Product Overview
The Compound Series puts two metering technologies in a single body — a positive-displacement disc chamber for the low-flow tail and a turbine chamber for the high-flow peak — so a building whose demand drops to a trickle overnight and floods by day is billed fairly at both ends. Light flow bypasses up through the disc chamber; once demand climbs, rising differential pressure lifts the main valve and the bulk of the water runs straight through the turbine, with Badger’s patented changeover holding accuracy and no trigger valve in the path to stick or wear. The four sizes — 2, 3, 4 and 6 in. — reach typical operating ranges up to 2,000 gpm in lead-free bronze alloy, meet AWWA C702, and carry the NSF/ANSI 61 & 372 lead-free certification. Typical sites are hospitals, universities, residential complexes and processing plants on idle-and-peak duty; the meter reads on a sealed RCDL mechanical totalizer as standard, with HR-E LCD encoders and ORION / AquaCUE cellular AMI available as options.
Other RecordALL meters & read-out
Disc Series — nutating-disc PD, low / intermittent flow
Turbo Series — floating-rotor turbine, consistent high flow
Fire Series — UL/FM fire-service meters & assemblies
AquaCUE Cellular AMI/AMR — cellular cloud reads
Key Features & Benefits
- Two technologies, one body — a PD disc chamber captures the low-flow tail a turbine alone misses, while the turbine chamber carries the peak — full registration across the whole range
- Patented no-trigger-valve crossover — the main valve opens on differential pressure as flow climbs, and the patented changeover keeps the disc-to-turbine handoff accurate without a trigger valve in the path to foul or service
- Four sizes, lead-free bronze — 2, 3, 4 and 6 in. in lead-free bronze alloy to AWWA C702 and NSF 61/372 for billed potable cold-water service
- Built for idling-and-peaking sites — the meter for buildings that draw a trickle overnight and a flood by day, billing both fairly
- Interchangeable, serviced in line — the unitized measuring element and the sealed register lift out for service or recalibration without removing the housing from the spool
- Optional AMR/AMI read-out — a sealed RCDL mechanical totalizer is standard; HR-E LCD encoders, ORION / GALAXY and AquaCUE cellular AMI, and Itron ERT are optional
Specifications
- Measurement principle
- Compound — a positive-displacement disc chamber meters low flow while a turbine chamber records high flow in one body; as flow rises a pressure differential opens the main valve onto the turbine, and a patented design holds crossover accuracy with no trigger valve to stick or maintain
- Service
- Potable cold water in commercial and industrial service, one direction only, at sites that swing rapidly between very low and very high demand
- Standards & certifications
- Meets or exceeds AWWA C702; certified to NSF/ANSI Standards 61 & 372 (Trade Designation LL-NS) and compliant with the Safe Drinking Water Act lead-free provisions, with the NSF-61 mark on the housing
- Sizes
- 2, 3, 4 and 6 in. (50, 80, 100, 150 mm)
- Models
- Compound Series 2, 3, 4 and 6 in.
- Operating (normal) range
- Typical operating range by size (100% ± 1.5%) — 0.5–200 (2 in.), 0.5–450 (3 in.), 0.75–1,000 (4 in.) and 0.75–2,000 gpm (6 in.)
- Low-flow registration
- 95% minimum at 0.25 gpm (2 & 3 in.) and 0.375 gpm (4 & 6 in.)
- Max continuous flow
- 170 (2 in.), 400 (3 in.), 800 (4 in.) and 1,500 gpm (6 in.)
- Accuracy
- Meets or exceeds AWWA C702 registration accuracy at low, normal, maximum continuous and changeover flow rates; minimum crossover accuracy 97% (2–4 in.) and 95% (6 in.)
- Pressure / head loss
- At maximum continuous flow: 5.4 psi (2 in.), 6.0 psi (3 in.), 11.0 psi (4 in.) and 9.3 psi (6 in.)
