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
Ace Glass, Inc. Funnel, powder, flat side, 71/60, 255mm OD opening, 300mm height above the joint
Funnel, powder, flat side, 71/60, 255mm OD opening, 300mm height above the joint
Ace Glass, Inc. 125mm powder funnel with 24/40 inner joint
125mm powder funnel with 24/40 inner joint is useful in pouring powders or liquids into ground joint containers.
BURKLE INC Disposable liquid funnel PS, Ø 3.94 in. (100 mm), white
Disposable funnel for reliable filling of liquids, ideal for filling bottles and other containers with a narrow filler opening.
The disposable funnel ensures no loss when transferring liquid samples or free-flowing solids. That makes this practical and hygienic pouring aid a helpful accessory for sampling or in laboratories.
Clean room produced funnel with suspension eye and venting fins for ventilation to ensure uniform flow while pouring.
In combination with a filter paper the disposable funnel is also well suited for filtering.
Hach Company Funnel-Powder-150 mm Top ID
Polypropylene funnel for easy transfer of powders into narrow-necked flasks tubes or vials
Chemglass Life Sciences 75mm Powder Funnel, Offset, 24/40 Inner Joint, C to C Offset is 30mm
75mm Powder Funnel, Offset, 24/40 Inner Joint, C to C Offset is 30mm. Funnel has a lower stem made with an offset to permit use with multi-neck flasks.
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.
Thomas Scientific STERIWARE BLUE LIQUID FUNNEL,
SteriWare Blue Liquid Funnel, PP,100mm Top Diameter, Sterile
Med Vet International Allergroom Virbac Shampoo 8oz
Allergroom Shampoo now has Glycotechnology, a patented technology that keeps bacteria and yeast from adhering to skin. It is a moisturizing, hypoallergenic shampoo designed for frequent use on dry skin in cats, dogs, and horses of any age. It is gentle, soap-free, and antiseborrheic.