Description
Double socket NS 29/32 is a precision ground-joint laboratory component configured as a double female socket for connecting glassware in chemical apparatus. It is manufactured to Form C according to DIN 12249 PRECISO and carries the standard joint size NS 29/32. Key dimensions are an outer diameter of 33 mm, an overall length of 170 mm and a wall thickness of 2,0 mm, giving a robust profile suitable for bench-scale distillation, reflux and multi-neck reaction systems. The piece is supplied as a single unit with a net weight of 0,076 kg. In apparatus assemblies the double socket accepts matching male cones on both sides, enabling vacuum-tight, interchangeable connections when properly greased or fitted with PTFE sleeves. This double socket from manufacturer Witeg is intended for organic synthesis, analytical sample preparation and teaching laboratories that rely on standardised ground-glass joints. Its PRECISO designation underscores dimensional consistency with other DIN 12249 glassware, simplifying custom manifold design and straightforward replacement of worn joints. The widely used NS 29/32 size makes the component a practical building block for medium-scale flasks, condensers and intermediate adapters.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Joint size: NS 29/32
- Form: C
- Standard: DIN 12249 PRECISO
- Outer diameter: 33 mm
- Length: 170 mm
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Questions about ST-Socket ST 29/32 double
What is this article?
ST-Socket ST 29/32 double is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Distillation heads, adapters & columns, inside Distillation & extraction glassware, in Labware.
A still head, an adapter or a column is the glass between the boiling flask and the condenser. A Vigreux or packed column gives the vapour a surface so a closer-boiling mixture can separate. The joint sizes at both ends have to match the flask and the condenser.
Distillation separates liquids by boiling point. A condenser turns the vapour back into liquid: Liebig, coil and cold-finger shapes differ in how much cooling surface they offer. A still head and a column sit between the flask and the condenser. A Soxhlet extractor washes a solid again and again with the same solvent. Ground joints have a standard size, and the joint, not the flask, is what has to match. The pieces are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Distillation & extraction glassware. The sub-category is Distillation heads, adapters & columns. The catalogue is Labware.
Shelves beside this one are Condensers, Ground-joint glassware (other) and Soxhlet & extraction apparatus.
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.