Used Applied Membranes Dual Model S-128D Seawater RO Desalination System | 25.5 GPM | 40 HP | 2020 | Plug & Play

🏭 Manufacturer

Applied Membranes, Inc.
A global leader in reverse osmosis technology, Applied Membranes designs systems for seawater, brackish water, and wastewater purification, known for durability, plug-and-play functionality, and high-recovery designs.

📝 Description

This used Applied Membranes Model S-128D is a dual-skid seawater reverse osmosis (SWRO) system offering 25.5 GPM continuous permeate capacity or up to 35 m³/day in 6-hour run mode. Designed for plug-and-play deployment, it features high-temperature-tolerant membranes, a 40 HP stainless steel feed pump, and programmable industrial microprocessor controls (I-ROC S150).

With 12 high-temp 8” × 40” membrane elements, this RO unit is ideal for challenging feedwater environments, operating at 340–540 psi (23–37 bar) and up to 10,000 ppm TDS. Features include CIP (clean-in-place) capability, auto-permeate flush, and an antiscalant injection system.

⚙️ Specifications

• Model: S-128D

• Type: Seawater Reverse Osmosis (SWRO) System

• Configuration: Dual-skid / Container-ready / Plug-and-play

• Year Built: 2020

• Permeate Capacity:

  • 25.5 US GPM (5.8 m³/h) continuous

  • ~35 m³/day when operated 6 hrs/day

• Feed Flow Rate: 51 GPM

• Recovery Rate: 50%

• Water Quality Output: < 200 mg/L TDS @ 10,000 ppm feed

• Membranes:

  • 12 × High-temp 8" × 40"

  • Tolerate up to 115°F (46°C)

• Operating Range:

  • Temperature: 60°F to 115°F (15°C – 46°C)

  • Pressure: 340–540 psi (23–37 bar)

• Pump:

  • 40 HP stainless steel RO feed pump

  • Electrical: 3/60/460V

• Additional Features:

  • Antiscalant injection system

  • Clean-in-place (CIP) system

  • Automatic permeate flush

  • I-ROC S150 industrial microprocessor (fully programmable)

• Condition: Used, excellent condition

🧪 Applications

Ideal for seawater desalination needs in:

• Remote coastal facilities

• Island or marine-based operations

• Offshore drilling support

• Resorts and eco-tourism lodges

• Military outposts

• Emergency disaster relief systems

• Industrial process water pre-treatment

• Containerized water purification units

• Fish processing or aquaculture plants

• Water utility backup for drought resilience

📦 What Products Would This Be Used For?

• Drinking water supply from seawater

• Emergency portable desalination systems

• Marine vessel freshwater systems

• Containerized or mobile water purification

• Industrial feedwater conditioning

• Resort water infrastructure

• Agricultural irrigation with treated seawater

• Water reuse pretreatment for coastal plants

• Brine reduction systems

• Desalinated water supply for remote communities

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