• Material: Borosilicate glass 3.3
• Chemical Resistant
• Rota Flow

Here are some common uses for stopcocks with needle valves in a straight design with a General Purpose designation:

1. Laboratory Glassware:
   • Stopcocks with needle valves in a straight configuration are fundamental components of laboratory glassware setups, providing precise control over the flow of liquids or gases in various experimental procedures.
2. Chemical Synthesis:
   • These stopcocks are used in chemical synthesis processes to control the addition of reagents, the flow of reactants, or the collection of reaction products with precision.
3. Titration Experiments:
   • In titration experiments, needle valve stopcocks with a straight design are used to control the flow of titrant during the titration process, ensuring accurate and controlled addition.
4. Liquid Chromatography (LC):
   • These stopcocks can be integrated into liquid chromatography systems to control the flow of mobile phases or eluents during separation processes.
5. Gas Chromatography (GC):
   • In gas chromatography setups, needle valve stopcocks are utilized to control the flow of carrier gases, samples, or other gases within the system.
6. Reaction Setups:
   • Needle valve stopcocks with a straight design are used in experimental setups where precise control of the addition or mixing of reactants is required.
7. Vacuum Applications:
   • Straight needle valve stopcocks can be used in vacuum systems to control the flow of gases or liquids under reduced pressure.
8. Analytical Chemistry:
   • In analytical chemistry experiments, these stopcocks are used to control the flow of solutions during sample preparation or analysis.
9. Quality Control Processes:
   • Stopcocks with needle valves are used in quality control procedures to precisely control the addition of standards, reagents, or solutions during analytical testing.
10. Standardization of Glassware:
    • Compliance with industry standards ensures that the stopcocks meet specific quality and safety criteria, contributing to the standardization of laboratory glassware.
11. Educational Demonstrations:
    • These stopcocks are used in educational settings to demonstrate principles of fluid control and precision in laboratory experiments.