Stoppers
Stoppers, also known as bungs, are used to give an airtight seal to laboratory flasks and test tubes by fitting tightly inside the neck of the container and preventing material from spilling. Stoppers can be made of glass, cork, rubber, or silicone. They are typically designed with a conical shape, but straight, flanged, and tapered options are also available.
Stoppers are the preferred choice for many applications requiring a tighter seal or a greater degree of chemical resistance. They also provide a good seal when a solution needs to be shaken or mixed without spilling. Stoppers are generally cylindrical in shape and have a tapered bottom end. They may be marked with a stopper number or size on the top and bottom diameters of the stopper. Sizing can vary among manufacturers.
Stoppers are available in a solid design or with holes known as positions placed in the top. Positions allow easy access to the material contained in the sealed vessel by pipettes, tubing, or other equipment without full removal of the stopper.
What Types of Stoppers Are Available?
• Turnover stoppers have external serrations to create an excellent internal seal combined with a flexible turnover sleeve that folds down over the container’s neck to create a double seal
• Serum bottle or vial stoppers have two or three legs with external serrations or straight sides and a flanged top to create an airtight seal
• Straight bromobutyl plug-type stoppers provide a maximum seal for vials and serum bottles with a straight-wall glass finish
• Ultra-pure, straight bromobutyl plug-type stoppers provide high chemical purity and low gas permeability. They offer excellent performance during freeze drying processes such as lyophilization, where stoppers must remain stable during transfer and sublimination phases
• Silicone recessed septa stoppers are non-toxic and have external serrations to create an effective internal seal
Med Vet International 2.4mm x 31mm 4-Hole Compression Plate, J1074A
Many fractures in feline and small canine patients are too small for the 2.0mm DCP and the 2.7mm CDP is too large.The difference between these plates is enormous compared to the difference between 2.7 and 3.5 CDPs. The AMI (resistance to bending) of the 2.7 CDP is 20 times stiffer than the 2.0 DCP. The AMI of the 2.4 DCP is 10 times that of the 2.0 DCP.The solution is a 2.4 series of plates and screws. The plates in both size and strength are midway between 2.0 and 2.7 DCPs. The range and specifications are shown below. The standard 1.5mm hex screwdriver (used for 1.5 and 2.0 screws) is required. The pilot drill is 1.8mm and dedicated instrumentation such as load/neutral guides are also available.
Grainger Stopper Sz 11.5 50 mm BDia Black 0 PK6
The 16VC10 is a 10-gallon, vertical, oil-lubricated air compressor from Ingersoll Rand. It has a 2-stage pump that delivers 16 CFM at 175 PSI with a maximum pressure of 175 PSI. The motor is 5 HP, 230V, 1 phase. It has a cast iron cylinder and an ASME coded air receiver tank. The compressor includes an aftercooler, belt guard, and automatic tank drain. This air compressor is designed for automotive service, body shops, fleet maintenance, machine shops, production lines, wood working, dry cleaners, car washes, general maintenance/repair shops, tire shops, and other light industrial applications. The 16VC10 provides a reliable supply of quality air for air tools and other pneumatic equipment.
Grainger Stopper Sz 14 75 mm BDia Black 0
The 16WC45 is a 16-inch diameter, 45-degree elbow made of carbon steel. It has a schedule 40 wall thickness and is rated for 150 psi working pressure at 100 degrees Fahrenheit. The elbow has beveled ends and is made in the USA. It conforms to ASTM A234 standards for carbon steel pipe fittings. The elbow is typically used in steam, water, air and other low pressure applications. It provides a cost-effective way to make 45 degree turns in piping systems.
