Product Overview

This commercial reverse osmosis system purifies high-volume municipal or well feed water into low-TDS potable water for commercial and institutional facilities. Engineered for continuous operation, the skid-mounted unit integrates automated multi-stage pre-treatment, high-pressure membrane separation, and precision instrumentation to deliver consistent, high-purity water.

Technical Specifications

Core Parameter	Specification Range
Permeate Flow Rate	1,000 GPD to 10,000 GPD (3.8 m3/day to 37.8 m3/day)
Salt Rejection Rate	99.2% nominal stabilization
System Recovery	50% to 75% adjustable
Operating Pressure	150 PSI to 225 PSI (10.3 bar to 15.5 bar)
Electrical Supply	220V / 380V, 50Hz / 60Hz, 3-phase

Purification Workflow

Sediment Filtration: 5-micron depth filters capture suspended solids and particulate matter to protect downstream components.

Carbon Adsorption: Granular activated carbon removes free chlorine and organic compounds that degrade polyamide membranes.

Pressure Boosting: Vertical multi-stage centrifugal pumps increase line pressure to overcome natural osmotic resistance.

Membrane Separation: Spiral-wound semi-permeable elements block dissolved ions, heavy metals, and microorganisms.

Hardware Configuration

Booster Pump: Stainless steel centrifugal pump equipped with integrated dry-run protection.

Pressure Vessels: Seamless 304 or 316 stainless steel housings rated for 300 PSI limits.

Control Unit: Programmable Logic Controller (PLC) with an LCD interface for real-time system monitoring.

Hydraulic Piping: PVC-U schedule 80 low-pressure lines and 304 stainless steel high-pressure discharge piping.

Feed Water Requirements

Maximum TDS: Up to 2,000 ppm for standard builds; higher levels require customized pre-treatment engineering.

Free Chlorine: Below 0.1 ppm to prevent oxidation damage to polyamide membrane layers.

Silt Density Index: SDI under 5.0 verified through standard 15-minute testing protocols.

Temperature Window: Operational feed water temperature maintained between 5°C and 35°C.

Permeate Water Quality

Mineral Reduction: Achieves 95% to 98% reduction in total dissolved solids.

Microbial Barrier: Complete physical removal of bacteria, cysts, and viruses via 0.0001-micron pores.

Organics Removal: Eliminates synthetic organic compounds, herbicides, and volatile residuals.

Organoleptic Profile: Produces neutral-tasting, odorless water suitable for direct consumption.

Post-Treatment Options

UV Sterilization: Inline 254nm ultraviolet disinfection chamber inactivates residual microorganisms.

Remineralization: Calcite and corosex media reintroduces controlled calcium and magnesium to balance pH.

Polishing Filtration: Granular activated carbon stage removes trace tastes for strict institutional standards.

Degassification: Membrane degassing units or caustic dosing to stabilize low-pH permeate streams.

Target Applications

Commercial Offices: Centralized hydration stations, pantry supply lines, and beverage vending setups.

Hospitality: Hotel room supply networks, commercial kitchen food preparation, and ice maker feeds.

Healthcare: Patient ward drinking stations, clinic utility rooms, and laboratory equipment supply loops.

Educational Facilities: Campus dormitory water stations, cafeteria distribution points, and sports hydration hubs.

System Sizing Guide

Flow Calculation: Determine peak hourly and daily consumption volumes to select nominal gallon capacity.

Water Analysis: Review certified water test reports detailing hardness, iron, silica, and TDS levels.

Space Planning: Verify mechanical room footprint, ceiling clearance, and doorway access for skid dimensions.

Utility Check: Confirm local floor drain proximity and industrial electrical panel amperage availability.

Customization Options

Frame Material: Powder-coated carbon steel or full 304/316 stainless steel sanitary skids.

Instrumentation: Integration of inline pH sensors, ORP meters, and digital flow totalizers with Modbus protocols.

Dual-Pass Design: Secondary RO stage incorporation for ultra-low conductivity requirements below 10 microsiemens.

Cabinet Enclosures: Weatherproof fiberglass or steel enclosures fitted with climate control for outdoor installations.

Quality Control Protocols

Hydrostatic Testing: Pressure vessels and high-pressure piping tested at 1.5 times working pressure for 30 minutes.

Electrical Inspection: Insulation resistance and ground continuity verified against international electrical codes.

Factory Wet Testing: Complete operational dry-run and water-flow testing performed prior to skid crating.

Material Traceability: Material test reports (MTR) provided for stainless steel components and pressure vessels.

Frequently Asked Questions

Q: What is the expected lifespan of the RO membranes?

A: Under normal operating conditions with proper pre-treatment maintenance, membranes operate effectively for 2 to 3 years.

Q: How is scale formation prevented?

A: Scale prevention utilizes automated flush cycles at startup and shutdown, combined with antiscalant dosing when water hardness is elevated.

Q: Can the system operate automatically?

A: The integrated PLC controller manages tank level switches, low-pressure cutoffs, and flush cycles autonomously without manual intervention.

Q: What routine maintenance is required?

A: Routine tasks include scheduled replacement of sediment pre-filter cartridges, monitoring chemical dosing tanks, and recording pressure differentials weekly.

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Commercial Drinking Water RO System