Many gas systems in leisure vehicles are equipped with hose assemblies featuring the following connection configurations:<\/p>\n
- \n
- Union nut G\u202f1\/4 LH-UN x pipe nozzle 8<\/strong><\/li>\n<\/ul>\n
This variant uses the so-called cutting ring connection<\/strong>. During initial installation at the factory or in original equipment, a cutting ring is pushed onto the pipe nozzle together with the union nut and tightened. The cutting ring cuts into the pipe nozzle with the union nut, creating a permanent, gas-tight connection.<\/p>\n
However, this type of assembly causes a lasting visual alteration<\/strong> to the pipe nozzle. When the connection is later loosened, the cutting ring and union nut remain on the pipe nozzle. As a result, when removing the old gas hose, it appears as though it had a different connection. When searching for a new hose assembly in specialist shops, it then becomes apparent that such a hose is not available pre-assembled.<\/p>\n
![\"The](\"https:\/\/b15asa3.myrdbx.io\/wp-content\/uploads\/2025\/10\/Montage-Schneidringverschraubung-an-Gasschlauch1.jpg\" "\\"\\"")
<\/a>The left part of the image shows a gas hose with pipe spigot and G\u202f1\/4 LH-UM union nut. During initial installation, the cutting ring and union nut are pushed onto the pipe spigot and secured to the bulkhead fitting. On the right, all components are shown at a glance.<\/figcaption><\/figure>\n ![\"In](\"https:\/\/b15asa3.myrdbx.io\/wp-content\/uploads\/2025\/10\/Montage-Schneidringverschraubung-an-Gasschlauch2.jpg\" "\\"\\"")
<\/a>In the left section of the image, the cutting ring and union nut can be seen in the tightened position on the pipe spigot. These ensure a permanently leak-tight connection. When loosened, the cutting ring and union nut remain on the pipe spigot and permanently alter its appearance.<\/figcaption><\/figure>\n <\/span>Why the Gas Hose Appears Different After Removal<\/span><\/h2>\n
When the union nut with the cutting ring is pushed onto the hose with pipe nozzle and tightened, the cutting ring cuts permanently into the pipe nozzle.<\/strong> The component compresses axially and radially onto the nozzle, thereby sealing the connection.<\/p>\n
This means: what was originally installed as a pipe nozzle appears, after the hose is removed, to be a threaded connection. The union nut along with the cutting ring remains on the pipe nozzle, creating the impression that the gas hose had a right-hand thread connection.<\/p>\n
In other words, the connection configuration has not fundamentally changed<\/strong> \u2013 it has merely undergone a visual alteration due to the nature of the connection during disassembly.<\/p>\n
Further technical details on the function can be found in the datasheet on cutting ring fittings<\/a>.<\/p>\n
<\/span>How to Choose the Right Replacement Gas Hose During Replacement<\/span><\/h2>\n
If you wish to replace the gas hose assembly with the connection configuration G\u202f1\/4 LH-UN x pipe nozzle 8<\/strong> (typically item no. 04\u202f436\u202f02<\/strong> in caravans), please note that the connection is not fully included in the set. You must be sure to order the appropriate connection components separately<\/strong>.<\/p>\n
The following components are required:<\/p>\n
- \n
- Union nut: item no. 07\u202f 108\u202f 00<\/strong><\/li>\n
- Cutting ring: item no. 07 \u202f151\u202f 00<\/strong><\/li>\n<\/ul>\n
Both parts are necessary to create a new, gas-tight connection.<\/p>\n
If you are unsure, we recommend contacting the manufacturer. You can reach us by email at info@gok.de<\/a> or by phone at 09332\u202f404-0.<\/p>\n
Further technical details can be found in the installation instructions for cutting ring fittings<\/a>.<\/p>\n
- Cutting ring: item no. 07 \u202f151\u202f 00<\/strong><\/li>\n<\/ul>\n
- Union nut: item no. 07\u202f 108\u202f 00<\/strong><\/li>\n