Product features

Connection tube with two standard ground mouths is a component used to connect two glass instruments with standard ground mouths in chemical experiments. It is generally made of glass, and the shape is usually a straight tube or a curved tube with a certain angle, with a standard ground mouth at each end. There are many sizes of ground mouths, the most common ones are 14#, 19#, 24#, 29#, etc. The diameters of different sizes of ground mouths are different, and they can be tightly connected with glass instruments with the same specifications of ground mouths. By utilizing the high-precision matching between the standard ground mouths, the two ground mouths are tightly fitted by rotation or gentle squeezing to form a sealed connection, thereby achieving the connection between the two glass instruments and preventing gas or liquid leakage during the experiment. It has the advantages of good sealing and strong versatility.

Connection tube with two standard ground mouths has a smooth surface, no bulges, thickened glass, strong and durable, and high transparency. A variety of specifications, choose at will, clearly marked, easy to observe, and finely frosted. Welding is firm,it is a special glass material with low expansion rate, high temperature resistance, high strength, high hardness, high light transmittance and high chemical stability. It can be welded at 1100℃ and annealed at 600℃. The base is round and stable, and the workmanship is even and solid.

Product details

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

Product specifications

Product applications

Connection tubes with two standard ground mouths are mainly used to connect various glass instruments with standard ground mouths, such as connecting distillation flasks and condensers for distillation, connecting flasks and separatory funnels for adding liquid reagents in reactions, connecting flasks and thermometer sleeves for monitoring reaction temperature, etc., in order to build various chemical experimental devices such as distillation, reflux, and reaction.