Glass & Stainless Steel
1, 3 or 6 Branches
For Microbiological, HPLC & QC Laboratories
Availability: In Stock
Vacuum Filtration Manifold for Multi-Branch Laboratory Filtration
Description
What Is a Vacuum Filtration Manifold?
A vacuum filtration manifold is a multi-branch laboratory filtration system designed to distribute vacuum pressure across multiple filtration stations. In essence, it is designed to simultaneously filter multiple liquid samples through membrane filters under controlled vacuum pressure. A standard system consists of:
- Filtration funnels or filter holders (glass or stainless steel)
- Vacuum base manifold with independent control valves
- Vacuum flask or waste collection bottle
- Vacuum tubing connection
- Membrane filter support (PTFE sieve plate or stainless steel mesh)
Compared to gravity filtration or single-filter setups, a manifold system reduces total filtration time, improves reproducibility, and eliminates cross-contamination risks when separate funnels or filters are used with independent valves.
Why Vacuum Membrane Filtration Is Used in Laboratories
Vacuum membrane filtration is widely used in analytical, microbiological and pharmaceutical laboratories because it provides faster filtration speed, improved particle retention and better reproducibility compared with gravity filtration methods.
By applying negative pressure below the membrane, vacuum filtration systems accelerate liquid flow while maintaining precise membrane separation performance. This makes vacuum membrane filtration ideal for:
- Microbiological membrane filtration methods
- Sterility testing
- Mobile phase preparation for HPLC and LC-MS
- Environmental water testing
- Particulate contamination analysis
- Sample clarification before instrumental analysis
Vacuum Filtration Methods in Laboratory Testing
Vacuum filtration is a standard laboratory method used in microbiological analysis, pharmaceutical quality control and environmental testing. It follows established procedures such as membrane filtration methods for microbial enumeration and particulate analysis.
- Microbiological membrane filtration method (bacteria & yeast testing)
- HPLC mobile phase filtration method
- Environmental water testing method (E. coli, coliform detection)
- Pharmaceutical sterility testing method
Vacuum Filtration Manifold vs Single Filter Holder
| Feature | Vacuum Filtration Manifold | Single Filter Holder |
| Sample Throughput | Multiple samples simultaneously | One sample at a time |
| Laboratory Efficiency | High | Low |
| Best for | Microbiology, QC, water testing | Small-volume filtration |
| Vacuum Control | Independent branch valves | Single line only |
Selection Guide – Which Manifold Is Right for You?
| Your Need | Recommended Cat. No. | Reason |
| HPLC mobile phase / solvent filtration | 11261001 (glass 1-branch, 300 mL) or 11262001 (500 mL) | Transparent, chemically inert, PTFE screen prevents clogging |
| Microbiological membrane filtration (bacteria counts) | 11261005 (SS 3-branch, 300 mL) or 11262004 (500 mL) | Autoclavable, flame-sterilizable, durable |
| High volume water testing | 11261008 (SS 6-branch, 300 mL) or 11262006 (500 mL) | High throughput parallel processing, 100 µm mesh handles particles |
| General lab filtration with moderate throughput | 11261004 (glass 3-branch, 300 mL) | Balanced cost, transparency, chemical resistance |
Complete Specifications & Ordering Information
All systems are supplied as complete kits including manifold base, filtration funnels (one per branch), collection flask, anodized aluminum spring clamp, support frit, SS316L base, and hosepipe. Entire assembly is autoclavable at 121 °C. Below is the full list of available models with their specifications and packaging.
