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
Chemglass Life Sciences 100mm Powder Funnel, 29/42 Inner Joint
100mm Powder Funnel, 29/42 Inner Joint. Useful for the introduction of solids or liquids into reactions under atmospheric conditions. Funnels have 60 side angle and a standard taper inner joint.
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.
Hach Company Funnel, Analytical, 114 mL Approximate Volume
Standard long stem funnel meets the needs of a wide variety of applications. Mounded ribbing prevents "air lock" commonly occurring during funneling and filtrations. A steep, 58-degree cone slope makes for fast and easy flow of either liquids or small solids. Polypropylene construction is resistant to chemicals and makes this funnel fully autoclavable for sterilization.
Bellco Glass, Inc. Aseptic Fill Bell,50mm
Manufactured from Type 1 Class A Borosilicate Glass. Ideal for use of filling other glass vessels. Receiving vessel is placed under bell to maintain aseptic conditions during filling. Attaches to reservoir with rubber tubing. MADE IN THE USASpecifications:Type 1 Class A Borosilicate GlassDimensions: 49x100mmTubing Size: 1/2″2 per case
Ace Glass, Inc. Funnel, powder, flat side, 29/32, 145mm OD opening, 215mm height above the joint
Funnel, powder, flat side, 29/32, 145mm OD opening, 215mm height above the joint
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
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.
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.
California Pacific Lab & Consulting ECO FUNNEL 8 ECO FUNNEL WITH
NC3866205 ECO FUNNEL 8 ECO FUNNEL WITH
Bellco Glass, Inc. Aseptic Fill Bell,70mm
Manufactured from Type 1 Class A Borosilicate Glass. Ideal for use of filling other glass vessels. Receiving vessel is placed under bell to maintain aseptic conditions during filling. Attaches to reservoir with rubber tubing. MADE IN THE USASpecifications:Type 1 Class A Borosilicate GlassDimensions: 70x125mmTubing Size: 1/2″2 per case
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.