- Housing material
- Lead-free bronze alloy housing and cover; thermoplastic measuring chamber, disc and rotor; 316 stainless rotor bearing pivots on sapphire-jewel thrust bearings
- Measuring element
- Three components — a disc measuring chamber, a turbine head assembly and a high-flow valve assembly, with magnetic-drive coupling to the register; interchangeable and removable without removing the housing from the line
- Temperature rating
- Potable cold water — maximum operating temperature 105°F (41°C)
- Working pressure
- Maximum operating pressure 150 psi (10 bar)
- Strainer
- A separate strainer is required upstream for flow conditioning and to protect the measuring element
- End connections
- Class 150 flanged ends — 2 in. elliptical or round, 3/4/6 in. round; companion flanges available in cast iron or NL bronze (optional)
- Read-out / registers
- Standard sealed, tamper-resistant sweep-hand RCDL mechanical totalizer (six-wheel, 100,000,000-gal capacity, leak-detecting flow finder); optional HR-E LCD encoders for AMR/AMI — all removable without disrupting water service
- AMR / AMI
- Optional — ORION and GALAXY AMR/AMI and AquaCUE cellular cloud reads; Itron ERT reading systems also available
- Serviceability
- Registers and the interchangeable measuring elements remove without removing the meter housing from the line
Common Applications
- Hospitals with overnight idle and daytime peaks
- Universities and large campuses
- Residential and apartment complexes
- Manufacturing and processing facilities that idle off-shift and peak in production
- Billing points that must capture both the low-flow tail and high-flow peaks
Where flow is consistently high, a Turbo Series turbine alone is simpler and cheaper; where it is low and intermittent, the Disc Series is enough — the Compound earns its place only on genuinely wide-swing demand.
Design & Selection Considerations
- Size to the demand profile, not just the pipe — the family follows the flow pattern, not the pipe diameter: the Disc Series for low-to-medium, intermittent flow that reads down to a trickle; the Turbo Series for consistent medium-to-high flow at low pressure loss; the Compound Series where demand swings between very low and very high in one body; and the Fire Series for UL/FM fire-protection mains. Use the input form to send the normal and peak flow with the line size and we’ll size the meter.
- Protect the measuring element with a strainer — grit and debris are what pull a turbine or compound reading off and wear the bearing. The Turbo carries an integral strainer as standard on the 1-1/2 in. size and as an option on 2–4 in.; for the larger and fire lines an external plate strainer (bronze NSF, steel or UL-FM, 2–12 in.) protects the element upstream. Use the input form to tell us the water quality and we’ll spec the strainer with the meter.
- Decide the read-out and AMI up front — the same meter takes a sealed mechanical RCDL totalizer, an HR-E LCD encoder, an ER counter, a PFT pulse / 4–20 mA transmitter, or AquaCUE cellular AMI/AMR — and any register or encoder lifts off without disrupting water service. Use the input form to tell us how you read it (local, PLC / SCADA, or cloud) and we’ll match the read-out.
- Lead-free and AWWA compliance is built in — every family meets its AWWA standard (Disc C700 / C710, Turbo C701 Class II, Compound C702, Fire C703) and is certified to NSF/ANSI/CAN 61 & 372, carrying the NSF-61 mark on the housing, and complies with the Safe Drinking Water Act lead-free rule. For a potable-water spec we confirm the certified configuration on the order.
- Service it in line — on every family the register or encoder and the unitized measuring element lift out for service or recalibration without removing the meter housing from the line, so the spool stays in place and downtime stays short. We can quote spare elements and registers so a swap is minutes.
To size & select the right compound-series meter:
Use the input form to send the line size, your normal and peak flow, and how you read it — a local total, a PLC / SCADA signal, or cellular AMI — and we’ll size the meter, the read-out and any strainer or AMI endpoint to the application.
Flow Meter Application Sheet ›Talk to an engineer directly — Scott Prater, Principal · 917-580-0878 · scott@pratertechnical.com
Specifications compiled by Prater Technical Partners from Badger Meter RecordALL commercial & industrial water-meter product literature.