What factors are more important in the selection of water meters
As a measuring instrument for trade settlement of water, the water meter has its particularity. Under the premise of meeting the basic requirements in the water meter verification regulations or passing the water meter verification, the materials used in the water meter are hygienic and durable, reliable and convenient to read, the size of the pressure loss, the convenience of maintenance and disassembly, and the adaptability to the installation site ( If it may be installed outdoors), etc. are the main performance of the water meter. ; For the large-diameter water meter used as a general meter, the pressure loss is a technical indicator reflecting the energy consumption caused by the operation of the water meter, and should be considered as an important factor.
In summary, the selection of water meters can be considered from the following points:
(1) The measurement is accurate and reliable;
(2) Adapt to the water quality conditions of the pipe network and are durable;
(3) Simple structure and high cost performance;
(4) Large flow capacity and small head loss;
(5) The starting flow value, the small flow value and the boundary flow value are all low;
(6) Easy to repair, easy to adjust, and low maintenance cost;
(7) Small size, light weight, easy disassembly and assembly;
(8) The meter reading is accurate and convenient, and is matched with local management.
Some of the above factors are contradictory. When choosing, the advantages and disadvantages should be analyzed according to the actual situation.