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
California Pacific Lab & Consulting 4" ECO FUNNEL SYSTEM, 1 GALLON
4" ECO Funnel System, 1 gallon Jug with Handle, Secondary Container
Foxx Life Sciences Borosil® Funnels with 60 Angle Bowls and 25mm Stems, Extra Small(ES), 30/CS
Borosil® Short Stem Funnels are built for durability & long-term use. Funnels have 60 bowl angles for perfect fit w/ filter papers. Used for filtration & decanting of a wide variety of liquids. Built from Borosil's world-renowned 3.3 borosilicate, low-expansion, chemically resistant glass. Available in a variety of sizes from 25mm diameter (XS, Extra Small) to 100mm diameter (XXL, 2X-Extra Large). Borosil® Short Stem Funnels comply w/ DIN/ISO 4798. In collaboration w/ Borosil Glass Works, Foxx Life Sciences is proud to bring the outstanding quality of Borosil® Type 3.3 Borosilicate glassware to North America for the first time. Manufactured from the same USP Type 1 borosilicate glass that North American scientists have come to trust, Borosil® Laboratory Glassware offers unparalleled mechanical strength, clarity, & reliability at competitive prices. & thanks to a unique annealing process, Borosil® Glassware is stress-free & incredibly resistant to thermal shock.
Ace Glass, Inc. 150mm powder funnel with 29/42 inner joint
150mm powder funnel with 29/42 inner joint is useful in pouring powders or liquids into ground joint containers.
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.
iXCells Biotechnologies AdiposeDerived Stem Cell Attac
Adipose-Derived Stem Cell Attachment Medium - 500mL
Ace Glass, Inc. Funnel, powder, 60mm Duran flange bottom, wide mouth top
Borosilicate glass Powder Funnel with a 60mm Duran flange bottom and a wide-mouth top. The flange matches side ports on ACE spherical pilot plant reactor heads. The funnel is slightly angled to allow for easy pouring of material into large scale reactors. Uses a stainless steel quick-release clamp for connection to the reactor head.
Ace Glass, Inc. Funnel, powder, flat side, 71/60, 255mm OD opening, 300mm height above the joint
Funnel, powder, flat side, 71/60, 255mm OD opening, 300mm height above the joint
Ace Glass, Inc. Funnel, heavy wall glass, angled, 45/50 joint, 190mm ODx325mmlength
Funnel, heavy wall glass, angled, 45/50 joint, 190mm ODx325mmlength
Chemglass Life Sciences 8" ECO Funnel, 53mm Thread, Use CG-1759-11 Waste Container
8" ECO Funnel, 53mm Thread, Use CG-1759-11 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.
Chemglass Life Sciences Chemglass 12 mm PTFE Stem, Replacement for Chem-Drain Valve
Replacement PTFE stem for 12 mm drain valves, intended for use as a spare or repair part to restore sealing and flow control in Chem-Drain style valve assemblies. Manufactured from PTFE for broad chemical resistance and smooth operation, the stem is sized to fit 12 mm valve assemblies and permits drainage of particulate-laden solutions.
- 12 mm stem diameter for standard 12 mm drain valve assemblies.
- PTFE material provides excellent chemical resistance and low friction.
- Permits drainage of liquids and solids up to 2 mm in diameter.
- Designed for use as a replacement or spare stem for repair and maintenance.
- Simple installation; compatible with valve bodies where PTFE components are supported.
California Pacific Lab & Consulting 8" ECO Funnel with 100mm cap adapter (Nalgene)
This 8" ECO Funnel is designed to fit a 9 liter Nalgene container with a 100mm closure. Our patented design features a latching lid with gasket to keep fumes contained. A removable large particle filter catches stir bars or other items. A detachable tube extends into the waste container to minimize chemical evaporation. The 8" version of our ECO Funnel includes an additional safety feature to prevent over-filling; a secondary air-lock tube creates a small air gap in your waste container, which causes fluid to back up temporarily into the funnel when the container is full. After the screw cap adapter is loosened, the remaining fluid will safely flow into the container and not spill.
California Pacific Lab & Consulting FUNNEL SAFETY HAZARDOUS
Funnel, HDPE; California Pacific; ECO; Capacity: 2000mL; 8 in.; Cap size: 70mm; Suitable for 20L carboy; Easy use lid, gasket, and positive latch; Interior filter; 11 in. stem