Recordall® Disc Meter
Cold Water Top Load Bronze, Size 1-1/2" (40 mm) NSF/ANSI Standard 61 Certified, Annex G
DESCRIPTION
Badger Meter Meter offers the Recordall Disc meter in Cast Bronze and a Lead-Free Alloy. The Lead-Free Alloy (Trade designation: M120-LL) version has been certified to comply with NSF/ANSI Standard 61, Annex G and carries the NSF-61 Mark on the housing. All components of the Lead-Free Alloy meter, i.e., disc, chamber, housing, seals, etc. comprise the certified system.
Applications
For use in measurement of potable cold water in residential, commercial and industrial services where flow is in one direction only.
Operation
Water flows through the meter's strainer and into the measuring chamber where it causes the disc to nutate. The disc, which moves freely, nutates on its own ball, guided by a thrust roller. A drive magnet transmits the motion of the disc to a follower magnet located within the permanently sealed register. The follower magnet is connected to the register gear train. The gear train reduces the disc nutations into volume totalization units displayed on the register dial face.
Operating Performance
The Badger Meter Recordall Disc meters meet or exceed registration accuracy for the low flow rates (95%), normal operating flow rates (100 ± 1.5%), and maximum continuous operation flow rates as specifically stated by AWWA Standard C700.
Construction
Badger Meter Recordall Disc meter construction, which complies with ANSI/AWWA standard C700, consists of three basic components: bronze meter housing, measuring chamber, and permanently sealed register. A corrosion-resistant lead-free material is used for the measuring chamber.
To simplify maintenance, the register, measuring chamber, and strainer can be replaced without removing the meter housing from the installation. No change gears are required for accuracy
calibration. Interchangeability of parts among like-sized meters also minimizes spare parts inventory investment.
Magnetic Drive
Direct magnetic drive, through the use of high-strength magnets, provides positive, reliable and dependable register coupling for straight-reading or automatic meter reading options.
Sealed Register
The standard register consists of a straight-reading odometer-type totalization display, 360° test circle with center sweep hand and flow finder to detect leaks. Register gearing consists of self-lubricating engineered polymer gears to minimize friction and provides
long life. Permanently sealed; dirt, moisture, tampering and lens fogging problems are eliminated. Multi-position register simplifies meter installation and reading. Automatic meter reading systems are available for all Recordall Disc meters. All reading options are removable from the meter without disrupting water service.
Tamper-Proof Features
Customer removal of the register to obtain free water can be prevented when the optional tamper detection seal wire screw or TORX® tamper resistant seal screw is added to the meter. Both can be installed at the meter site or at the factory.
Model 120 shown with optional 1" Test Plug
Maintenance
Badger Meter Recordall Disc meters are designed and manufactured to provide long-term service with minimal maintenance. When maintenance is required, it can be performed easily either at
the meter installation or at any other convenient location. As an alternative to repair by the utility, Badger Meter offers various maintenance and meter component exchange programs to fit the needs of the utility.
Connections
Tailpieces/Flanges for installations of meters on various pipe types and sizes, including misaligned pipes, are available as an option.
SPECIFICATIONS
Typical Operating Range |
2.5…120 gpm (0.57…27 m3/hr) |
(100% ± 1.5%) |
|
Low Flow (Min. 95%) |
1.25 gpm (0.28 m3/hr) |
Max. Continuous Operation |
80 gpm (18 m3/hr) |
Pressure Loss at Max. |
4.8 psi at 80 gpm (0.33 bar at 18 m3/hr) |
Max. Operating Temperature |
80° F (26° C) |
Max. Operating Pressure |
150 psi (10 bar) |
Measuring Element |
Nutating disc, positive displacement |
Register Type |
Straight reading, permanently-sealed |
|
magnetic drive standard. AMR/AMI units |
|
optional. |
Registration |
100 gallons, 10 cubic feet, 1 m3, 0.1 m3 |
Register Capacity |
100,000,000 gallons |
|
10,000,000 cubic feet, 1,000,000 m3 |
|
100,000 m3 |
|
6 odometer wheels |
Meter Connections |
1-1/2" AWWA two bolt elliptical |
|
flange, drilled or 1-1/2…11-1/2 NPT |
|
internal pipe threads. |
Test Plugs |
1" NPT test plug (TP) available on elliptical |
MATERIALS |
long and short versions. |
|
Meter Housing |
Cast Bronze, Lead-Free Alloy |
Housing Top Plates |
Bronze, Lead-Free Alloy |
Measuring Chamber |
Engineered Polymer |
Disc |
Engineered Polymer |
Trim |
Stainless Steel, Bronze |
Strainer |
Engineered Polymer |
Disc Spindle |
Stainless Steel |
Magnet |
Ceramic |
Magnet Spindle |
Stainless Steel |
Register Lid and Shroud |
Engineered Polymer, Bronze |
Generator Housing |
Engineered Polymer |
RD-T-1-1/2-EN (July 2012)
Technical Brief
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