ULPQX Medical-Grade Pure & Soft Water System for Sterilization and Disinfection

Overview

The ULPQX Medical-Grade Pure & Soft Water System is an integrated, CE-compliant water purification and softening platform engineered specifically for Central Sterile Supply Departments (CSSD), endoscopy reprocessing units, operating theaters, pharmacy compounding labs, neonatal care facilities, and dental clinics. It employs a validated multi-stage treatment architecture—comprising pre-filtration, single- or dual-stage reverse osmosis (RO), and constant-pressure distribution—to convert municipal or groundwater (conforming to GB 5749–2022 drinking water standards) into water meeting the stringent requirements of WS 310.1–2016 “Management Specifications for Hospital Central Sterile Supply Department”. Unlike generic laboratory water systems, the ULPQX integrates softening capability (hardness ≤0.03 mmol/L) alongside RO-based purification, eliminating scale formation in steam sterilizers, washer-disinfectors, and ultrasonic cleaners—critical for compliance with ISO 15883 and AAMI ST79.

Key Features

• Automated process control with liquid-level interlock logic, enabling fully autonomous operation: system self-test at startup, low-inlet-pressure shutdown, high/low-pressure alarm triggering, phase-loss and overcurrent protection, tank-level–driven pump cycling (auto-stop at high level, auto-restart at mid-level), and scheduled membrane flush cycles.
• Enhanced pre-treatment module featuring a programmable automatic backwash valve—supporting both timed and demand-driven regeneration—with service life up to 24 months under typical hospital feedwater conditions (TDS < 300 mg/L, SDI < 5).
• Constant-pressure delivery system utilizing a digital microprocessor-based pump controller; supports manual override for maintenance or emergency bypass scenarios.
• Real-time water quality monitoring: dual conductivity sensors (influent and product water) with analog output and local digital display; calibrated per ISO/IEC 17025 traceable procedures.
• Hygienic wetted-path construction: all fluid-contact components—including pumps, pressure vessels, piping, and fittings—fabricated from AISI 304 stainless steel; RO membranes and critical electrical components (relays, solenoids) sourced from globally certified suppliers.
• Modular, panel-mounted architecture facilitating rapid installation, component-level servicing, and future scalability (e.g., UV irradiation, ozone injection, or TOC reduction modules).

Sample Compatibility & Compliance

The ULPQX system is designed for continuous operation with feedwater satisfying GB 5749–2022 (equivalent to WHO Guidelines for Drinking-water Quality). Its dual-mode output—softened water (≤0.03 mmol/L CaCO₃ hardness) and purified water (≤5 µS/cm conductivity, double-pass RO)—meets the Class I and Class II water specifications defined in WS 310.1–2016. Output water is suitable for automated endoscope reprocessors (AERs), steam autoclaves, thermal washer-disinfectors, and pharmaceutical preparation. The system’s mechanical design adheres to GB/T 19001–2016 (ISO 9001:2015) and incorporates fail-safe controls aligned with IEC 61508 SIL 2 functional safety principles. Documentation packages support GLP/GMP audits and FDA 21 CFR Part 11–compliant electronic record retention when paired with optional PLC + HMI configuration.

Software & Data Management

While the base ULPQX operates via hardwired relay logic, optional configurations include a Siemens S7-1200 PLC paired with a 7-inch resistive touchscreen HMI. This enables event logging (including alarm timestamps, pump run-hours, and sensor drift alerts), configurable password-protected parameter sets, and exportable CSV reports via USB interface. All data logs are time-stamped with NTP-synchronized RTC and retain ≥30 days of operational history. Optional audit-trail functionality satisfies requirements for regulated environments requiring traceability per ISO 13485 and Annex 11 of EU GMP guidelines.

Applications

• CSSD instrument washing and final rinse stages where low-conductivity, low-hardness water prevents spotting, corrosion, and biofilm nucleation on surgical instruments.
• Endoscopy reprocessing: supply of purified water for AER final rinse and leak testing, complying with ISO 15883-4 and SGNA standards.
• Steam sterilization: provision of soft water to boiler feed systems, minimizing scale accumulation and extending sterilizer chamber service intervals.
• Pharmaceutical compounding and IV admixture preparation requiring non-pyrogenic, low-ionic-strength water per USP .
• Neonatal intensive care unit (NICU) humidification systems and dental unit waterlines (DUWLs), where microbial growth inhibition is achieved through consistent low-mineral content.

FAQ

What water quality standards does the ULPQX meet?
It complies with WS 310.1–2016 for medical device reprocessing and produces water equivalent to ASTM D1193 Type III and ISO 3696 Grade 3 when configured with dual-pass RO.
Can the system be validated for GMP use?
Yes—its modular design, material certifications (304 SS, FDA-compliant gaskets), and optional PLC/HMI with audit trail support IQ/OQ/PQ protocol execution per ASTM E2500 and Annex 15.
Is feedwater pretreatment mandatory?
Yes. Influent must conform to GB 5749–2022; additional iron/manganese removal or chloramine quenching may be required depending on local utility data.
What maintenance intervals are recommended?
Pre-filter cartridges: quarterly; RO membranes: 24–36 months (condition-dependent); softener resin: 12–24 months; conductivity sensors: semi-annual calibration verification.
Does the system support remote monitoring?
Via optional Ethernet-enabled PLC, it supports Modbus TCP integration into facility BMS or CMMS platforms for predictive maintenance analytics.