China Water Treatment Equipment Manufacturers, Suppliers and Factory - Wholesale Service

Product Overview

The Ecolink ERO-IND-C series is a skid-mounted industrial reverse osmosis water treatment system engineered for high-purity water generation in heavy industrial process environments. Utilizing heavy-duty 304/316L stainless steel piping matrices and modular pressure vessel racks, this system achieves a continuous Total Dissolved Solids (TDS) reduction of up to 99.5%. The unit integrates multi-stage industrial centrifugal pumps, automated Clean-In-Place (CIP) recirculation loops, and a Siemens PLC-based control architecture to sustain stable permeate output under fluctuating raw water conditions.

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Industrial Reverse Osmosis System
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Product Specifications

Technical Parameter	Engineering Specification	Standard / Compliance
Permeate Flow Rate	5 to 100+ cubic meters per hour (Configurable per skid module)
Salt Rejection Rate	>= 99.2% to 99.5%	Nominal under standard test conditions (25°C)
System Recovery Rate	75% to 85%	Field-adjustable via reject control valves
Design Feedwater TDS	<= 2,000ppm	Higher salinity requires custom pretreatment design
Membrane Configuration	8-inch Spiral-Wound Elements	Thin-Film Composite (TFC) Polyamide
High-Pressure Pump	Vertical Multi-Stage Centrifugal	Grundfos / Danfoss (SS316 wetted components)
Skid Frame Construction	Structural Carbon Steel	Abrasive Blasted to Sa 2.5 + Marine Epoxy Coating
Low-Pressure Piping	Schedule 80 PVC / UPVC	ASTM D1785
High-Pressure Piping	Seamless 316L Stainless Steel	ASTM A269 / Electropolished inner surface
Control Architecture	Siemens S7-1200 PLC + 7-inch HMI	Modbus TCP / Profinet communication protocol

Key Features

Modular Skid Framework:

Delivered as a pre-piped, pre-wired, and hydrostatically tested assembly on a single structural steel skid, reducing on-site installation labor and footprint.

Precision Instrumentation Loop:

Inline electromagnetic flow meters, digital pressure transmitters, and temperature-compensated conductivity sensors feed real-time operational metrics directly to the PLC.

Hydraulic Protection Interlocks:

Low-inlet pressure switches, pump thermal overload relays, and automatic high-pressure bypass valves protect core components from dry-run and over-pressurization failures.

DCS / SCADA Compatibility:

Standard industrial communication protocols allow seamless integration into plant-wide distributed control networks for remote monitoring and alarm logging.

Applications

Boiler Feed Water Preparation: Supplying low-TDS, low-silica makeup water to high-pressure industrial steam boilers to prevent scale deposition and turbine blade carryover.

Food & Beverage Processing: Ingredient water purification adhering to local hygienic standards and microbiological control requirements.

Chemical & Petrochemical Manufacturing: Process water supply for reaction dilution, batch makeup, and equipment rinsing loops.

Pharmaceutical Pre-Treatment: Primary purification stage supplying purified water (PW) generation loops prior to multi-effect distillation or EDI modules.

Metal Finishing & Surface Treatment: Rinse water recycling and heavy metal concentration management in electroplating facilities.

Product Selection Guide

Proper system sizing requires evaluating raw water chemistry and downstream utility demands. Apply these engineering guidelines to define your configuration:

01/

Analyze Feedwater Chemistry: Submit a complete laboratory water analysis report covering TDS, SDI, hardness, silica, and free chlorine. Raw water with a Silt Density Index (SDI) greater than 5 requires upstream media filtration or ultrafiltration (UF).

02/

Calculate Permeate Requirements: Factor in peak operational hours and simultaneous utility demands. Incorporate a 15% safety margin to account for seasonal water temperature drops (lower water temperature increases viscosity, reducing pump flux output).

03/

Determine Material Grade: Specify standard epoxy-coated carbon steel for general industrial plants. Select full 304 or 316L stainless steel for coastal, pharmaceutical, or corrosive chemical processing environments.

