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
CHEMSCIENCE Steel "A"
• This product is supplied in five lot of 500 g each of known concentration ( % concentration availiable upon request.)
• Detailed purity information, along with the Safety Data Sheet (SDS) and Technical Data Sheet (TDS), will be provided upon purchase.
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
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.
Chemglass Life Sciences Funnel, Solvent Addition For Chromatography Column, Assorted Pack
Funnel, Solvent Addition For Chromatography Column, Assorted Pack. Unbreakable, polypropylene solvent addition funnels useful for chromatography columns. The unique closed-end design facilitates gentle addition of solvent to the column. Perforated funnel stem permits solvent to pour down the column wall without disturbing the top layer of silica gel. Convenient assortment pack consists of five funnels for use with various column sizes. Approximate dimensions are provided.
BURKLE INC Single-use powder funnel Bio-PE, Ø 3.94 in. (100 mm), white
The disposable powder funnel has a short, wide discharge and is suitable for transferring powdered samples and materials, granulates and suspensions as well as other liquids.
The wide opening of the disposable powder funnel prevents the powder or granulates from clogging while dispensing. That makes this practical and hygienic pouring aid a helpful accessory for sampling or in laboratories.
In combination with a filter paper the disposable funnel is also well suited for filtering.
Chemglass Life Sciences Funnel, Process Reactor, Small, Polypropylene, 4.3L Capacity, 260mm Top, 60mm Flange
Funnel, Process Reactor, Small, Polypropylene, 4.3L Capacity, 260mm Top, 60mm Flange. Large funnels have a 60mm flange fused to the bottom of the funnel. This design makes them ideal for filling Chemglass's process reactors by clamping the funnel directly to the powder addition port. The wide mouth funnel has a large opening to optimize flow. The 4.3L size has a handle at the rim. Main body and flange are made from Polypropylene. Funnels are autoclavable at 121C (250F).
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.
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.
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.
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.