Airlock 2-bubble with rubber cap ∅65mm
EAN: 2000000027395
Brand: Polsinelli
Unit: pc
Stock qty: 12
Delivery time within Estonia for stock items approx. 3-5 working days. NOTE! Due to the rapid price increase, prices for non-stock items may change without prior notice! Standard prices with 24% VAT.
Airlock for Fermentation Vessel - Quality Protection During Fermentation Process
A reliable airlock ensures the success of the process in your fermentation vessel. This 2-bubble model is specifically designed for containers with volumes of 1-50 liters and is installed in a 9 mm opening.
Main Features of the Airlock
- 65 mm rubber cork for bottle neck
- Effectively protects against flies and contamination
- Prevents oxidation process
- Suitable for wide range of fermentation uses
Working Principle of the Airlock
The airlock works through a siphon system where water prevents outside air access. Carbon dioxide produced during fermentation escapes through the airlock due to overpressure, maintaining optimal conditions in the container.
Maintenance and Usage
Regular checking and liquid refilling is necessary as water in the airlock may evaporate. Instead of regular water, a 10% sulphite solution can be used for disinfection. During cleaning, note that this model requires more thorough maintenance compared to cylindrical models.
Frequently asked questions about this product
How does a two-bubble airlock work, and why two bubbles?
Water held in the two chambers forms a one-way barrier: carbon dioxide produced during fermentation bubbles up and escapes, while outside air, insects and microbes cannot pass back in. The two-bubble (S-shaped) design keeps the water seal stable even during vigorous fermentation.
How much water should I add, and how do I maintain the seal?
Fill the airlock to the marked level with clean water (some makers add a little sanitiser solution). Check it regularly, because water can evaporate or be pushed out during active fermentation, and top it up so the seal is never lost.
Which container and bung size does this version fit?
It is designed for vessels of 1-50 litres and seats in a 9 mm hole, and this version comes with a 65 mm rubber stopper to match a 65 mm opening. Confirm that your vessel's neck or opening matches before buying.
What common mistakes should I avoid?
Do not let the water dry out, as that breaks the seal; do not overfill, or liquid can be sucked into the must if the temperature drops; and clean and sanitise the airlock between batches to prevent contamination.
| lumav_meta_description_de | 2-Blasen-Gärspund für 1-50L Behälter, ∅65mm Gummikappe für 9mm Öffnung. Schützt vor Fliegen und Verunreinigung. |
| lumav_meta_description_en | 2-bubble fermentation airlock for 1-50L vessels, ∅65mm rubber cap fits 9mm opening. Protects against flies and contamination. |
| lumav_meta_description_et | 2-mulliline käärimislukk 1-50L anumatele, ∅65mm kummikork 9mm avale. Kaitseb kärbeste ja saastumise eest. |
| lumav_meta_description_fi | 2-kuplainen käymislukko 1-50L astioille, ∅65mm kumitulppa 9mm aukkoon. Suojaa kärpäsiltä ja saastumiselta. |
| lumav_meta_description_lt | 2 burbulų fermentacijos vožtuvas 1-50L talpykloms, ∅65mm guminis kamštelis 9mm angai. Apsaugo nuo musių ir užteršimo. |
| lumav_meta_description_lv | 2-burbuļu raudzēšanas korķis 1-50L traukiem, ∅65mm gumijas korķis 9mm atverei. Aizsargā no mušām un piesārņojuma. |
| lumav_meta_description_sv | 2-bubbla jäsningsrör för 1-50L kärl, ∅65mm gummipropp för 9mm öppning. Skyddar mot flugor och kontamination. |
| lumav_meta_keywords_de | Gärspund, Gärverschluss, 2-Blasen, 65mm Gummikappe, Polsinelli |
| lumav_meta_keywords_en | airlock, fermentation lock, 2-bubble, 65mm rubber cap, Polsinelli |
| lumav_meta_keywords_et | õhulukk, käärimislukk, 2-mulli, 65mm kummikork, Polsinelli |
| lumav_meta_keywords_fi | käymislukko, vedenlukko, 2-kupla, 65mm kumitulppa, Polsinelli |
| lumav_meta_keywords_lt | fermentacijos vožtuvas, vandens spynelė, 2 burbulų, 65mm kamštelis, Polsinelli |
| lumav_meta_keywords_lv | raudzēšanas korķis, ūdens aizturis, 2-burbuļu, 65mm gumijas korķis, Polsinelli |
| lumav_meta_keywords_sv | jäsningsrör, jäsningslås, 2-bubbla, 65mm gummipropp, Polsinelli |
| lumav_meta_title_de | Gärspund 2-Blasen ∅65mm mit Gummikappe · FERMETECH |
| lumav_meta_title_en | Airlock 2-bubble ∅65mm with Rubber Cap · FERMETECH |
| lumav_meta_title_et | Õhulukk 2-mulliga ∅65mm kummikorgiga · FERMETECH |
| lumav_meta_title_fi | Käymislukko 2-kupla ∅65mm kumitulpalla · FERMETECH |
| lumav_meta_title_lt | Fermentacijos vožtuvas 2 burbulų ∅65mm · FERMETECH |
| lumav_meta_title_lv | Raudzēšanas korķis 2-burbuļu ∅65mm · FERMETECH |
| lumav_meta_title_sv | Jäsningsrör 2-bubbla ∅65mm med gummipropp · FERMETECH |
| Weight (kg) | 0.090000 |
| High (m) | 0.095 |
| Width (m) | 0.08 |
| Length (m) | 0.08 |
1,25 €
13,90 €
6,90 €
1,25 €
6,90 €















