Multi-Channel Filtration Manifold (Stainless Steel, 3-Position and 6-Position Configurations)

Overview

The Multi-Channel Filtration Manifold is a precision-engineered vacuum filtration platform designed for parallel processing of multiple liquid samples under controlled, sterile, and reproducible conditions. Built on the principles of gravity-assisted and vacuum-driven dead-end filtration, it enables simultaneous filtration across three or six independent channels—each with isolated flow control—thereby significantly improving throughput in laboratories engaged in sample preparation for HPLC, LC-MS, biopharmaceutical purification, environmental analysis, and cell culture media sterilization. Constructed entirely from electropolished 316 stainless steel, the manifold exhibits exceptional corrosion resistance to organic solvents, acids, bases, and biological buffers, ensuring long-term structural integrity and compliance with cleanroom-compatible handling protocols. Its modular architecture supports both proprietary solvent filtration units and third-party filter funnels without adapter modification, making it a universally deployable component within GxP-aligned workflows.

Key Features

• Independent channel control via individual PTFE-coated brass valves—enabling selective activation, sequential filtration, or full parallel operation without cross-contamination risk
• Wide-mouth design (≥Φ45 mm per port) facilitating rapid visual inspection, residue removal, and thorough cleaning between runs
• Autoclavable construction validated for repeated cycles at 121°C / 15 psi for 30 minutes—fully compliant with ISO 13408-1 (sterile processing of pharmaceuticals) and USP <1211>
• Universal compatibility: accepts standard #8 rubber stoppers for secure sealing with glass, polypropylene, or PES membrane filter funnels; connects to vacuum flasks via Φ6 mm medical-grade silicone tubing with leak-tight barbed fittings
• Robust mechanical stability: low center-of-gravity chassis with non-slip rubber feet prevents tipping during high-vacuum operation (up to −95 kPa)
• Traceable manufacturing: each unit carries engraved serial number and material certification (EN 10204 3.1) for audit-ready documentation in GLP/GMP environments

Sample Compatibility & Compliance

The manifold is compatible with all standard 25–100 mL cup-style filter units using hydrophilic PTFE, nylon, PVDF, or mixed cellulose ester membranes (0.22 µm and 0.45 µm pore sizes). It accommodates both single-use and reusable funnels—including Millipore® Steriflip®, Sartorius™ Minisart®, and Pall® Acrodisc® series—without requiring custom adapters. All wetted surfaces meet USP Class VI biocompatibility requirements. The device itself does not perform filtration but serves as a regulated interface between vacuum source and filtration assembly; therefore, final sterility assurance is determined by membrane selection and upstream process validation per ISO 13408-2 and FDA Guidance for Industry: Sterile Drug Products Produced by Aseptic Processing (2004).

Software & Data Management

This is a manually operated, non-electronic instrumentation platform. No embedded firmware, software, or digital data logging capability is integrated. However, its mechanical design supports integration into digitally monitored workflows: vacuum pressure can be tracked externally using calibrated digital gauges (e.g., MKS Baratron® series), and process parameters—including start/stop timestamps, operator ID, and batch number—can be recorded manually or via LIMS-integrated electronic notebooks compliant with 21 CFR Part 11 when used in regulated environments. Calibration records for associated vacuum pumps and pressure sensors must be maintained separately per ISO/IEC 17025:2017 Clause 6.5.

Applications

• Routine sterilization of cell culture media, buffers, and reagents prior to aseptic filling
• Preparative filtration of environmental water samples (e.g., EPA Method 160.1) prior to trace metal or microbial analysis
• Parallel clarification of fermentation broths in upstream bioprocessing development
• High-throughput sample cleanup for pharmaceutical QC labs performing residual solvent testing (ICH Q3C)
• Membrane integrity testing (bubble point, diffusion test) of filter assemblies under standardized vacuum conditions
• Validation studies requiring replicate filtration runs under identical physical parameters (flow rate, pressure differential, temperature)

FAQ

Is this manifold suitable for use with aggressive solvents such as DMSO or chloroform?
Yes—316 stainless steel construction provides broad chemical resistance. However, prolonged exposure to halogenated solvents above 60°C is not recommended; consult the ASTM G154 corrosion resistance guide for extended service life estimation.
Can I replace the rubber stoppers and tubing with alternatives?
Yes—#8 stoppers and Φ6 mm tubing are industry-standard dimensions. We recommend platinum-cured silicone or fluorosilicone tubing for enhanced solvent resistance and reduced extractables.
Does the manifold include vacuum tubing or filter funnels?
No—these are sold separately. Compatible accessories include BL-FUNNEL series (stainless steel) and certified sterile disposable funnels meeting ISO 8573-1 Class 3 air purity standards.
What maintenance is required between autoclave cycles?
Visually inspect valve seats for particulate buildup; rinse with deionized water and air-dry. Lubricate PTFE valve stems annually with FDA-approved silicone grease (USP Class VI).
Is CE or UKCA marking available?
This device falls outside the scope of EU Machinery Directive 2006/42/EC and UK Supply of Machinery (Safety) Regulations 2008, as it contains no moving parts or energy sources. It is supplied with Declaration of Conformity referencing EN 10204 3.1 and ISO 9001:2015 manufacturing certification.