A 4-way stopcock allows for 360 degrees of rotation and has the states (shown below) for each of the four available positions. A 3-way stopcock has only three positions and has the first three states shown below.

What the difference between a 3-way stopcock and a 4 way stopcock?

A 4-way stopcock allows for 360 degrees of rotation and has the states (shown below) for each of the four available positions. A 3-way stopcock has only three positions and has the first three states shown below.

What is a 3-way stopcock used for?

JCM MED 3-Way stopcocks are single-use sterile medical products meant to be used in conjunction with other devices during infusion therapy. Their main functions are : To safely stop or restore an infusion flow. To provide two additional ports for administration of any fluid.

What is stopcock grease?

Stopcock grease is a silicone lubricant with high film strength. It is ideal for lubricating stopcocks or sealing desiccators and vacuum chambers.

What is a 2 way stopcock?

Two-way valves are used for transfer of liquids or gases in order to release the flow, to block it or to change its direction.

What is vacuum grease used for?

Vacuum grease is a lubricant with low volatility and is used for applications in low pressure environments. Lubricants with higher volatility would evaporate, causing two problems: They would not be present to provide lubrication. They would make lowering the pressure below their vapor pressure difficult.

What is a stopcock in chemistry?

Stopcocks regulate the flow of liquids or low pressure gases just like a kitchen water faucet. Stopcocks serve many functions in the laboratory and come in many different forms.

Why are needleless connectors important?

Needleless connectors (NCs) are essential devices which connect to the end of vascular catheters and enable catheter access for infusion and aspiration. There are various different designs which make it difficult for purchasers to identify the features which present the least risk and greatest safety.

What are the different types of stopcocks and their connections?

Connections include male luer slip, male luer lock, male luer with spin lock, rotating male luer lock, female luer lock, and tubing ports. These wholesale stopcocks feature unique low-torque handles that are easy to grip and turn, as well as extended female luer connections to enhance clarity and reduce visual interference from the handles.

What is the internal diameter of the stopcock?

Stopcock has a 9-French internal diameter providing higher flow rates … Stopcock 3 Way…

What kind of stopcock does qosina use?

Qosina part #99763 is a 3-way stopcock that features 2 female luer locks and a rotating male luer lock. With a poycarbonate (PC) body and blue Acetal handle, this 3-way stopcock can withstand up to 1050 psi and is designed for the manual regulation of liquid or gas flow in a line.

Why buy wholesale medical stopcocks?

These wholesale stopcocks feature unique low-torque handles that are easy to grip and turn, as well as extended female luer connections to enhance clarity and reduce visual interference from the handles. Qosina offers a wide variety of 1-, 2-, 3-, and 4-way medical stopcocks and manifolds in various configurations, pressure ratings, and colors.