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
SIGMA ALDRICH FINE CHEMICALS BIOSCIENCES BRAND PP FUNNELS PLAIN INTER
NC3731570 BRAND PP FUNNELS PLAIN INTER
Ace Glass, Inc. Funnel, heavy wall glass, angled, 24/40 joint, 100mm ODx140mmlength
Funnel, heavy wall glass, angled, 24/40 joint, 100mm ODx140mmlength
Chemglass Life Sciences Chemglass 100 mm Fluted Glass Funnel, 60° Angle, Short Stem - Case of 12
This 100 mm fluted glass funnel is designed for laboratory filtration and transfer tasks where faster flow and reduced clogging are required. The 60° fluted cone and depressed inside flutings promote efficient filtering, and the short stem provides compact handling in crowded setups.
- Material: PYREX glass.
- Size (top ID): 100 mm.
- Angle: 60° cone.
- Stem type: short stem for compact use.
- Design: fluted with depressed inside flutings to decrease filtering time.
- Pack quantity: case of 12 (CS12).
Cole-Parmer Essentials Stainless Steel Funnel, 13 oz
Cole-Parmer Stainless Steel Funnel, 13 oz, Cole-Parmer stainless steel funnels are a laboratory supply you will count on for years of use. Stay in stock with our selection of medium gauge, 304 stainless steel funnels in various capacities and overall sizes.
California Pacific Lab & Consulting FUNNEL SAFETY HAZARDOUS
Eco funnel, w/fS-70 screw cap, 8 in., Made of HDPE and has an easy use lid, gasket, positive latch, filter, and an 11 ft. stem to effectively reduce chemical evaporation of hazardous solvents in the lab, 1750mL
Chemglass Life Sciences Chemglass Disposable Filter Funnel, 18 mL, Polyethylene Frit with 500 mg Diatomaceous Earth (Shelf Pack)
Chemglass disposable filter funnel (18 mL) is a single-use filtration device for solid-liquid separations in chemistry and biological laboratories. It uses a polyethylene frit charged with diatomaceous earth to provide consistent filtration and is supplied in a shelf-pack tray for convenient storage and handling.
- 18 mL nominal volume.
- Polyethylene frit loaded with 500 mg diatomaceous earth for consistent filtration performance.
- 80 mm stem length to minimize contamination of vacuum adapters.
- Shelf-pack, shrink-wrapped SBS-coated white tray for convenient handling and storage.
- Compatible with standard glass vacuum adapters and PTFE stopcock for controlled vacuum filtration.
BURKLE INC Funnel, stainless steel, V2A, outer-Ø 11.81 in. (300 mm)
The rugged 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 tube, it provides complete and unobstructed flow for efficient handling of a wide variety of materials.
The larger versions of the feed hopper are also equipped with a handle, which not only increases safety when handling larger fill quantities, but also improves usability in industrial environments.
Chemglass Life Sciences 8" ECO Funnel, 38-430 Thread, 1/16" HPLC Fitting, Use CG-1759-10 Waste Container
8" ECO Funnel, 38-430 Thread, 1/16" HPLC Fitting, Use CG-1759-10 Waste Container. Same as the standard 8" ECO Funnel, but with the addition of an HPLC waste hook adapter that connects to the side of the funnel eliminating the danger of dangling waste lines into bottles and containers.
BURKLE INC Blue disposable powder funnel PS, Ø 3.94 in. (100 mm), sterile
The blue disposable powder funnel, made of polystyrene, is produced in a cleanroom class 7 (10,000), individually packaged for single use, and sterilized.
The unique blue color doesn’t naturally occur in food, making it easy to spot during visual inspections if mixed into production.
Using blue tools supports HACCP hazard analysis by helping identify foreign objects, crucial in food, animal feed, and pharmaceutical industries.
The funnel features a short, wide discharge ideal for transferring powders, granulates, suspensions, and liquids.
Its wide opening prevents clogging, making it a practical, hygienic accessory for sampling and lab use.
When combined with filter paper, it is also suitable for filtering applications.