# Category: WEH quick couplings - [The TW17-19 quick coupling](https://menet-trend.hu/en/nonox-world/the-tw17-19-quick-coupling.md) — WEH's hand-operated TW17, TW18 and TW19 quick couplings make a leak-free connection to a thread without any screwing. How the clamping jaws work, what pressure the standard couplings take, and where they earn their keep in pressure and leak testing. - [WEH® CNG fuelling solutions](https://menet-trend.hu/en/nonox-world/weh-cng-fuelling-solutions.md) — Top quality – maximum SAFETY. WEH offers a range of certified products for the safe and simple refuelling of CNG-powered vehicles: fuelling nozzles and fuelling guns, receptacles, breakaway couplings, check valves, filters, hoses. WEH® technology for the fast and safe refuelling of CNG-powered vehicles. - [The versatile FE quick coupling](https://menet-trend.hu/en/nonox-world/the-versatile-fe-quick-coupling.md) — For pressure and vacuum testing of tubes, hoses and test pieces with male threads. The NONOX WEH FE coupling connects hoses, tubes and male-threaded parts quickly and trouble-free, with a perfect seal. With its elastomer sealing surface, the FE coupling is the most suitable solution for round profiles. - [WEH® refrigeration quick couplings](https://menet-trend.hu/en/nonox-world/weh-refrigeration-quick-couplings.md) — REFRIGERATION AND AIR-CONDITIONING TECHNOLOGY. Why bother with all that screwing about? Connect in a single movement! The WEH® range is wide, including NONOX stainless and acid-resistant versions, for the safe and efficient filling, testing and recovery of refrigeration equipment. A few application examples: - [It deserves top-quality seals](https://menet-trend.hu/en/nonox-world/it-deserves-top-quality-seals.md) — Just as a top-performance machine deserves top-quality oil, so a top-performance NONOX stainless or acid-resistant quick coupling deserves a top-quality seal. WEH's development engineers design the WEH NONOX stainless and acid-resistant quick couplings to stand their ground in extreme industrial applications. - [WEH® valve solutions](https://menet-trend.hu/en/nonox-world/weh-valve-solutions.md) — WEH® offers a wide product range of check valves for both general and special applications: liquid and gaseous media; a wide choice of materials and connection profiles, including NONOX stainless and acid-resistant versions; pressure range from 0.01 bar up to 1,000 bar. - [The TW 141 quick coupling](https://menet-trend.hu/en/nonox-world/the-tw-141-quick-coupling.md) — WEH has developed a NONOX stainless and acid-resistant quick coupling suitable for filling, function-testing and leak-testing closed cooling systems. The TW141 type connects easily to straight tubes, in NONOX stainless or acid-resistant versions – without any screwing. For applications where the tubes are difficult to reach, an extended version is available. --- HTML: