expansion seal tainter
                   gates, the maximum deviation shall be ±3   0mm and the deviation direction shall
                   be in accordance with the deviation direction of the curvature radius of water stop
                   seat base surface on the side track. The maximum tolerance of the gap between the
                   water stop seat base surface on side track and the gate leaf outer cambered surface
                   shall be no larger than 3   0mm, and meanwhile, the relative difference between
                   the radii on two sides shall be no larger than 1   5mm.
                 4) The rubber seal quality shall meet the relevant requirements of technical standards
                   of the nation. Top and lateral waterstop installation shall meet the relevant re⁃
                   quirements in Article 4   1   2  
           4   1   4  Sluice gate tests shall meet the following requirements:
               1  After installation of the sluice gates, whole⁃stroke opening and closing tests shall be
           done when there is no water. Before the tests, careful inspection shall be done to see if the
           hooks can be unhooked freely and reliably, if the filling valves can go up and down easily a⁃
           long the whole stroke and if the water stop has no leakage in the lowest position. At the same
           time, all the sundries on the gate leaves or in the slots shall be cleared away. The suspender
           connection shall be checked as well. During operation, rubber seals shall be lubricated by
           water. If conditions permit, opening and closing tests in dynamic water shall be done for
           working gates, and dynamic water closing tests shall be done for emergency gates  
               2  In a sluice gate opening and closing process, careful inspection shall be done to
           check the operation of rotating parts such as idler wheels, supporting hinges, and top and
           bottom pivots, and to see if the gates are blocked in the process of lifting or rotating, if the
           hoisting equipment is synchronous on both sides, and if the rubber seals are damaged  
               3  When the sluice gates are all in the working position, light penetration or other
           methods shall be used to check the amount of rubber seal compression. There shall be no light
           penetration or gaps. If the water stop is on the upstream side, it shall be checked after sup⁃
           porting devices have been connected with the tracks  
               4  When the sluice gates are operated under design water head, the water leakage of
           the water stop through each meter shall be no larger than 0   1L/ s.
           4   1   5  Installation of the trash rack and embedded parts shall meet the following require⁃
           ments:
               1  The embedded parts installation tolerance or maximum deviation of a movable trash
           rack shall meet the requirements of Table 4   1   5.



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