Description
Cold trap, 500 ml, 2-piece is a laboratory glassware component designed for condensing and collecting vapours in high-vacuum systems. The two-part assembly comprises a lower section fitted with KF DN 50 flange, gasket and clamp, while the upper section provides two thick-walled KF DN 16 connections. Total capacity is 500 ml with an approximate condensate volume of 200 ml, allowing efficient trapping of condensable vapours to protect pumps and maintain vacuum integrity. Constructed from borosilicate glass 3.3, the cold trap delivers chemical resistance and thermal stability under cryogenic cooling. This cold trap from manufacturer Rettberg is intended for mounting on high-vacuum lines, metal flange components and similar apparatus used in freeze-drying, reduced-pressure distillation and related processes. Net weight is 1,012 kg, reflecting a robust build suitable for permanent installation in research and industrial vacuum setups. The design supports reliable intermediate condensation stages while remaining compatible with standard KF flange hardware.
This article is part of Hose connectors, adapters & fittings, in Tubing, hoses & fittings.
Key features
- Pack size: 1 pc
- Product type: Cold trap
- Capacity: 500 ml
- Condensate volume: approx. 200 ml
- Material: Borosilicate glass 3.3
- Connections: Lower KF DN 50 with gasket and clamp, upper 2× KF DN 16
- Technical Information Sheet:
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Questions about Cooling trap, 500 ml, 2-piece, lower part flange DN 50,
What is this article?
Cooling trap, 500 ml, 2-piece, lower part flange DN 50, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Hose connectors, adapters & fittings, inside Tubing, hoses & fittings, in Labware.
A hose connector or adapter joins two lines, or steps one bore down to another. The barb diameter has to match the tube, and the thread has to match the stopcock or the bottle. Most leaks are a mismatch here, not a hole in the tube.
Tubing is how a liquid or a gas moves between two vessels without being poured. Silicone stays flexible and survives repeated autoclaving. PTFE resists almost every solvent and is stiff. PVC is the ordinary flexible line for water and for mild aqueous work. The fitting, not the tube, is what usually leaks: the barb, the thread and the stopcock have to match the tube bore. Glass and plastic apparatus around these lines is indexed under ISO laboratory ware.
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The category is Tubing, hoses & fittings. The sub-category is Hose connectors, adapters & fittings. The catalogue is Labware.
Shelves beside this one are PVC, PTFE & other tubing, Stopcocks & valves, Silicone tubing and Tubing accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.