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. 125mm powder funnel with 35/45
125mm powder funnel with 35/45 inner joint is useful in pouring powders or liquids into ground joint containers.
Ace Glass, Inc. Funnel, heavy wall glass, angled, 45/50 joint, 190mm ODx325mmlength
Funnel, heavy wall glass, angled, 45/50 joint, 190mm ODx325mmlength
Ace Glass, Inc. 100mm powder funnel with 24/29 inner joint
100mm powder funnel with 24/29 inner joint is useful in pouring powders or liquids into ground joint containers.
Ace Glass, Inc. Funnel, powder, flat side, 14/20, 50mm OD opening, 70mm height above the joint
Funnel, powder, flat side, 14/20, 50mm OD opening, 70mm height above the joint
Chemglass Life Sciences 75mm Powder Funnel, 24/40 Inner Joint
75mm 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 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.
Chemglass Life Sciences 100mm Powder Funnel, Modified, 24/40 Inner Joint, 35mm Flat Sided
100mm Powder Funnel, Modified, 24/40 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 100mL Powder Addition Funnel, 24/40 Joint Size, Auger A
100mL Powder Addition Funnel, 24/40 Joint Size, Auger A. Facilitates the delivery of free-flowing, granular solids into reactions. Pressure equalizing arm is equipped with a vented stopper for air-free operations and also permits access into the delivery stem for easy clean-out. One piece, easily removed grooved PTFE auger delivers powders at a uniform rate. Funnel has a lower inner joint and top outer, both being the size listed.
Chemglass Life Sciences 150mm Powder Funnel, 45/50 Inner Joint
150mm Powder Funnel, 45/50 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 150mm Powder Funnel, Modified, 29/42 Inner Joint, 45mm Flat Sided
150mm Powder Funnel, Modified, 29/42 Inner Joint, 45mm 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 8" ECO Funnel, Use 2-5 Gallon Justrite Waste Container
8" ECO Funnel, Use 2-5 Gallon Justrite Waste Container. The 8” Eco Funnel is make of HDPE and has a 2000mL fluid capacity. Features an easy to use lid, gasket and positive latch to close the lid and maintain an airtight seal. A filter is also built into the interior to reduce the loss of magnetic stir bars and other items when emptying the contents of a vessel into the funnel. The funnel is equipped with an 11” stem to reduce chemical evaporation of hazardous solvents in the lab.
Essendant CALENDARDESK TOP TENTBE
Stand-alone monthly desk-top tent calendar is perfect where desk-space is limited Full-year reference calendar on the back side of each page Spiral-bound at the top just flip to view other months Bar Harbor neutral graphics match any d cor Made entirely of recycled materials Dated/Undated- Dated Calendar Format- Monthly Calendar Spread Format- One Month per Page Edition Year- 2025
MSC PRO-LUBE 1707001 8 oz Capacity Plastic Funnel 4-1/2" Mouth OD, 1/2" Tip OD, Straight Spout, Red
PRO-LUBE 1707001 8 oz Capacity Plastic Funnel 4-1/2" Mouth OD, 1/2" Tip OD, Straight Spout, Red
BURKLE INC Funnel
The robust stainless steel filling funnel makes it easy to fill and transfer free-flowing powders liquids and low-viscosity media With an air vent on the discharge pipe it ensures complete and unobstructed flow for efficient handling of a wide range of materials
BURKLE INC Funnel
The robust stainless steel filling funnel makes it easy to fill and transfer free-flowing powders liquids and low-viscosity media With an air vent on the discharge pipe it ensures complete and unobstructed flow for efficient handling of a wide range of materials