Airlock 2-bubble with rubber cap ∅50mm

SKU: TXP0030
EAN: 2000000027371
Brand: Polsinelli
Unit: pc
Stock qty: 26

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.

Price:

7,00 €

Description Specification

Quality Two-Piece Airlock for Fermentation

Reliable airlock for containers with volume 1-50 liters, ensuring optimal fermentation process. The set includes a rubber stopper for 50mm bottle neck and fits into a 9 mm hole.

Main advantages:

Effectively protects against insects and contamination
Prevents oxidation process
Allows carbon dioxide to safely escape
Ensures hermetic environment

Working principle:

The water in the airlock creates a hermetic barrier that prevents outside air access. Carbon dioxide produced during fermentation escapes in a controlled manner through the water lock, maintaining optimal conditions in the fermenting liquid.

Maintenance and use:

Regular water level check is necessary due to evaporation
Possible to use 10% sulphite solution instead of water
Requires thorough attention during cleaning

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 50 mm rubber stopper to match a 50 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	Zweiteiliger Gärspund mit Ø50mm Gummistopfen — für 1-50L Behälter, passt in 9mm Öffnung.
lumav_meta_description_en	Two-piece airlock with a Ø50mm rubber stopper — for 1-50L containers, fits a 9mm hole.
lumav_meta_description_et	Kaheosaline õhulukk kummikorgiga Ø50mm — 1-50L mahutitele, sobib 9mm avasse.
lumav_meta_description_fi	Kaksiosainen käymislukko Ø50mm kumitulpalla — 1-50L astioille, sopii 9mm reikään.
lumav_meta_description_lt	Dviejų dalių fermentacijos vožtuvas su Ø50mm guminiu kamšteliu — 1-50L indams, tinka 9mm angai.
lumav_meta_description_lv	Divdaļīgs raudzēšanas korķis ar Ø50mm gumijas korķi — 1-50L traukiem, der 9mm atverei.
lumav_meta_description_sv	Tvådelat jäsningsrör med Ø50mm gummipropp — för 1-50L kärl, passar 9mm hål.
lumav_meta_keywords_de	Gärspund, 2-Blasen-Schloss, Gummistopfen, Wasserschloss, kleiner Behälter
lumav_meta_keywords_en	airlock, 2-bubble airlock, rubber stopper, fermentation lock, small container
lumav_meta_keywords_et	õhulukk, 2 mulliga lukk, kummikork, käärimislukk, väike mahuti
lumav_meta_keywords_fi	käymislukko, 2-kuplalukko, kumitulppa, vesilukko, pieni astia
lumav_meta_keywords_lt	fermentacijos vožtuvas, 2 burbulų užraktas, guminis kamštelis, vandens užraktas, mažas indas
lumav_meta_keywords_lv	raudzēšanas korķis, 2-burbuļu slūža, gumijas korķis, ūdens slūža, mazs trauks
lumav_meta_keywords_sv	jäsningsrör, 2-bubbellås, gummipropp, vattenlås, litet kärl
lumav_meta_title_de	2-Blasen-Gärspund mit Gummikappe Ø50mm · FERMETECH
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lumav_meta_title_fi	2-kuplainen käymislukko kumitulpalla · FERMETECH
lumav_meta_title_lt	Fermentacijos vožtuvas 2 burbulų Ø50mm · FERMETECH
lumav_meta_title_lv	Raudzēšanas korķis 2-burbuļu Ø50mm · FERMETECH
lumav_meta_title_sv	2-bubbel jäsningsrör med gummipropp · FERMETECH
Weight (kg)	0.090000
High (m)	0.08
Width (m)	0.065
Length (m)	0.065