Yokohama Waterworks Commemoration Hall / Types of water meter1
Yokohama was the first city in Japan in which a modern waterworks system was constructed. The Yokohama Waterworks Commemoration Hall and Waterworks Technology Commemoration Hall displays materials and videos that present how Yokohama's waterworks system was developed. (For more information, see the February 2010 issue of the PR magazine pla-topia.) http://www.city.yokohama.lg.jp/suidou/kyoku/torikumi/suidou-pr/kinenkan/
(1) Tangential-flow-impeller type (permits meter reading on a centralized meter-reading
?? panel remote from the actual meters)
(2) Tangential-flow-impeller type (features a plastic internal mechanism)
(3) Rotary piston type (used as a test meter)
(4) Tangential-flow-impeller type (issues flow rate information electronically)
(5) Tangential-flow-impeller type (single-case meter used all over the country)
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Types of water meters | |
Plastic parts making up a tangential-flow-impeller water meter |
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Current tangential-flow-impeller type | |
Auxiliary stop cock |