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
Cole-Parmer Essentials Stainless Steel Funnel, 32 oz
Cole-Parmer Stainless Steel Funnel, 32 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 ECO FUNNEL 4INTOP LATCH GAS/4L
4 in. Eco Funnel w/ Complete System, System Includes: 4 in. Eco Funnel, 4L Bottle, Secondary Container, 38mm-430 Screw Cap, Shipping Weight: 5 lb.
Chemglass Life Sciences 100mm Powder Funnel, Offset, 24/40 Inner Joint, C to C Offset is 40mm
100mm Powder Funnel, Offset, 24/40 Inner Joint, C to C Offset is 40mm. Funnel has a lower stem made with an offset to permit use with multi-neck flasks.
Hach Company Funnel, Analytical, 65 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.
Cole-Parmer Stainless Steel Funnel, 22-1/4 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.
Glass Expansion Clamp for Agilent PCC, 120mm
Clamp for Agilent PCC, 120mm Sourced from Glass Expansion
US Plastic Corporation 64OZ PE FUNNEL 8 1/8 D 8 H
These polypropylene and high density polyethylene funnels have many uses. They are inexpensive, lightweight, and durable. The 6-3/8 in. size has a large throat opening for quick transfer of materials.
Chemglass Life Sciences 50mm Powder Funnel, Modified, 14/20 Inner Joint, 15mm Flat Sided
50mm Powder Funnel, Modified, 14/20 Inner Joint, 15mm 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 50mm Powder Funnel, 14/20 Inner Joint
50mm Powder Funnel, 14/20 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, 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 Filling Bell, Aseptic, 49mm ID, 100mm OAH
Filling Bell, Aseptic, 49mm ID, 100mm OAH. For aseptic filling of vessels. Tubing is attached to the serrated hose connection while the receiving vessel is placed inside the bell. Made from Type 1 Class A borosilicate glass.