ROCKER BioVac 631 Stainless Steel 6-Position Vacuum Filtration Manifold

Overview

The ROCKER BioVac 631 is a precision-engineered, 6-position vacuum filtration manifold designed for high-integrity, repeatable liquid and air sampling applications in regulated laboratory environments. Constructed entirely from medical-grade SUS316 stainless steel — including the manifold body, individual isolation valves, filter funnels, membrane support plates, handles, and fluidic connectors — the system delivers exceptional corrosion resistance, mechanical robustness, and full compatibility with standard sterilization protocols including steam autoclaving (121 °C, 15–20 min), dry-heat oven treatment (180 °C), and direct flame passivation. Its operational principle relies on controlled vacuum-driven flow across standardized 47 mm or 50 mm diameter microporous membranes, enabling quantitative recovery of microorganisms, particulates, or suspended solids from aqueous or low-viscosity organic solvents. The manifold is engineered for use in cleanroom-adjacent workflows, environmental monitoring labs, pharmaceutical QC facilities, and academic microbiology suites where material traceability, surface finish integrity (Ra ≤ 0.8 µm), and non-leaching performance are critical.

Key Features

• Full-body construction from ASTM A276-certified SUS316 stainless steel — meets USP Class VI biocompatibility requirements for repeated contact with biological samples.
• Patented rotary bayonet locking mechanism (ROCKER Patent No. M381450) ensures rapid, tool-free, leak-tight coupling between filter cups and manifold ports — eliminates gasket misalignment and reduces setup time by >40% versus traditional clamp-based systems.
• Six independently actuated ball valves (SUS316, PTFE-sealed) allow selective vacuum application to individual positions — essential for parallel processing of heterogeneous sample types or staggered filtration timing without cross-contamination.
• Rated for continuous operation at up to 3000 psi differential pressure — supports high-flow-rate applications using low-resistance membranes or aggressive solvents without structural deformation.
• Optimized fluid path geometry minimizes dead volume (< 0.3 mL per port) and facilitates complete sample recovery; all wetted surfaces are electropolished to ASTM B912 standards.

Sample Compatibility & Compliance

The BioVac 631 is validated for use with standard 47 mm and 50 mm diameter track-etched, mixed cellulose ester (MCE), polyethersulfone (PES), nylon, and PVDF membranes. It accommodates both sterile and non-sterile filtration workflows and is routinely deployed in compliance-critical procedures aligned with ISO 8573-1 (compressed air purity), ISO 7218 (microbiology), ASTM D1129 (water microbiological analysis), and USP / (microbial enumeration and testing). The SUS316 architecture ensures no metal ion leaching under acidic (pH ≥ 2) or alkaline (pH ≤ 12) conditions over extended exposure, supporting GLP/GMP documentation requirements for equipment qualification (IQ/OQ/PQ).

Software & Data Management

As a standalone mechanical filtration platform, the BioVac 631 does not incorporate embedded electronics or firmware. However, its design supports integration into digitally auditable workflows: valve actuation status can be manually logged against sample IDs in LIMS or ELN systems; filter cup lot numbers, membrane specifications, and sterilization cycle records (time/temperature/pressure) are retained per position in accordance with FDA 21 CFR Part 11 principles for manual data entry traceability. Optional accessories include calibrated vacuum gauges (0–760 torr, ±1 torr accuracy) and digital vacuum controllers with RS-485 output for centralized monitoring.

Applications

• Membrane filtration-based microbial enumeration (e.g., coliforms, Pseudomonas aeruginosa, total viable count) per ISO 9308-1 and EPA Method 1603.
• Pre-concentration of environmental water samples (surface, wastewater, drinking water) prior to PCR or culture-based detection.
• Particulate removal in buffer preparation, cell culture media sterilization, and reagent clarification for bioprocessing.
• Aerosol collection via impaction or filtration in HVAC validation, cleanroom monitoring, and occupational hygiene studies.
• Chemical synthesis workups involving catalyst recovery, precipitate isolation, or solvent exchange under inert atmosphere (when paired with nitrogen-purged vacuum source).

FAQ

Is the BioVac 631 compatible with vacuum pumps generating >0.95 bar suction?
Yes — the manifold’s 3000 psi pressure rating exceeds typical lab vacuum pump capabilities (max ~0.98 bar absolute); ensure pump oil compatibility with solvents used in downstream filtration.
Can I autoclave the entire assembled unit, including valves and filter cups?
Yes — all components withstand standard gravity or prevacuum autoclave cycles (121 °C, 15–20 min); avoid rapid cooling post-cycle to prevent thermal shock-induced microcracking.
What is the recommended maintenance interval for valve seals?
Under normal use (≤5 cycles/day), PTFE valve seals require inspection every 6 months; replacement kits (ROCKER P/N 167103-611) are available separately.
Does ROCKER provide installation qualification (IQ) documentation?
Yes — factory-issued IQ templates compliant with ISO/IEC 17025 are provided upon request, including dimensional verification, material certification (EN 10204 3.1), and surface roughness test reports.
Are replacement 100 mL filter cups supplied with certified calibration certificates?
Individual cups are manufactured to ISO 9001-certified processes; volumetric tolerance is ±2% at 20 °C — NIST-traceable calibration certificates are available as optional add-ons.