For use in the Denver Water Service Area

Material Specifications – 17B
for
Magnetic Drive Fire Service Type Water Meters
3 Inch Through 10 Inch Turbine Type

1. General:

All magnetic drive turbine type fire service water meters, 3 inch through 10 inch, furnished under this standard, shall be manufactured in strict accordance with the latest edition of AWWA C703, with the following additional requirements. The mainline meter and strainer must be UL-listed or FM approved. Meters main casings, internal parts, and strainers shall be designed for easy removal without disturbing the connections to the pipeline. Strainers, stainless steel mounting bolts, and flange gaskets shall be furnished with each meter.

2. Mainline Meter:

The mainline meter shall be a turbine type meter and shall comply with Denver Water material specifications MS17, Magnetic Drive Turbine Type Water Meters, and shall be UL-listed or FM approved.

3. Bypass Meter:

The bypass meter may be of the turbine type or compound type and shall comply with Denver Water Material Specifications MS-17 and MS-16 respectively. Ball valves shall be installed directly upstream of the meter and downstream of the bypass meter check valve.

4. Strainers:

Strainers shall have a removable top with flanged connections to the pipeline and to the meter. Cast iron coated with corrosion-resistant material may be used with approval of Denver Water. The internal parts of the strainer and all fasteners shall be stainless steel.

5. Automatic Valve:

The automatic valve may be of a weighted type or spring loaded type assembly and shall comply with AWWA C703.

6. Bypass Check Valve:

In addition to the requirements of AWWA C703, the bypass check valve shall have a removable top with test plug of a size suitable for the testing of the bypass meter according to AWWA test flow requirements.

7. Tests:

All meters shall comply with American Water Works Association test requirements for new coldwater turbine type water meters. Each meter shall be furnished with a tag, attached to the meter, identifying the meter by manufacturer’s serial number and the Denver Water meter number, including a bar code representation of the Denver Water meter number, and displaying the certified results of the manufacturer’s accuracy test of the meter.

8. Acceptable Manufacturers:

AMCO Water Metering Systems, Inc.: T3000 Turbine Meter with Pulser Digital Register
Badger Meters, Inc.: Recordall Turbo Series Meter with RTR Pulser Register
Hersey Meters/Mueller Group: Horizon Series Turbine Meter with ER electronic register and Itron reed switch assembly
Neptune Technology Group: HP High Performance Turbine Meter with ProRead or AutoDetect absolute encoder register
Sensus Metering Systems: Series W Turbo Meter with ECR or ICE encoder register programmed to Denver Water’s specific requirements