| 摘要 |
A large volume water meter having particular application for use with a fire suppression system by which to measure the volume of water consumed by a residence during periods of calm and during a fire emergency when water is supplied from a source at high speed to a sprinkler system in order to combat a residential fire. The water meter has a dual element strainer assembly including an outer strainer to trap sand and other suspended particles and an inner strainer surrounded by the outer strainer and arranged in spaced coaxial alignment therewith. An adjustable flow control turbine assembly having a rotor that is responsive to the water flow is received within the inner strainer. The turbine assembly and the dual element strainer assembly are coupled to one another within the water meter so as to produce an uninterrupted stream of water by way of radial and axial flow paths through the strainer assembly to the turbine assembly.
|
