{"id":9688,"date":"2017-01-16T07:00:32","date_gmt":"2017-01-16T06:00:32","guid":{"rendered":"https:\/\/www.gok-blog.de\/2017\/01\/16\/what-spanner-size-do-coupling-nuts-on-pressure-regulators-have-for-connecting-to-lpg-cylinders-in-germany\/"},"modified":"2026-06-15T09:20:29","modified_gmt":"2026-06-15T07:20:29","slug":"what-spanner-size-do-coupling-nuts-on-pressure-regulators-have-for-connecting-to-lpg-cylinders-in-germany","status":"publish","type":"post","link":"https:\/\/www.gok-blog.de\/en\/what-spanner-size-do-coupling-nuts-on-pressure-regulators-have-for-connecting-to-lpg-cylinders-in-germany\/","title":{"rendered":"What spanner size do coupling nuts on pressure regulators have for connecting to LPG cylinders in Germany?"},"content":{"rendered":"

Immediately after the gas cylinder, you generally need a pressure regulator, also known as a pressure reducer. At the pressure regulator itself, there is a coupling nut which the operator uses to create a tight seal on the gas cylinder.<\/p>\n

It’s at this stage of the process that many people start their search for the right spanner<\/strong>. Spanner size 17, 19 or even bigger. In the following overview, you will see which spanner you need for which cylinder connection.<\/p>\n

<\/span>Mini cylinder<\/span><\/h2>\n

We’ll start with the mini cylinder, the gas cylinder with the lowest filling weight, 425 grams of propane\/butane mixture fit into the cylinder, which is predominantly used by tradespeople \u2013 especially for roofing and plumbing work. You can screw a pressure regulator with inlet connector G 3\/8 LH nut onto this cylinder valve. This corresponds to a spanner size of 19<\/strong>.<\/p>\n

\"anschluss-kleinstflasche\"<\/a>
The cylinder connection for the mini cylinder requires a spanner size of 19 (see B).<\/em><\/strong><\/figcaption><\/figure>\n

<\/span>Small cylinder<\/span><\/h2>\n

This term covers the popular 5 and 11-kilogram gas cylinders. There are also a few more with different filling weights. On these cylinders in Germany, you always find a wing nut to tighten by hand, so you don’t have to use any spanner.<\/p>\n

For a tight connection, we recommend using the practical aid known as a MiniTool<\/a>.<\/p>\n

\"anschluss-kleinflasche\"<\/a>
The operator doesn’t need any spanner for a tight seal between the pressure regulator and the small cylinder (5 or 11 kilograms). It is recommended to use the MiniTool.<\/em><\/strong><\/figcaption><\/figure>\n

<\/span>Large cylinder<\/span><\/h2>\n

The 33-kilogram gas cylinder is the largest cylinder commonly available in Germany, and it didn’t get its name for nothing. If you want to create a tight connection between the pressure regulator, excess flow device or high pressure hose assembly, you need a spanner with spanner size 30<\/strong>.<\/p>\n

\"anschluss-grossflasche\"<\/a>
For example, 33-kilogram gas cylinders have a large cylinder connection. You need a spanner size of 30 to fasten a pressure regulator, excess flow device or high pressure hose assembly (see B).<\/em><\/strong><\/figcaption><\/figure>\n

<\/span>Combo connection<\/span><\/h2>\n

The combo connection is designed so that it fits on 5, 11 and 33-kilogram cylinders, making it a kind of one-size-fits-all solution. To be able to connect the pressure reducer tightly to the cylinder connection, the operator needs a size 30 spanner<\/strong>.<\/p>\n

\"anschluss-kombi\"<\/a>
It fits on a 5, 11 or 33-kilogram gas cylinder: the combo connection. The right spanner size is 30, the same as the large cylinder connection.<\/em><\/strong><\/figcaption><\/figure>\n

You can also find more information in the assembly and operating manual of the GOK product. We have summarised all inlet connectors common in Europe in an easy-to-read datasheet<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

The LPG cylinders commonly used in Germany for propane and butane mixtures have different connections. Often you can only make a tight connection using a spanner. We show you which spanner size you need for which cylinder connection.<\/p>\n","protected":false},"author":8,"featured_media":8862,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[394,395,396],"tags":[289,292,320,287],"ausgabe":[],"class_list":["post-9688","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-camping-leisure","category-grill-bbq","category-home-commercial","tag-cylinder-connection","tag-lpg-cylinder","tag-minitool-en","tag-pressure-regulator"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/posts\/9688","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/comments?post=9688"}],"version-history":[{"count":1,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/posts\/9688\/revisions"}],"predecessor-version":[{"id":14561,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/posts\/9688\/revisions\/14561"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/media\/8862"}],"wp:attachment":[{"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/media?parent=9688"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/categories?post=9688"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/tags?post=9688"},{"taxonomy":"ausgabe","embeddable":true,"href":"https:\/\/www.gok-blog.de\/en\/wp-json\/wp\/v2\/ausgabe?post=9688"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}