Deepflow CYTANKVH1A1 High-Flow Air Filter for Ultra-Pure Water Storage Tanks
| Brand | Deepflow |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | CYTANKVH1A1 |
| Pricing | Available Upon Request |
Overview
The Deepflow CYTANKVH1A1 High-Flow Air Filter is an engineered component designed specifically for integration into ultra-pure water (UPW) storage tank venting systems. It functions as a critical final barrier against atmospheric contamination—preventing ingress of airborne particulates, microorganisms, and volatile organic compounds (VOCs) while enabling controlled pressure equalization during water drawdown or fill cycles. Unlike generic compressed-air filters, the CYTANKVH1A1 employs a dual-stage filtration architecture: a hydrophobic polytetrafluoroethylene (PTFE) membrane with ≤0.2 µm absolute pore rating for microbial retention, followed by an activated carbon pre-filter layer to adsorb chlorine, ozone, and low-molecular-weight organics that could compromise resistivity (>18.2 MΩ·cm) and total organic carbon (TOC) specifications (<5 ppb). Its design adheres to principles defined in ASTM D1193-20 (Type I reagent water) and ISO 3696:1987 (Grade 1 water), supporting compliance in pharmaceutical, semiconductor, and analytical laboratory environments where UPW integrity directly impacts assay validity and process yield.
Key Features
- High-flow capacity: Optimized pleated PTFE membrane geometry supports airflow rates up to 15 L/min at <0.5 bar differential pressure—enabling use in tanks ≥500 L without flow restriction or tank vacuum formation.
- Hydrophobic & non-shedding construction: Certified non-pyrogenic PTFE membrane meets USP bacterial endotoxin limits (<0.25 EU/mL) and exhibits zero fiber shedding under ISO 14644-1 Class 5 cleanroom conditions.
- Integrated carbon pre-filter: Granular coconut-shell activated carbon layer (15 g mass loading) provides >95% removal efficiency for residual chlorine (0.05–0.5 ppm) and ozone (≤0.1 ppm), validated per ASTM D6729-22.
- Autoclavable housing: FDA-compliant polypropylene (PP) body rated for repeated steam sterilization at 121°C, 20 min (ISO 17665-1), preserving filter integrity across multiple validation cycles.
- Pressure-relief safety function: Built-in calibrated rupture disc activates at 0.8 bar overpressure, preventing tank deformation during rapid thermal expansion or pump-back events.
Sample Compatibility & Compliance
The CYTANKVH1A1 is compatible with all standard UPW storage configurations—including stainless steel (316L), polyethylene (PE), and fluoropolymer-lined tanks—and interfaces seamlessly with common tank vent manifolds (1/4″ NPT, 3/8″ compression, or sanitary clamp). It complies with key regulatory frameworks governing water quality in regulated industries: it supports adherence to USP “Water for Pharmaceutical Purposes”, EP 2.2.43 “Water for Injection”, and FDA 21 CFR Part 211 (cGMP) requirements for environmental monitoring and system qualification. Full documentation—including Certificate of Conformance, extractables testing report (per USP ), and bioburden challenge data (Bacillus subtilis spores, 10⁶ CFU)—is provided with each unit to facilitate IQ/OQ/PQ protocol development.
Software & Data Management
As a passive mechanical filtration device, the CYTANKVH1A1 does not incorporate embedded electronics or firmware. However, its operational status is fully trackable within integrated UPW system monitoring platforms via external pressure differential sensors (e.g., connected to Siemens Desigo CC or Emerson DeltaV DCS). Recommended maintenance intervals (typically every 6–12 months, depending on ambient air quality per ISO 14644-1 Class 7–8 environments) are programmable into CMMS systems such as IBM Maximo or SAP PM. Filter replacement events trigger automatic log entries with timestamp, operator ID, and batch traceability—supporting audit readiness for GLP, GMP, and ISO/IEC 17025 assessments.
Applications
- Pharmaceutical manufacturing: Maintaining TOC and conductivity stability in WFI (Water for Injection) and Purified Water distribution loops.
- Semiconductor fab UPW polishing loops: Preventing nanoscale particle deposition on 300 mm wafers during photolithography tool supply.
- Centralized core facility water systems: Ensuring consistent resistivity in multi-user analytical labs using LC-MS, ICP-MS, and cell culture applications.
- Research-grade ultrapure water generators: Serving as the terminal vent filter for systems compliant with CLSI C3-A4 and ISO 15195:2018 reference measurement standards.
FAQ
Can the CYTANKVH1A1 be used with ozone-sanitized UPW systems?
Yes—the activated carbon layer is specifically formulated to decompose residual ozone below detection limits (<0.005 ppm), preventing membrane oxidation and maintaining long-term hydrophobicity.
Is the filter validated for sterile-grade air filtration per ISO 13408-1?
While not classified as a sterile barrier device per ISO 13408-1, its 0.2 µm PTFE membrane demonstrates ≥log 7 reduction of Brevundimonas diminuta (ATCC 19146) in independent challenge testing, satisfying risk-based justification for UPW tank venting per ISO 14644-2 Annex B.
What documentation is supplied for regulatory submissions?
Each unit ships with a serialized CoC, full extractables profile (HPLC-UV/MS), bioburden challenge report, and sterilization validation summary—structured to align with FDA eCTD Module 3.2.P.5 and EMA Annex 15 appendices.
