Description
Ground joint retainers NS 19 POM are laboratory fastening elements for securing standard taper ground glass joints in the NS 19/26 to NS 19/38 size range. Made from polyoxymethylene (POM), they provide a straightforward mechanical hold for conical and spherical ground joints used in everyday glassware assemblies. Each retainer has a net weight of 0,003 kg and a matching gross weight of 0,003 kg, keeping added mass on the apparatus minimal. The items are supplied in packs of 10 pieces, which suits laboratories that need to equip several joints at once or maintain a small stock of spares. These retainers from manufacturer Witeg belong to the established categories of conical and spherical ground-joint clamps and are intended for distillation, reaction, extraction and general laboratory setups that rely on the NS 19 joint family. Their compact POM construction integrates cleanly into existing glassware lines without bulky hardware. Originating from Spain, the retainers follow the dimensional conventions associated with NS 19/26 through NS 19/38 joints and support reliable connection of matching male and female ground surfaces in research, teaching and analytical environments.
This article belongs on Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 10 pc(s)
- Material: POM
- NS range: NS 19/26 - 19/38
- 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 19 POM
What is this article?
Clips for joints ST 19 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 Labware.
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 Labware.
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.