300 mL Funnel Systems
| Cat. No. | Material | Branches | Funnel Capacity | Support Screen | Pore Size | Connection | Flask | Key Feature | Packaging |
| 11261001 | Glass | 1 | 300 mL | PTFE | 20 µm | Ground joint | 1000 mL | Ideal for HPLC solvent prep | 1 set/box |
| 11261002 | SS316L | 1 | 300 mL | SS316L | 100 µm | Integrated | 1000 mL | Flame-sterilizable | 1 set/box |
| 11261003 | SS316L | 1 | 300 mL | SS316L | 100 µm | Stopper SS316L | 1000 mL | Rubber stopper seal | 1 set/box |
| 11261004 | Glass | 3 | 300 mL | PTFE | 20 µm | Ground joint | 1000 mL | Independent valves, PTFE plates | 1 set/box |
| 11261005 | SS316L | 3 | 300 mL | SS316L | 100 µm | Integrated | 1000 mL | Auto-cooling fins | 1 set/box |
| 11261006 | SS316L | 3 | 300 mL | SS316L | 100 µm | Stopper SS316L | 1000 mL | 24h continuous operation | 1 set/box |
| 11261007 | Glass | 6 | 300 mL | PTFE | 20 µm | Ground joint | 1000 mL | High throughput, all glass fluid path | 1 set/box |
| 11261008 | SS316L | 6 | 300 mL | SS316L | 100 µm | Integrated | 1000 mL | Low center of gravity | 1 set/box |
| 11261009 | SS316L | 6 | 300 mL | SS316L | 100 µm | Stopper SS316L | 1000 mL | Sintered support | 1 set/box |
500 mL Funnel Systems
| Cat. No. | Material | Branches | Funnel Capacity | Support Screen | Pore Size | Connection | Flask | Key Feature | Packaging |
| 11262001 | Glass | 1 | 500 mL | PTFE | 20 µm | Ground joint | 1000 mL | Larger funnel for higher volume | 1 set/box |
| 11262002 | SS316L | 1 | 500 mL | SS316L | 100 µm | Integrated | 1000 mL | Single station, durable | 1 set/box |
| 11262003 | Glass | 3 | 500 mL | PTFE | 20 µm | Ground joint | 2000 mL | Increased sample capacity | 1 set/box |
| 11262004 | SS316L | 3 | 500 mL | SS316L | 100 µm | Integrated | 2000 mL | High-volume microbiology | 1 set/box |
| 11262005 | Glass | 6 | 500 mL | PTFE | 20 µm | Ground joint | 2000 mL | Maximum throughput for large samples | 1 set/box |
| 11262006 | SS316L | 6 | 500 mL | SS316L | 100 µm | Integrated | 2000 mL | Industrial-grade filtration | 1 set/box |
Download PDF Datasheet
Custom & OEM Options: Larger funnels, different flask capacities, full SS316 systems, private labeling, and bulk packaging are available on request. Contact our technical team for configuration support.
Key Features Across All Systems
- Independent control valves– Each branch can be opened or closed individually, allowing flexible multi-sample operation.
- PTFE sieve plates (glass models)– Non-stick, corrosion-resistant, easy to clean; pore size 20 µm ensures even membrane support without clogging.
- Stainless steel mesh supports (SS models)– 100 µm openings for fast filtration; flame-sterilizable and autoclavable.
- Auto-cooling fins (SS 3-branch)– Dissipate heat during prolonged vacuum pump operation, enabling 24-hour continuous use.
- Low center of gravity (SS 6-branch)– Prevents tipping when handling heavy funnels or large sample volumes.
- Standard vacuum connection– 9.5 mm hose barb compatible with common laboratory vacuum tubing.
- Complete kits– Each system includes funnels, collection bottle, spring clamp, support base, and hosepipe.
Applications
- Microbiological membrane filtration (bacteria enumeration, yeast/mold testing)
- HPLC / UHPLC mobile phase filtration
- Environmental water testing (total coliform, E. coli, suspended solids)
- Pharmaceutical QC and sterility testing
- Chemical and industrial laboratory filtration
Instrument & Accessory Compatibility
Our manifolds are compatible with standard 47 mm or 50 mm membrane filters (MCE, PES, PTFE, Nylon, etc.). Funnels accept standard filter paper discs. Components are interchangeable with most major brands (Millipore, Sartorius, Pall) – providing a cost-effective, high-performance alternative.
FAQ – Frequently Asked Questions
Can each branch operate independently?
Yes, all Hawach multi-branch manifolds have independent vacuum control valves. You can use one, two, or all branches simultaneously.
Are these systems autoclavable?
Yes, the whole set (glass or stainless steel) can be autoclaved at 121 °C (20 min). Stainless steel systems also support dry heat (180 °C) and flame sterilization on the filter support surface.
What membrane sizes are supported?
Standard 47 mm and 50 mm membrane filters are compatible with all funnels.
What is the advantage of PTFE sieve plates over glass frits?
PTFE plates are non-stick, chemically inert, and do not clog easily. Glass frits can become blocked by fine particles and are difficult to clean. PTFE plates are easier to maintain and last longer.
Are Hawach manifolds compatible with other brands’ filter holders or funnels?
Yes. The base manifold uses industry-standard connections, and funnels/filter holders from most major brands (e.g., Millipore, Sartorius) can be used interchangeably.
Can I use the system for viscous or particle-laden samples?
Yes. We recommend using a glass fiber pre-filter on top of the membrane to avoid clogging. Stainless steel supports with 100 µm openings handle higher particulate loads than PTFE plates.
Do you offer OEM / private label options?
Yes, we provide OEM labeling, custom packaging, and bulk supply for distributors and laboratory integrators. Contact us with your requirements.
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