Product Overview
The Series 4000 is the inline, flow-through impeller meter — a tangential six-bladed rotor in a molded PVC or PVDF body, 1/2 to 1 in., that drops into the line in place of an older magnetic sensor with little or no piping change. PVDF construction handles strong chemicals and ultra-pure water — documented through 40 months of continuous hot-UPW service with independently verified particle-shedding — and the meter reads better than 1% from 1 to 20 ft/sec (an enhanced low-flow version reaches 0.25 ft/sec). It offers a 3-wire 5V square wave that carries 2000 ft or a field-programmable 4–20 mA loop, and both the electronics and the impeller bearings service without opening or removing the body from the pipe.
Other Impeller plastic-line meters & electronics
PVC Tee Series 228 — Sch 80 PVC, potable & corrosive
Irrigation PVC Tee 735 — economical small-line PVC tee
Series 200 Insertion — single-point tap, 3 to 40+ in.
300-Series Flow Transmitters — 4–20 mA, scaled pulse or relay flow switch
340 BTU Energy Transmitters — flow × ΔT hydronic energy over BACnet / Modbus / Metasys
Key Features & Benefits
- Inline flow-through body — a tangential six-bladed rotor in a molded PVC or PVDF body drops into the line in place of an older magnetic sensor with little or no piping change
- PVDF for corrosives and UPW — PVDF construction handles strong chemicals and ultra-pure water, with a service-life record of 40 months running 24 hr/day in high-temperature UPW
- Clean enough for semiconductor water — independent laboratory testing confirmed superior particle-shedding against 0.1 to 1.0 micron on-wafer metallic and liquid-borne contamination, so the rotor does not foul the process
- Better than 1%, low-flow option — reads better than 1% from 1 to 20 ft/sec; an enhanced version measures down to 0.25 ft/sec on 1/2 and 3/4 in.
- Digital or 4–20 mA output — a 3-wire 5V square wave that carries 2000 ft, or a field-programmable 4–20 mA loop, into most PLC or data-acquisition equipment
- Stays sealed for service — on a UPW or chemical line you do not want to break into, both the electronics and the rotor swap without opening the pipe or pulling the body
Specifications
- Measurement principle
- Inline flow-through impeller (paddle-wheel) — a tangential six-bladed impeller in a molded flow-through body; a proprietary non-magnetic detection circuit reads flow with the electronics never exposed to the wetted path
- Service / fluids
- Corrosive liquids and ultra-pure water in small plastic lines; replaces older magnetic flow sensors with little or no piping change
- Accuracy
- Better than 1%
- Repeatability
- ±0.5%
- Flow range
- Standard 1 to 20 ft/sec; enhanced low-flow version 0.25 to 8 ft/sec (1/2 and 3/4 in.)
- Line sizes
- 1/2, 3/4 and 1 in.
- Body material
- Molded PVC or PVDF
- Wetted materials
- PVC or PVDF body; o-ring, shaft, impeller and bearing per the ordering matrix — Viton or EPDM o-rings; Tefzel impeller; UHMWPE, Tefzel or Teflon bearing; and the shaft in zirconia ceramic, tungsten carbide, 316 stainless, Hastelloy C or tantalum
- O-rings / seals
- Viton or EPDM
- Process / fluid temperature
- PVC to 140°F (60°C); PVDF to 220°F (104°C)
- Pressure rating
- PVC 350 psi at 73°F (23°C); PVDF 275 psi at 65°F (18°C)
- End connections
- PVC plain-end with Schedule 80 tailpieces; PVDF socket-weld or union — compatible with SYGEF, KYNAR, SUPER PROLINE and SANITECH systems; adapters for other plastic or metallic piping
- Signal / outputs
- Three-wire 5V DC square wave (pull-up to 20V), or a two-wire loop-powered 4–20 mA analog (field-programmable from a PC)
- Signal transmission
- The digital signal travels up to 2000 ft (609 m) without amplification
- Field serviceability
- The flow-detection electronics service or replace without opening the pipe (no exposure to wetted parts), and the impeller bearings and shaft replace without removing the sensor from the line
- Certifications
- CE tested and approved by an independent laboratory; documented 40-month continuous service in high-temperature ultra-pure water with independently verified particle-shedding (0.1 to 1.0 micron)
- Options
- PVDF body; enhanced low-flow version (1/2 and 3/4 in.); 4–20 mA analog output; upgraded shaft material (tungsten carbide, 316 stainless, Hastelloy C or tantalum); EFI foil shield or CE housing on either output
Common Applications
- Ultra-pure water (UPW) and semiconductor process lines — PVDF
- Strong-chemical and corrosive flow in plastic piping
- Replacing older magnetic flow sensors with little or no piping change
- Small-line process flow needing a 4–20 mA or pulse output
- High-purity, high-temperature plastic-pipe systems (SYGEF, KYNAR)
For potable and general corrosive duty a Sch 80 PVC Series 228 tee is the economical tee-mounted option; on larger or metal lines an insertion meter taps a single point.
Design & Selection Considerations
- Match PVC vs. PVDF to the chemistry and temperature — the body alloy sets the duty: PVC carries general corrosives to 140°F and 350 psi, while PVDF takes aggressive chemistries and ultra-pure water to 220°F and 275 psi and mates to SYGEF, KYNAR, SUPER PROLINE and SANITECH systems. Within either body the o-ring, shaft, impeller and bearing are configurable, with the shaft available in zirconia ceramic, tungsten carbide, 316 stainless, Hastelloy C or tantalum. Use the input form to give us the chemistry, temperature and piping system and we’ll spec the body and the full wetted stack.
- Use the full-bore body where an insertion meter will not fit — unlike the insertion and tee meters this is a flow-through body, so it needs no tap or insertion depth and reads the whole bore — ideal on small lines, on a tight retrofit replacing a magnetic sensor, or where a single-point insertion reading would be unreliable. It still reads best with developed flow, so give it reasonable straight run. Use the input form to tell us the line size and layout and we’ll confirm the fit.
- Lean on the verified particle-shedding for UPW — Badger documents a 40-month continuous high-temperature ultra-pure-water service life on the 4000, and independent testing verified particle-shedding from 0.1 to 1.0 micron — the reason it is specified on semiconductor and on-wafer-clean water where a fouling or shedding rotor would contaminate the process. For UPW, confirm the PVDF build and we’ll match the wetted materials to your cleanliness spec.
- Pick the output for the receiver — the 4000 carries its own electronics: a low-impedance 5V pulse, three-wire, that travels 2000 ft to a counter or PLC, or a two-wire loop-powered 4–20 mA analog that field-programs to your range. Use the input form to tell us whether the receiver wants a pulse or an analog loop and we’ll set the output.
- Service without breaking into the line — the flow-detection electronics service or replace without opening the pipe, and the impeller bearings and shaft replace without removing the body — a real advantage where a continuous high-purity or aggressive process makes a line break costly to schedule. For continuous-duty service we’ll quote the spares so a swap is minutes, not hours.
To size & select the right Inline Series 4000:
Use the input form to send your pipe size and material, the fluid with its temperature and pressure, and the flow range — with whether you need a local display, an analog or pulse output, or a Modbus / BACnet signal — and we’ll spec the insertion style or tee, the wetted materials and the electronics.
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 Data Industrial impeller flow-sensor product literature.