04/

Confirm Electrical & Control Standards: Verify local plant power supply characteristics and specify required control panel compliance (CE standard or optional UL 508A certification).

Manufacturing & Quality Control

Structural Preparation:

Skid frames undergo automatic carbon dioxide gas-shielded welding, abrasive blast cleaning to Sa 2.5, and a multi-layer epoxy coating system to withstand aggressive industrial environments.

Orbital TIG Pipe Welding:

High-pressure 316L stainless steel lines are assembled using automated orbital TIG welding with internal argon purging to eliminate weld oxidation and prevent microscopic corrosion initiation sites.

Hydrostatic Pressure Testing:

Every pressure vessel assembly and piping manifold is subjected to hydrostatic testing at 1.5 times design working pressure for a minimum of 30 minutes prior to final release.

Factory Acceptance Testing (FAT):

Fully assembled skids undergo a 4-hour dry and wet factory test cycle to verify electrical loop continuity, pump alignment, instrument calibration, and PLC logic response.

Packaging & Supply Capacity

Export Packaging Standards: Skids are securely bolted to fumigated heavy-timber export pallets, wrapped in multi-layer anti-corrosion VCI film, and sealed inside heavy-duty export plywood crates.

Component Preservation: Fragile instruments and pressure gauges are removed, individually bubble-wrapped, and packed in marked accessory boxes within the main crate.

Lead Time: Standard configurations ship within 6 to 8 weeks from engineering drawing approval. Custom Engineered-to-Order (ETO) systems require 10 to 14 weeks depending on specialized component availability.

Annual Manufacturing Capacity: Production output of 120+ standard industrial RO skids per year, supported by dedicated mechanical assembly and electrical wiring bays.

Why Choose Ecolink

Engineering-Driven Execution:

Orders are reviewed by licensed water treatment process engineers, providing complete P&ID drawings, electrical schematics, and calculated mass balance reports.

Traceable Bill of Materials:

Core components are sourced from globally recognized manufacturers (Grundfos, Dow/Filmtec, Danfoss, Schneider Electric, Georg Fischer), ensuring local spare parts availability for maintenance teams.

Compliance Ready:

Electrical control panels comply with CE/IEC standards, with optional UL 508A and ASME/PED compliance available upon project specification.

Direct Technical Support:

Direct access to factory applications engineers for commissioning guidance, troubleshooting, and remote PLC diagnostics.

Frequently Asked Questions

Q: What is the maximum acceptable SDI (Silt Density Index) for feedwater entering this RO system?

A: Feedwater SDI must be maintained below 5.0 (preferably below 3.0). Exceeding this threshold causes rapid membrane fouling, necessitating upstream multi-media filtration (MMF) or ultrafiltration (UF).

Q: Are the RO membranes loaded into the pressure vessels during shipping?

A: No. To prevent preservation chemical dry-out and biological growth during transit, RO membrane elements are shipped dry in separate factory-sealed vacuum bags and loaded on-site during commissioning.

Q: What electrical and pressure vessel certifications do you support?

A: Standard control panels are built to CE / IEC specifications. UL 508A certified panels and ASME-stamped pressure vessels are available as options for North American projects.

Q: How does the system handle low feedwater pressure conditions?

A: A low-pressure digital switch on the feed line monitors inlet pressure. If pressure drops below 1.5 bar, the PLC immediately trips the high-pressure pump to prevent cavitation and dry-running damage.

Request a Quote

To receive a detailed engineering proposal and commercial quotation tailored to your water treatment requirements, please provide the following information to our engineering team:
Feedwater source (e.g., municipal tap, well water, surface water) and complete water analysis report.
Required continuous permeate flow rate (cubic meters per hour or GPM).
Required treated water quality (target TDS or conductivity).
Preferred electrical voltage and control brand requirements.
[Submit Your Water Analysis / Request Engineering Proposal]

Shandong Ecolink Technology Co., Ltd. is one of the most reliable water treatment equipment manufacturers and suppliers in China. We warmly welcome you to wholesale bulk high quality water treatment equipment from our factory. If you have any enquiry about cooperation, please feel free to email us.