ULUPURE ULPTX-2000DRO Hemodialysis Water Production System

Overview

The ULUPURE ULPTX-2000DRO Hemodialysis Water Production System is a fully integrated, GMP-aligned water purification platform engineered specifically for clinical hemodialysis centers requiring multi-bed, continuous supply of ultrapure water compliant with YY 0572-2015. Unlike general-purpose laboratory ultra-pure water systems, this unit implements a dual-stage reverse osmosis (RO) architecture coupled with post-treatment polishing—comprising deionization, ultrafiltration, and endotoxin-retentive final filtration—to eliminate microbiological contaminants, endotoxins, inorganic ions, and organic residues to levels mandated for extracorporeal blood treatment. Its design adheres to the fundamental principle that water used in hemodialysis is not merely a solvent but a critical therapeutic component; therefore, system integrity, real-time process monitoring, and traceable operational history are non-negotiable. The ULPTX-2000DRO operates under a closed-loop hydraulic configuration with validated flow dynamics, pressure-controlled permeate distribution, and redundant safety interlocks to prevent backflow or cross-contamination between stages.

Key Features

• Triple operational modes: Continuous production mode, standby mode with periodic recirculation, and programmable timed operation for off-peak energy optimization.
• Dual RO train with independent emergency bypass capability—enabling uninterrupted water supply during primary membrane maintenance or replacement.
• Real-time, multi-parameter online monitoring including conductivity (μS/cm), temperature (°C), differential pressure (bar), flow rate (L/min), and TOC (ppb-level optional)—all synchronized and time-stamped at 1-second intervals.
• Dual disinfection protocols: Programmable thermal disinfection (85–95°C, validated hold time ≥30 min) and chemical disinfection (peracetic acid or citric acid-based), both fully automated with cycle logging and validation report generation.
• PLC-based fault detection with tiered visual and audible alerts—categorized by severity (warning, alarm, shutdown) and mapped to root-cause diagnostics accessible via HMI interface.
• Role-based user authentication with three-tier access control (Operator, Technician, Administrator), supporting audit trail compliance per ISO 13485 and FDA 21 CFR Part 11 requirements.

Sample Compatibility & Compliance

The ULPTX-2000DRO is validated for production of three distinct water grades defined in YY 0572-2015: (1) Hemodialysis Grade Water (for dilution of concentrate and preparation of dialysate), (2) Ultrapure Water for Hemofiltration/Hemodiafiltration (requiring ≤0.1 CFU/mL and ≤0.03 EU/mL), and (3) Reuse Rinse Water (for hemodialyzer reprocessing). Feed water must conform to GB 5749 national drinking water standards. All wetted materials—including stainless steel 316L piping, EPDM gaskets, and polyamide thin-film composite RO membranes—are certified biocompatible and extractables-tested per USP . System validation documentation supports IQ/OQ/PQ execution and aligns with ISO 14644-1 Class 8 cleanroom-grade assembly practices.

Software & Data Management

Embedded industrial-grade HMI runs on a deterministic real-time OS with embedded SQL database supporting ≥12 months of full-system event logging. All water quality data—including conductivity trends, pressure differentials across RO stages, UV lamp intensity decay, and disinfection cycle parameters—are exportable in CSV or PDF format with digital signature verification. Audit trails record user logins, parameter modifications, alarm acknowledgments, and manual interventions—each timestamped with UTC and linked to authenticated operator ID. Optional integration with hospital-wide BMS or CMMS via Modbus TCP or OPC UA enables centralized facility monitoring without compromising data sovereignty.

Applications

This system serves as the primary water source for central dialysis units operating ≥20 hemodialysis stations. It supports batch preparation of acid/base concentrates, continuous on-line dialysate generation (OLG), and high-volume hemodialyzer reprocessing workflows. Its modular architecture allows seamless scalability to ULPTX-3000DRO or ULPTX-5000DRO configurations via standardized interface flanges and PLC I/O expansion. In research settings, it provides stable, low-endotoxin feed water for ex vivo blood–membrane interaction studies, biofilm formation assays under clinically relevant shear conditions, and validation of novel dialyzer membrane materials per ISO 8536-4.

FAQ

Does the ULPTX-2000DRO meet international hemodialysis water standards beyond YY 0572-2015?
Yes—it is designed to exceed AAMI/ISO 13959:2014 requirements for bacterial limits (<100 CFU/mL) and endotoxin concentration (<0.25 EU/mL), and its performance envelope is compatible with EN 14929:2015 and JIS T 0601-2-77:2020.
Can the system be validated for use in FDA-registered facilities?
Yes—the equipment includes full DQ/IQ/OQ documentation templates, material certifications (3.1 mill test reports), and electronic record functionality compliant with 21 CFR Part 11 when configured with optional digital signature module.
What maintenance intervals are recommended for RO membranes and final filters?
RO membranes require integrity testing every 6 months and replacement every 24–36 months depending on feed water SDI and chlorine exposure history; final 0.22 µm ultrafilters are replaced every 6 months or after 1000 hours of operation, whichever occurs first.
Is remote diagnostics supported?
Yes—via optional secure VPN-enabled Ethernet port with encrypted remote access for ULUPURE-certified service engineers; no direct internet exposure of control logic.