Product features

Joint with stopcock and stand ground mouth is an accessory for laboratory glass instruments, usually made of glass, and some pistons are made of materials such as polytetrafluoroethylene. It consists of a standard ground stopper and a joint with a piston. The ground stopper is used to seal the container, and the piston joint can control the flow of liquid or gas. The ground part meets standard specifications, such as 14#, 19#, 24#, etc., and can be tightly connected with instruments such as flasks and conical flasks with the same specifications to ensure the sealing of the device. The piston part can adjust the opening and closing of the channel and the flow rate by rotation, which is convenient for accurately controlling the flow of substances in the experiment. It is often used in experiments such as distillation, fractionation, and gas preparation to achieve precise control of the reaction process or separation process.

Joint with stopcock and stand ground mouth has standard piston joint specifications, and the ground mouth meets general specifications, and can be tightly adapted and connected with a variety of instruments of the same specifications; it is flexible to control, and the on-off and flow rate of liquids and gases can be accurately controlled by rotating the piston; it has good sealing, the ground mouth fits tightly, and the piston and the inner wall of the joint have a high fit to prevent leakage; the material is suitable, mostly made of high borosilicate glass, with strong chemical stability, and some piston materials have good corrosion resistance; it is easy to operate, easy to install, disassemble and adjust, and convenient for experimental operations.

Product details

We can produce different joints as per customer’s requirements.We can also print your logo on the joints if the quantity is large,please feel free to contact us online.

Product specifications

Product applications

(1) Distillation and fractionation: connect to distillation flasks and other instruments to control the receiving and discharging of fractions, and adjust the pressure in the distillation system.

(2) Gas experiments: used for gas preparation and collection devices, control gas flow direction and flow, or switch between different gas paths.

(3) Chemical reactions: connect to reaction vessels, add reagents as needed, control the reaction process, and isolate the reaction system.