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 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).
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 Funnel, Eco, 8" Top Diameter, Thread Size 38-430, CHEMGLASS TO ASSEMBLE PRIOR TO SHIPMENT
Funnel, Eco, 8" Top Diameter, Thread Size 38-430. Similar to CG-1759-01 except preassembled prior to shipment.
California Pacific Lab & Consulting FUNNEL SAFETY HAZARDOUS
System, Funnel; California Pacific; ECO; Made of HDPE; 8 in.; 2 in. NPT fine thread; Capacity: 2000mL; Suitable for 15, 30, 55 gal. drums; Easy use lid, gasket, and positive latch to close lid; Interior filter; 11 in. stem
US Plastic Corporation MINI POLYPROPYLENE FUNNEL
These polypropylene and high density polyethylene funnels have many uses. They are inexpensive, lightweight, and durable. They have numerous general applications in the laboratory.
Grainger Fast Fill Funnel 1 qt. 1 Dia Spout
The Funnel King Fast Fill Spout Funnel is a polyethylene funnel designed for fast pouring. It has a 6 inch diameter top opening that tapers down to a 1-1/4 inch diameter spout. The overall height is 9 inches. This durable, chemical resistant funnel has a ribbed exterior for a non-slip grip. It can transfer up to 5 gallons per minute. The spout has a cap for dust protection. This funnel is ideal for automotive fluids, chemicals, grain and feed.
Bellco Glass, Inc. Aseptic Fill Bell,20mm
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: 22x75mmTubing Size: 1/4″Size: 20mm
Foxx Life Sciences Autofil 2 Bottle Top Filter, Funnel Only, 250 mL, 0.1 µm PES Membrane, Sterile, 12/CS
The Autofil 2 Bottle Top Vacuum Filter Funnel Only features 0.1um, 0.2um, or 0.45um PES membranes. Perfect for filtering FBS and other viscous solutions. The membrane is low protein binding and surfactant-free.
Features
Available in 250ml, 500ml and 1000ml. Funnel is compatible with GL 45 thread bottles
Bottle top Filter units include adapter for connecting to vacuum hose
Design includes the NEW EZLabpure™ ergonomic bottle shape with molded finger grip
GL 45 caps provides a convenient gripping surface
All units are sterile and manufactured from USP Class VI polystyrene in an ISO 13485 clean room
BURKLE INC Disposable liquid funnel PS, Ø 3.94 in. (100 mm), white
Disposable funnel for reliable filling of liquids, ideal for filling bottles and other containers with a narrow filler opening.
The disposable funnel ensures no loss when transferring liquid samples or free-flowing solids. That makes this practical and hygienic pouring aid a helpful accessory for sampling or in laboratories.
Clean room produced funnel with suspension eye and venting fins for ventilation to ensure uniform flow while pouring.
In combination with a filter paper the disposable funnel is also well suited for filtering.
Ace Glass, Inc. Powder funnel, 75mm, HW 24/40 joint
75mm heavy wall powder funnel for greater durability when pouring powders or liquids into ground joint containers. Funnel has a 24/40 standard taper joint.