9
3.2.2.2 Installation in moving water:
a) Static water devices must be installed in moving water (such as river
courses, reservoir areas, etc.), and the sensing surface must be
parallel to the direction of water flow. To insert steel pipes in the
water channel, the steel pipe wall is required to be slightly thicker,
and a number of small holes are punched in the pipe wall at different
heights to dampen water waves and eliminate the influence of
hydrodynamic pressure; (see Figure 4)
b) If it is a sand-gravel water bed in a clear water area, shallow burial is
better; (see Figure 5)
c) If the flow pressure is high or there is sediment in the water, see
Figure 6.
Connection Box
Flow Direction
Connection Box
Figure 4 Figure 5
