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
Anton Paar Flow Cell with Filling Funnel for Abbemat 300/350/500/550
For routine analysis of low viscosity liquids. The sample is poured into the funnel and completely replaces the previous one so that a quick and comfortable sample exchange is possible.Suitable for use with Anton Paar refractometersAbbemat 300 item NC1818534,Abbemat 350 item NC1818535,Abbemat 500 item NC1818537,Abbemat 550 item NC1818539
CALIFORNIA PACIFIC LAB & CONSULTING 4IN ECO FUNNEL SYSTEM 2.5GAL
NC1670617 4IN ECO FUNNEL SYSTEM 2.5GAL
Chemglass Life Sciences 150mm Powder Funnel, 24/40 Inner Joint
150mm Powder Funnel, 24/40 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.
Chemglass Life Sciences 75mm Powder Funnel, Modified, 24/40 Inner Joint, 25mm Flat Sided
75mm Powder Funnel, Modified, 24/40 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.
Chemglass Life Sciences 100mm Powder Funnel, 24/40 Inner Joint, 195mm OAL
100mm Powder Funnel, 24/40 Inner Joint, 195mm OAL. Useful for the introduction of solids or liquids into reactions under atmospheric conditions. Funnel has steep sides to permit free-flow of solid materials. With standard taper inner joint.
Chemglass Life Sciences 150mm Powder Funnel, 29/42 Inner Joint
150mm Powder Funnel, 29/42 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.
Chemglass Life Sciences Funnel, Solvent Addition For Chromatography Column, Assorted Pack
Funnel, Solvent Addition For Chromatography Column, Assorted Pack. Unbreakable, polypropylene solvent addition funnels useful for chromatography columns. The unique closed-end design facilitates gentle addition of solvent to the column. Perforated funnel stem permits solvent to pour down the column wall without disturbing the top layer of silica gel. Convenient assortment pack consists of five funnels for use with various column sizes. Approximate dimensions are provided.
Grainger Fast Fill Funnel 1 qt. 1 Dia Spout
The Funnel King Fast Fill Spout Funnel is a polyethylene funnel designed for fast pouring. It has a 6 inch diameter top opening that tapers down to a 1-1/4 inch diameter spout. The overall height is 9 inches. This durable, chemical resistant funnel has a ribbed exterior for a non-slip grip. It can transfer up to 5 gallons per minute. The spout has a cap for dust protection. This funnel is ideal for automotive fluids, chemicals, grain and feed.