功能

• Suitable for preventing the fitting from falling out (slight pressure).
• High chemical and acid resistance due to the of a glass core bar. • Good roundness and surface accuracy of the sealing surface make it suitable for in high vacuum.
• The precision of the screw part is high, and the valve can be opened and closed with a light touch.
• Replaceable core rods and easy maintenance.
• The tolerance for glass tubes L1 and L2 is ±5 mm.