Description
Construction -The Compound Meter (CM) consists of a Turbine meter and a Positive Displacement meter. The Turbine meter is composed of four basic components: Main case, measuring element, register housing and one of three register options depending on how the meter will be read (Direct Read, AMR, or AMI). The main case is constructed of epoxy coated cast iron. The measuring element consists of a rotor, straightening vanes, accuracy regulator, spindles, gears and a drive coupling assembly. Rotor rotation is transmitted through magnetic coupling to the register gearing. The Positive Displacement meter main case is made of Bismuth BiAlloy CDA89836 or EnviroBrass™ II C89520. The measuring chambers are made of suitable engineering plastics to meet AWWA C700 standards.
Lead Free Main Case – The meter main cases are in compliance with NSF / ANSI 61 standards and the Safe Drinking Water Act (NSF 372). The serial number is permanently marked on the body along with the size, direction of flow and manufacturer (RG3).
Performance – The CM combines the advantages of a Turbine meter and a Positive Displacement meter to yield a highly accurate totalization over extreme flow ranges. The CM Meter complies with AWWA Standard C702 .
Test Plug – Test plugs are standard on all sizes.
Maintenance – The CM is designed to provide longterm service with minimal maintenance. When maintenance is required , the meter can remain in place and the measuring element with integral straightening vanes can be removed, repaired or replaced. Pre-tested and calibrated measuring elements are available for exchange or purchase.
Characteristics– Meets or exceeds latest revision of AWWA C700 Dimensional Standards. Rated at 120˚F.
Magnetic Drive – Meters use high strength magnets to provide positive, reliable and dependable register coupling.
