01 · Raw water
Define the feed conditions
Share the source, recent water analysis, available flow, pressure and temperature. Include seasonal variation or changes in the feed supply that may affect the duty.

Flowell Commercial RO 0.5 m³/h
A practical project brief
Bring a recent water analysis, source-water supply information and the intended treated-water duty. Review the treatment stages, operating conditions and practical requirements for installation and repeat supply.
01 · Raw water
Share the source, recent water analysis, available flow, pressure and temperature. Include seasonal variation or changes in the feed supply that may affect the duty.
02 · Treated duty
Identify the intended use and target water quality, daily volume, peak draw, operating hours and storage requirements. Agree how treated-water suitability will be assessed.
03 · Pretreatment & consumables
Review pretreatment media, cartridge and membrane specifications, backwash or regeneration needs and replacement demand against the water analysis and model instructions.
04 · Installation & service
Confirm installation responsibilities, service access, electrical supply and drains for concentrate and backwash. Include consumable availability and ongoing maintenance in the project brief.
500 L/h rated at 25 °C
220–240 V single phase · 2.2 kW
Sand · Carbon · Softener · 5 µm · RO
PLC + 7" touchscreen
Stainless frame on castors
1400 × 700 × 1730 mm
Quoted per project
Model overview
The following specifications describe this configuration. Confirm the operating duty against the water analysis and project requirements.
Pretreatment to RO on one frame
Quartz sand, activated carbon, water softener and a 5 µm precision filter feed two 4040 RO membranes, all on one castor-mounted stainless frame.
500 L/h from mains water
Rated 500 L/h (0.5 m³/h) at 25 °C, for town or council water up to 1000 ppm TDS.
Single-phase power
220–240 VAC, 50 Hz, 2.2 kW, 10 A maximum. No three-phase supply needed.
PLC control with touchscreen
Automatic membrane flush at every start and at set intervals, a delayed high-pressure pump start, fault screens and a manual mode for service.
Automatic pretreatment
Sand and carbon filters backwash on a programmable schedule and the softener regenerates automatically, set to suit your feed water.
Readable at a glance
Feed and product conductivity, permeate and concentrate flow, feed and concentrate pressure, plus an emergency stop on the front panel.
Stainless build
Stainless frame and electrical cabinet, stainless pretreatment vessels and stainless press-fit pipework.
Clear service intervals
Published replacement guidance for every consumable, from the 3-monthly cartridge to 18-monthly sand. Talk to our Perth-based team.
Key specifications
Rated output — 500 L/h (0.5 m³/h) at 25 °C
Typical product water — 1–20 µS/cm conductivity in normal operation (depends on feed water, temperature and membrane condition)
Feed water — town or council mains water, TDS below 1000 ppm
Feed temperature — 5–38 °C
Inlet pressure — 150–300 kPa (21–45 psi), with a pressure-reducing valve upstream
Normal operating pressures — feed gauge 0.03–0.10 MPa; concentrate 0.7–1.0 MPa
Recovery and salt rejection are confirmed per project against your water analysis.
Power supply — 220–240 VAC, 50 Hz, single phase (L/N/PE)
Rated power — 2.2 kW, 10 A maximum
Enclosure rating — IP54
Control circuit — 24 V
Dimensions (W × D × H) — 1400 × 700 × 1730 mm
Construction — stainless frame and electrical cabinet on castors; stainless pretreatment vessels; stainless press-fit pipework
Shipping — wooden crate
Feed pump — stainless multistage feed pump
Stage 1: quartz sand filter — reduces sediment, rust and suspended solids; automatic backwash valve
Stage 2: activated carbon filter — reduces residual chlorine, colour and odour to protect the membranes; automatic backwash valve
Stage 3: water softener — cation resin with automatic regeneration and 60 L brine tank
Stage 4: precision filter — 5 × 20" polypropylene cartridges in a stainless housing, approx. 5 µm
Stage 5: reverse osmosis — high-pressure pump and 2 × 4040 polyamide RO membranes in stainless housings
Not fitted as standard — UV, ozone, antiscalant dosing, DI polishing
Controller — PLC with 7" colour touchscreen
Screens — Home, Process flow, Parameter settings, Manual mode, Fault information
Automatic functions — low-pressure membrane flush at every start (30–40 s); periodic preventive flush after a set run time; high-pressure pump start delay (10–20 s)
Alarms — feed pump overload, high-pressure pump overload, low feed-water pressure
Instruments — feed and product conductivity meters; permeate and concentrate flow meters; feed and concentrate pressure gauges
Panel controls — emergency stop, Main Power On, Production On/Off
Included — complete pretreatment and RO system on one frame, PLC touchscreen controls, instruments, user manual
Not included — product-water storage tank, site pipework, drains, electrical supply, installation
Installation — by a licensed plumber and a licensed electrician, to Australian and local requirements. Flowell supplies the system; installation is arranged by you.
