L Pack L1 Pre-Column (Pre-Purification Cartridge for Ultra-Pure Water Systems)
| Brand | Deepflow |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Regional Category | Domestic (PRC) |
| Model | CYRPK0L0S1 |
| Pricing | Available Upon Request |
Overview
The L Pack L1 Pre-Column is a dedicated pre-purification cartridge engineered for integration into ultra-pure water (UPW) generation systems used in analytical laboratories, pharmaceutical QC environments, and semiconductor-grade water facilities. Designed as a front-end conditioning stage upstream of primary purification modules—such as mixed-bed ion exchange resins, electrodeionization (EDI) units, or ultrafiltration membranes—the L Pack L1 removes particulate matter, colloidal silica, trace organics, and residual chlorine/chloramines from feed water (typically Type II or deionized water). Its function is not to deliver final 18.2 MΩ·cm resistivity but to extend the service life and operational stability of downstream purification components by mitigating fouling, scaling, and oxidative degradation. The cartridge operates on a fixed-bed adsorption and depth-filtration principle, utilizing a dual-layer composite media architecture optimized for high flow consistency and low pressure drop across standard UPW system hydraulic profiles (0.5–2.0 L/min at ≤0.3 MPa inlet pressure).
Key Features
- Two-stage filtration design: outer macroporous layer for >5 µm particulate capture, inner functionalized granular activated carbon (GAC) + specialty anion/cation scavenger blend for organic and oxidant removal
- Consistent pressure drop: ≤0.12 MPa at rated flow (1.0 L/min), validated per ISO 4021 for inline fluid system compatibility
- Chemically resistant housing: FDA-compliant polypropylene (PP) body with EPDM gasket seals; withstands repeated sanitization cycles using 1% sodium hypochlorite or hot water (≤85°C)
- Trace-metal leaching control: certified to meet ASTM D511 and ISO 3696 Grade 1 specifications for extractables (Na⁺, K⁺, Ca²⁺, Fe < 0.1 ppb post-elution)
- Modular plug-and-play interface: standardized 1/4″ compression fittings and DIN 1988-200 compliant mounting orientation for seamless retrofit into existing Deepflow and third-party UPW skids
Sample Compatibility & Compliance
The L Pack L1 is validated for use with municipal tap water, reverse osmosis (RO) permeate, and secondary deionized water sources meeting ISO 3696 Type II or ASTM D1193 Type IV specifications. It is not intended for direct use with raw surface or groundwater without prior coarse filtration. All materials comply with USP , EU Pharmacopoeia Chapter 3.1, and FDA 21 CFR 177.1520 for indirect food contact. Batch-certified test reports include TOC reduction efficiency (>85% at 0.5 mg/L influent), chlorine breakthrough testing (≥10,000 L per cartridge at 1.0 ppm Cl₂), and endotoxin retention validation (<0.001 EU/mL effluent under challenge conditions per USP ). Full compliance documentation supports GLP/GMP audit readiness.
Software & Data Management
As a passive hardware component, the L Pack L1 does not incorporate embedded electronics or firmware. However, it is fully compatible with Deepflow’s centralized UPW monitoring platforms (e.g., AquaTrak™ v4.2 and higher), where cartridge installation date, cumulative throughput, and system pressure differential are logged via manual entry or barcode-scanned commissioning. These parameters feed into predictive maintenance algorithms that trigger replacement alerts based on real-time delta-P trends and historical service life modeling. Audit trails adhere to FDA 21 CFR Part 11 requirements when deployed within validated AquaTrak™ configurations featuring electronic signatures and immutable log archiving.
Applications
- HPLC and UHPLC mobile phase preparation where organic residue or oxidant carryover could degrade column lifetime or induce baseline drift
- ICP-MS and ICP-OES sample introduction systems requiring sub-part-per-trillion metal background and minimal carbon interference
- Cell culture media formulation labs requiring low endotoxin and low TOC water inputs per ISO 13485 and Ph. Eur. 5.1.10
- Calibration standard preparation in metrology labs accredited to ISO/IEC 17025, where reagent water purity directly impacts measurement uncertainty budgets
- Microelectronics wafer rinse stations where silica and particle load must remain below SEMI F57 limits (≤0.1 particles/mL >0.1 µm)
FAQ
What is the recommended service life of the L Pack L1 under typical lab conditions?
Under continuous operation at 1.0 L/min with RO feed water (TOC < 0.3 mg/L, Cl₂ < 0.1 ppm), the nominal service life is 6–9 months or 8,000–12,000 liters, whichever occurs first. Actual duration depends on feed water quality and is tracked via system delta-P monitoring.
Can the L Pack L1 be regenerated or cleaned in situ?
No. It is a single-use, non-regenerable cartridge. Attempted chemical cleaning compromises media integrity and voids compliance certifications.
Is the L Pack L1 compatible with ozone-sanitized UPW distribution loops?
Yes—validated for intermittent exposure to ≤0.1 ppm dissolved ozone during periodic loop sanitization cycles. Continuous ozone exposure above this threshold is not recommended.
Does this pre-column affect water resistivity?
Minimal impact: typical resistivity loss across the unit is <0.05 MΩ·cm (e.g., 15.0 → 14.95 MΩ·cm), well within acceptable pre-purification stage tolerance per ISO 3696 Annex B.
Where can I obtain batch-specific Certificate of Analysis (CoA) and extractables data?
CoAs are provided digitally with each shipment via Deepflow’s TraceLink portal; physical copies accompany bulk orders. Extractables data are published in the product’s Material Qualification Dossier (MQD), available under NDA to qualified QA/QC personnel.
