Filling Funnels
Funnels have a conical shape and short, wide stems for filling bottles or transferring powders. Filling funnels typically have a 60-degree angle that permits accurate fitting of filter paper, as well as vents or flutes to reduce vacuum formation and decrease filtering time.
Filling Funnel Materials
Glass
Borosilicate glass filling funnels include a strong beaded edge that resists chipping. Their resistant structure allows for the use of various reagents and chemicals. They also have a high resistance to thermal and mechanical shock and chemical attack. Funnels made from flint glass and soda-lime glass are also available.
Plastic
Plastic filling funnels may be disposable or reusable and are made from polystyrene, polypropylene, polyethylene (LDPE or HDPE), or other resins.
Metal
Metal funnels are durable and reusable and may be constructed from a variety of metals. Each has characteristics that facilitate a particular use and purpose.
Filling funnels are available in a range of sizes and dimensions. They are typically sized based on capacity — the volume they can contain. Dimensionally, they may vary in top diameter, stem length, stem diameter, bowl angle, bowl capacity, and overall length. Filling funnels may be classified as Class A or Class B based on tolerances specified by ASTM and other standards.
What Different Types of Glass Funnels Are Available?
• General-purpose glass filling funnels for channeling, filling, and decanting liquids
• Short-stem or powder funnels to prevent the stem from clogging during the handling of fine powders
• Long-stem analytical funnels, often used with filter papers
• Fluted funnels to help reduce vacuums and facilitate more rapid filtration
• Büchner, glass-filtering, or vacuum filtration funnels made with an integral sintered glass disc for filtering precipitates or particulates without the need for filter papers. The sintered discs come in a range of pore sizes, typically from 10 to 40 μm
• Pear-shaped separatory funnels (separating or separation funnels) fitted with a stopper and a PTFE or glass stopcock for separating layered immiscible liquids in chemistry applications
• Weighing funnels to function as weighing dishes and to transfer weighed solids to other vessels
Chemglass Life Sciences Funnel, Solvent Addition, Stem 12mm OD X 75mm Long
Funnel, Solvent Addition, Stem 12mm OD X 75mm Long. Design of funnel permits addition of solvents to flash chromatography columns without disturbing the silica-gel / packing layer. Lower end of the funnel is closed and the stem has a series of small holes through which the solvent drains. Top of the funnel is 75mm (3in) in diameter with the stem size as listed.
Bellco Glass, Inc. Aseptic Fill Bell,40mm
Manufactured from Type 1 Class A Borosilicate Glass. Ideal for use of filling other glass vessels. Receiving vessel is placed under bell to maintain aseptic conditions during filling. Attaches to reservoir with rubber tubing. MADE IN THE USASpecifications:Type 1 Class A Borosilicate GlassDimensions: 41x95mmTubing Size: 1/4″2 per case
Chemglass Life Sciences Chemglass 12 mm PTFE Stem, Replacement for Chem-Drain Valve
Replacement PTFE stem for 12 mm drain valves, intended for use as a spare or repair part to restore sealing and flow control in Chem-Drain style valve assemblies. Manufactured from PTFE for broad chemical resistance and smooth operation, the stem is sized to fit 12 mm valve assemblies and permits drainage of particulate-laden solutions.
- 12 mm stem diameter for standard 12 mm drain valve assemblies.
- PTFE material provides excellent chemical resistance and low friction.
- Permits drainage of liquids and solids up to 2 mm in diameter.
- Designed for use as a replacement or spare stem for repair and maintenance.
- Simple installation; compatible with valve bodies where PTFE components are supported.
Foxx Life Sciences FOXX APEX™ Sterile Disposable Bottle Top Filters with 0.45 µm PALL PES Membrane for Prefiltration or Clarification, 1000 mL, 24/CS
The FOXX APEX ™ Bottle-Top Filter Funnel Only Assembly is a sterile, single-use disposable vacuum-driven lab filtration unit for high-throughput, high-capacity work. Designed in USA and made in an ISO 13485-certified cleanroom with USP Class VI materials, it delivers fast flow, low hold-up volume, and minimal protein adsorptionideal for cell/tissue culture filtration, media preparation filters, and bioprocessing.
Features
PES membrane for fast, high-throughput filtration and low protein binding
Available pore sizes: 0.1 m for mycoplasma removal; 0.22 m for sterile media/reagent filtration; 0.45 m for clarification/debris removal
Gamma sterilized (SAL 10), non-pyrogenic, and individually packaged
Accessory: Patented holder options including low-profile pedestal base (1116-RLS) and ring-stand cradle (1122-RLS)both enabling hands-free vacuum filtration, leak-proof connection, and reduced contamination risk in tissue culture hoods
Chemglass Life Sciences 100mm Powder Funnel, Modified, 29/42 Inner Joint, 35mm Flat Sided
100mm Powder Funnel, Modified, 29/42 Inner Joint, 35mm Flat Sided. Similar to CG-1720, but with one side flattened to allow funnel to be used in multi-neck flasks where space is limited. Flat side dimension is the distance between the center of the standard taper inner joint and the flattened side of the funnel. Funnels have 60º angled sides with a standard taper inner joint.
Chemglass Life Sciences 75mm Powder Funnel, Modified, 29/42 Inner Joint, 25mm Flat Sided
75mm Powder Funnel, Modified, 29/42 Inner Joint, 25mm Flat Sided. Similar to CG-1720, but with one side flattened to allow funnel to be used in multi-neck flasks where space is limited. Flat side dimension is the distance between the center of the standard taper inner joint and the flattened side of the funnel. Funnels have 60º angled sides with a standard taper inner joint.
Med Vet International GelPro Stand in Comfort Mat 18" X 24" - Drop, J0770A, Each
GelPro Stand in Comfort Mat 18" X 24" - Drop, J0770A, Each
Indiana Fluid Systems Technologies STAINLESS STEEL 1-PIECE POPPET
NC3834349 STAINLESS STEEL 1-PIECE POPPET
