Protection all the way to the arc: SVS standards for gas nozzles
Gas nozzles with tight dimensional tolerances ensure a secure fit in the torch and a defined shielding gas flow. Polished inner surfaces promote even gas distribution across the weld. Temperature-resistant materials maintain their shape and function even at high cycle times. Optional coated versions reduce spatter adhesion and facilitate cleaning.
Available in standard dimensions or as a custom design based on drawings or samples. We precisely tailor the geometry and material to your fixture and process requirements.
Catalog
Catalog
| Drawing | Description | Manufacturer | Burner | Article No. | Action |
|---|---|---|---|---|---|
 | NW16x76 push-on conical | Binzel | MB26/401 | 145.12.030 | |
| NW20x76 push-on cyl | Binzel | MB26/401 | 145.11.030 | |
 | NW12x57 push-on | Binzel | MB25 | 145.12.003 | |
| NW12x57 push-on | Binzel | MB25 | 145.13.003 | |
 | NW11x56 push-on | Cloos | SL9 | 063.010.100 | |
 | NW17x64 push-on | Cloos | SL10 | 065.008.200 | |
| NW15x64 push-on | Cloos | SL10 | 065.008.100 | |
| NW11x64 push-on | Cloos | SL10 | 065.008.000 | |
 | NW12,5x55 push-on | Cloos | SL69 | 65,002,300 | |
 | NW13x70 push-on | Dinse | DIX 1-2-013 | ||
| NW15x70 push-on | Dinse | DIX 1-2-015 | ||
| NW18x70 push-on | Dinse | DIX 1-2-018 | ||
 | NW15x63 | 6663/5 | |||
 | NW12x68 | Dinse | 520 | DIX 1-3-5212 A | |
| NW15x68 | Dinse | 520 | DIX 1-3-5215 A | |
 | NW13x67 | SKS | 401-48-50G |
Upload your technical drawing – we develop the perfect solution for your production line.
Versions
Versions
Conical designs concentrate the gas flow into a narrow area. This creates a compact protective atmosphere with precise alignment. This geometry is particularly suitable for welding in confined spaces.
Cylindrical designs widen towards the outlet. They create a wide gas coverage area and ensure a stable protective atmosphere over the entire weld zone. This shape is suitable for applications where high shielding gas coverage is required.
Options
Coating options
The nickel coating effectively reduces the burning-in of weld spatter, thereby extending the service life of the nozzle. At the same time, nickel reflects some of the heat radiation. The gas nozzle stays cooler and absorbs less thermal energy from the welding process.
Chromium forms a hard, smooth surface. It protects the nozzle from mechanical wear and makes it more difficult for spatter to adhere. Especially during high cycle times or when cleaning is required frequently, chrome plating facilitates maintenance and maintains consistent gas flow over longer periods.
The ceramic coating is particularly effective in TIG welding. It reliably protects against heat and ensures a long service life, even with intensive use. The thermal insulation also reduces the stress on adjacent torch components.
If a coated gas nozzle is not used, the adhesion of weld spatter can be significantly reduced with WIRBALIT® Anti-Spatter Grease. To do this, the nozzle is briefly dipped in the grease before the welding process. The resulting separating layer prevents spatter from burning into the weld and facilitates subsequent cleaning.
What lies behind consistent manufacturing quality
All components are manufactured in Germany and can be precisely tailored to your application. Standard versions are immediately available, ensuring short delivery times.
Manufactured with tight tolerances on high-performance machines with stable clamping systems and consistent tool settings to prevent dimensional deviations across series.
Consistently machined contact surfaces with low roughness reduce contact resistance and promote even current distribution across the weld zone.
All electrodes undergo quality-assured testing. For demanding use cases, we offer individual testing according to defined specifications.
We offer bespoke designs based on your technical specifications. Geometry and material are co-developed with your team to meet your production requirements.
Decades of experience shape every SVS product and contribute to the development of technical standards as an active member of the German Welding Association (DSV).
SVS Performance Features
For over 60 years, we have been a reliable partner in welding technology for manufacturers worldwide.
Applications
The function of gas nozzles in MIG/MAG and TIG welding
The gas nozzle is located at the front end of the welding torch and encloses the contact tip. During welding, the arc is created between the consumable electrode or weld seam and the workpiece. The gas nozzle directs the shielding gas precisely to this area, creating a uniform atmosphere that protects the arc and molten pool from air ingress. It limits the gas flow to the outside and directs it. At the same time, it protects the torch head from welding spatter and thermal stress.
Quality-relevant features of gas nozzles
The nozzle must distribute the shielding gas evenly along the weld zone. Even slight deviations in geometry noticeably alter the pressure curve and gas distribution. The appropriate design depends on the torch type, distance to the weld, and the shielding gas used.
The nozzle should be smooth and free of deposits on the inside. Manufacturing marks or spatter residue disrupt the gas flow and weaken the protective effect. Regular cleaning and, if necessary, coating facilitate maintenance and maintain functionality.
The material determines the nozzle's basic resilience to heat, wear, and mechanical stress. We would be happy to advise you on which material works best for your application to maximize service life and process reliability.
Thermal stress and welding spatter change the nozzle geometry over time. This leads to irregular gas flow and impairs the protective effect. Materials with high wear resistance and suitable coatings extend service life.
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