Site needs — dry, shaded room protected from frost; about 1 m clearance; floor rated for the system and any filled tanks; separate drains for RO concentrate and filter backwash via an indirect drain or air gap
Lead time — quoted per project
Performance depends on feed-water quality, temperature, pressure and maintenance. Treated-water suitability must be confirmed by testing for the intended use.
Flowell Commercial RO 0.5 m³/h
Stage 1
A stainless feed pump stabilises the supply. Quartz sand reduces sediment, rust and suspended solids, and backwashes automatically.
Stage 2
Reduces residual chlorine, colour, odour and certain organics that would otherwise damage the RO membranes.
Stage 3
Reduces calcium and magnesium hardness to cut scaling on the membranes. Regenerates automatically from the brine tank.
Stage 4
Five 20" polypropylene cartridges, approx. 5 µm, form the final barrier that protects the high-pressure pump and membranes.
Stage 5
Two 4040 polyamide membranes reduce dissolved salts. Purified water goes to your storage tank; concentrate goes to drain.
Control panel
PLC control, readable at a glance
The 7" touchscreen shows live status for every pump and valve, a process-flow view, parameter settings and fault history. Conductivity, flow and pressure are shown on the front panel, next to the emergency stop.
Service
Known consumables, clear intervals
Backwash and softener regeneration run automatically. Replacement intervals below are general guidance; they are adjusted to your feed water and operating hours.
Site requirements
Licensed installation
Plumbing by a licensed plumber and electrical work by a licensed electrician, to Australian and local requirements. Flowell supplies the system; installation is arranged by you.
Water, power, drain
Mains feed with a PRV set to 150–300 kPa, a 220–240 V single-phase supply, and separate drains for RO concentrate and filter backwash via an indirect drain or air gap.
Space and storage
A dry, shaded room with about 1 m clearance and a floor rated for the system, plus a purified-water storage tank sized to your demand (not included).
Project
Wash-water RO · Exmouth region, WA
The project brief called for approximately 500 L/h of treated water for aircraft and equipment washing at a remote airfield in the Exmouth region. The recorded feed-water TDS was around 540 mg/L, with hard, high-alkalinity water. The specification included sand, carbon and softener pretreatment ahead of RO, on a single-phase supply.
For a similar duty, share the current water analysis, operating hours and daily and peak demand.
Documents
For project review and tender submissions.
Component documents
Available documents for named components. Certification applies to the named components, not to the complete system.
RequestFAQ
Town or council mains water up to 1000 ppm TDS, 5–38 °C, at 150–300 kPa. For bore, tank or very hard water, send us a recent water test and we will advise on pretreatment.
It is rated at 500 L/h at 25 °C. Output falls at lower water temperatures and depends on feed quality, pressure and membrane condition.
No. It runs on a 220–240 VAC, 50 Hz single-phase supply: 2.2 kW, 10 A maximum.
No. The purified-water outlet connects to a storage tank or downstream equipment sized to your demand. Tell us your daily usage and peak draw.
Flowell supplies the system and documentation. Installation must be completed by a licensed plumber and a licensed electrician.
Backwash and regeneration are automatic. Check the panel readings routinely and replace consumables on the published intervals, adjusted to your water and operating hours.
Lead time is quoted per project.
Certification applies to named components, not to the complete system. Component documents are available on request.
Trade customer?
Trade customer? Request a trade quote.
Planning a commercial water project?
Send your water test, daily demand and site details to our Perth-based team. We will come back with a configuration and a project quote.