Glass Connecting Pieces & Accessories

Conical ground joints are mostly used for laboratory glassware. They are suitable for use under vacuum or slight overpressure, in many cases even without clamps.

ground joints
Ground Joint Connecting Pieces Cone and socket are made of Borosilicate glass 3.3 Our conical joints are manufactured to an accuracy of only 1/10 of the admitted taper angle deviation.

For Connecting Pieces with Ground Joints



safety hook
Safety Hooks and Clamps Metal safety hooks are favourable used to secure pump stopcocks and conical ground joint connections on flasks. The necessary rubber stopcock securing and springs are described.

For Connecting Joint Accessories



springSprings & Sleeves These stainless steel made springs, bore of the spring line 5 mm, are suitable for securing conical ground joints in general. Sleeves with groove and made of PTFE can be used instead of lubricating grease when slight or medium vacuum is required.

For Springs & Sleeves



spherical jointsSpherical Ground Joints Cups and balls are made of Borosilicate glass 3.3 corresponding to DIN 12 244 part 1 and due to their high grinding quality interchangeable. Used with lubricating grease spherical joints provide a high tightness meeting the highest requirements.

For Spherical Ground Joints



spherical sleeveSpherical Joint Sleeves & Clips
Sleeves with groove and made of PTFE can be used instead of lubricating grease when slight or medium vacuum is required. They are set between cup and ball.
For Spherical Joint Sleeves & Clips

 

 

rotulex systemRotulex System
The Rotulex system offers an alternative for a grease-free connection of spherical ground joints and meeting the high requirements for tightness under vacuum andslight overpressure. The fire polished counterpart in ball shape has a groove to take a sealing.
For Rotulex System Components

 

 

rotulex systemRotulex System
The Rotulex system offers an alternative for a grease-free connection of spherical ground joints and meeting the high requirements for tightness under vacuum andslight overpressure. The fire-polished cup corresponds in its sizes to DIN 12 244 part 1. The fire polished counterpart in ball shape has a groove to take a sealing.

For Rotulex System Clamps

 

vacuum flat flangeVacuum Flat Flanges. Boro-silicate & Quartz Glass
We recommend this connecting system for greaseless connection of glass and peripherals with metallic connector e.g. pumps. Due to its shape, the tube ends are very stable and they are able to bear relatively high tightening. Used together with Orings they have a very low leakage rate.

For Vacuum Flat Flanges, Seals and Clamps

 

GL TheadsThreaded Glass Connectors
Screw thread connections offer some advantages, especially for connecting PTFE hoses or impulse generators. GL-threads with narrow tube according to DIN 12 216 are the most employed connection.

For GL Threaded Connectors

 

threaded connectorsThreaded Adapters & Seals
Seals are made of silicone caoutchouc with or without bore and suitable for the caps described above. Available in two different types. Type A with vulcanised-on PTFE washers and type B PTFE protected. Screw thread adapter They allow a flexible connection of glass screw threads.

For Threaded adapters and Seals

 

metric threaded adaptersMetric Threaded & GL Adapters
For connecting GL screw threads and conical ground joints. Screws are often used to adapt glass and metal. To connect these two materials without an adapter connectors with a metric thread are suitable

For Metric & GL Threaded Adapters



QVF Safety ConnectorsQVF Safety Adapters & Seals
This safety flat flange meets the highest requirements for glass connection and is especially suitable for direct connection to other pipe materials. We recommend the use as inlet or outlet connecting nipple at temperature jackets

reaction flask For QVF Safety Connectors & Seals



Flange ConnectorsFlange Connectors
This connection consists of flange rings, made of glass fibre reinforced thermosetting plastic, supports made of Polyamide and screws, washer, pressure springs and nuts, made of stainless steel.

reaction Vessels For Flange Connectors

 

Schott ConnectorsSchott Connectors
The flange system of the Tech flange system "Schott" is a widespreadly used system for components in units. Besides the safety flat flange system QVF, the "Schott" system is an alternative connecting system.
For Schott Connectors



plastic connectorsPlastic Connectors
This connection support made of thermosetting plastic is corrosion resistant and of low weight. Additional measures for conduction of electrostatic charges are not necessary. Delivery consists of flange rings, interfacing, screws, washer and nuts.

For Plastic Flange Connectors