How many parts does the water meter consist of?
The internal structure of the traditional water meter of the traditional water meter from the outside can be divided into shell, sleeve, inner core three pieces. The shell is cast iron, water from the water inlet out through the lower part of the annular space of the shell, it is called "annulus".
On the top of the annular space "upper room" and the outlet is communicated. A filter sleeve with a hole at the bottom of the water filter out debris. The side of the sleeve is provided with two rows of round holes, the hole position coincided with the shell of the ring to room, obviously, the lower is the water inlet and outlet is arranged. In particular, the two rows of holes are round along the tangent direction diagonally to play.
Pay attention to the two rows of holes on the opposite direction. The water from the discharge hole along the tangential direction of flow in, will form a rotating water flow, it is very important for water meter. The inner core is divided into upper, middle and lower three layers, the upper is seen from the window, only the pointer and dial the most. The key is lower, there is a plastic wheel, there are many plastic blade wheel, called the "wheel".The location is right in the rotating stream formed by the lower casing hole, water impact blade wheel torque, the rotation of the impeller. The tap water was greater and more anxious, the impeller will turn faster.
