(1) Most water meters have installation method requirements. The H on the dial or the nameplate represents horizontal installation, and V represents vertical installation. The absence of these two symbols means that it can be installed in any direction. The dial of the water meter should be upward and not inclined. The flow direction of the water meter should be consistent with the flow direction of the water in the pipeline. Some water meters (such as volumetric water meters, etc.) can be installed in any direction.
(2) The water meter should be installed in such a way that the direction of the arrow on the watch case is consistent with the flow direction of the water in the pipe, and it should be installed coaxially with the pipe.
(3) The dial of a horizontally installed water meter generally faces upwards without tilting. The direction of the indicator dial of the reading water meter cannot be adjusted based on the convenience of reading. Note: Some dry water meter fishing reading indicators can be rotated 360' to facilitate reading. When the water meter is installed vertically or obliquely, the impeller shaft and the centerline of the pipe must be kept parallel.
(4) The straight pipe sections upstream and downstream of the water meter must meet the requirements of the instruction manual. This is especially important for speed water meters. Horizontal screw-wing water meters and single-stream water meters have special requirements for straight pipe sections. The downstream of the water meter should be higher than the water meter (such as a faucet) or maintain a certain pressure, so that the water meter always runs under the condition of a pipe full of water.
(5) There should be any pipeline position downstream of the water meter higher than that of the water meter to ensure that the water meter works under the condition of full pipe flow.
