Beschreibung
Ground joint retainers NS 29 POM are laboratory clamps designed to hold standard taper ground glass joints in the NS 29/32 to NS 29/42 size range. Constructed from polyoxymethylene (POM), they deliver a simple mechanical fastening solution for conical and spherical ground joints used throughout laboratory glassware assemblies. Each retainer has a net weight of 0,008 kg and a gross weight of 0,008 kg, remaining manageable while providing a firm hold on larger NS 29 joints. Supplied in packs of 10 pieces, the product allows laboratories to equip several apparatus lines or keep ready spares. These retainers from manufacturer Witeg fall within the categories of conical and spherical ground-joint clamps and are intended for distillation, reaction, extraction and general laboratory work that employs the NS 29 joint family. The compact POM design joins matching male and female ground surfaces without introducing bulky fixtures. Originating from Spain, the retainers follow the dimensional conventions of NS 29/32 through NS 29/42 joints and support consistent mechanical connection in research, teaching and analytical laboratory environments that rely on standardised ground-glass systems.
This article belongs on Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 10 pc(s)
- Material: POM
- NS range: NS 29/32 - 29/42
- Country of origin: Spain
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Category
Distillation & extraction glassware
Sub-category
Ground-joint glassware (other)
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Questions about Clips for joints ST 29 POM
What is this article?
Clips for joints ST 29 POM is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Ground-joint glassware (other), inside Distillation & extraction glassware, in Laborbedarf.
This is ground-joint glassware that is not a head, a condenser or a Soxhlet: receivers, blank joints, odd adapters. A ground joint is named by the wide end and the length, such as 29/32. Mismatched joints do not seal, even with grease.
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 Ground-joint glassware (other). The catalogue is Laborbedarf.
Shelves beside this one are Distillation heads, adapters & columns, Condensers and Soxhlet & extraction apparatus.
What should I check before I order?
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.
How does ordering and shipping work?
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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.