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. 100mm powder funnel with 29/32 inner joint
100mm powder funnel with 29/32 inner joint is useful in pouring powders or liquids into ground joint containers.
Sigma Aldrich Fine Chemicals Biosciences FILTER FUNNEL GLASS 50 ML
NC2892924 FILTER FUNNEL GLASS 50 ML
Essendant FOODSALTSHAKERS48-4OZ
Finely granulated iodized salt is a great condiment to keep on hand Stock your kitchen or breakroom with flavor Food Type- Condiment Flavor- Salt Capacity (Weight)- 4 oz Sugar Free- Yes
Chemglass Life Sciences 50mm Powder Funnel, 19/22 Inner Joint
50mm Powder Funnel, 19/22 Inner Joint. Useful for the introduction of solids or liquids into reactions under atmospheric conditions. Funnels have 60º side angle and a standard taper inner joint.
Grainger Measuring Funnel 1 qt. 1-3/8 Dia Spout
The Grainger 14N898 is a Westward brand 1/4-inch drive socket adapter that converts a 1/4-inch square drive to a 3/8-inch square drive. It is made from chrome vanadium steel for durability and has a black oxide finish to resist corrosion. This socket adapter allows you to use 1/4-inch drive tools with a 3/8-inch drive ratchet, extension bar, or other accessory. It measures 1-1/2 inches long and weighs 0.8 ounces. The 14N898 socket adapter is ideal for automotive applications or projects where you need to adapt between different drive sizes.
BURKLE INC Disposable powder funnel, PS, Ø 3.94 in (100 mm), white, sterile
The disposable powder funnel has a short and wide outlet and is suitable for transferring powdered samples and materials, granulates, suspensions and other liquids.
The wide opening of the disposable powder funnel prevents the powder or granulate from clogging during filling. The practical and hygienic filling aid is therefore a useful accessory when taking samples or in the laboratory.
In combination with a filter paper, the disposable funnel is also very suitable for filtering.
Ace Glass, Inc. Funnel, heavy wall glass, angled, 24/40 joint, 100mm ODx140mmlength
Funnel, heavy wall glass, angled, 24/40 joint, 100mm ODx140mmlength
Protech International Inc 1/16 (1.6MM) Stainless Steel BUTTON HEAD TORX Screw
1/16 (1.6MM) Stainless Steel BUTTON HEAD TORX Screw