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
Ace Glass, Inc. 0-3 4 TEF-CAP PLUG (GB)
Replacement Tef-Cap plug for 0-3mm and 0-4mm High Vacuum Easy Action Stopcocks.
Ace Glass, Inc. Bubbler stopper only, #7 Ace-Safe™; hose connections, porosity B (70-100 micron) tip
Bubbler stopper only, #7 Ace-Safe™; hose connections, porosity B (70-100 micron) tip
Med Vet International Stacked Locking Hole Plate, 11 Hole, J0438LHP11
A construct using locking plates and screws acts as an internal/external fixator. The construct is stiffer than conventional plates and screws and will require less contouring as it is not essential that the plate contacts the bone. Locking plates and screws are particularly popular in TPLO where significant savings in time (and morbidity) can be made. Also useful in fracture work in situations where contouring and rigidity is a challenge. The head of Jorvet locking screws engages the plate in the standard format using a twin start fine thread. Jorvet screws are an exact fit for standard locking plates but utilize the conventional hex screwdriver rather than a star screwdriver.Locking screws are available in both 2.7 and 3.5 screw diameters. Each size requires its own dedicated drill guide. Jorvet locking plates have ‘stacked’ locking holes which allow more screws per bone fragment compared with dual hole type plates.Locking Plates 3.5mm Screw Hole - 11 Plate Length - 112
Grainger Stopper Sz 7 30 mm BDia Black 0 PK15
The Grainger 16ZD64 is a 3M Scotch-Brite General Purpose Hand Pad that can be used for cleaning and scouring. It features an open web construction with non-woven fibers that are non-scratching on most surfaces. This 6 inch by 9 inch hand pad has a medium duty abrasiveness level. It can be used wet or dry for scrubbing, wiping and polishing. The 3M Scotch-Brite material resists fraying and tearing.
MSC Salisbury Electrical-Insulating Gloves, Class 00, Rubber, Blue, Size 9
Electrical-insulating gloves are essential for worker safety, providing protection against electrical hazards. These Class 00 gloves are made from durable rubber, designed to offer maximum use voltage of 500V AC and 750V DC. Measuring 11 inches in length and featuring a straight cuff style, they meet rigorous standards for electrical protection.
- Provide protection up to 500V AC and 750V DC.
- Constructed from durable rubber material.
- Class 00 voltage protection.
- 11 in length.
- Meets ASTM D 120 and IEC EN60903 standards.
- Straight cuff style.
- Type II electrical insulating.
- Designed for both left and right hand use.
Ace Glass, Inc. 34/45 Bent Vertical Hose Barb Vacuum Trap Stopper
34/45 Bent Vertical Hose Barb Vacuum Trap Stopper