Description
Seals for conical ground joints made from PTFE are laboratory consumables intended for standard ground joint 29. These seals are used with conical ground glass joints in laboratory glassware assemblies for distillation and extraction as well as general vessel connections. The product comprises PTFE seals matched to standard ground joint size 29 and belongs to the seals with ground glass joints and ridged sleeves group within laboratory glass components. Each pack contains 50 pc(s), giving laboratories a practical quantity for stocking and routine maintenance of ground-joint apparatus. Pack weight is 0,015 kg. Available from manufacturer Glindemann, the seals serve as dedicated sealing elements wherever conical ground joints of size 29 are assembled in research, teaching or routine laboratory workflows. They support glassware setups that rely on standard ground joint 29 connections and fit established laboratory practice for consumable joint seals. The unit quantity of 50 pc(s) is convenient for laboratories that regularly equip or service distillation, extraction and related glass systems using conical ground joints.
This article belongs on Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 50 pc(s)
- Material: PTFE
- Standard ground joint: 29
- Weight: 0,015 kg
- Product type: Seals for conical ground joints
- Application area: Distillation and extraction glassware
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Distillation & extraction glassware
Sub-category
Ground-joint glassware (other)
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Questions about Seals f. conical ground joints, PTFE, for standard ground joint 29, 50 unit(s)
What is this article?
Seals f. conical ground joints, PTFE, for standard ground joint 29, 50 unit(s) is the article on this page. Luminix Health distributes Glindemann 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?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.

