
Functions
- The pressure regulator is designed for an outlet pressure of up to 300 bar and is suitable for welding gases, mixed gases and shielding gases such as argon, CO2 or Mix 18.
- Equipped with a W21.8 x 1/14" thread, the pressure regulator can be used universally and fits the most common standard gas cylinders.
- Thanks to the first-class brass workmanship and solid construction, the cylinder pressure regulator is extremely robust, durable and can withstand the highest loads.
- Manufactured in accordance with DIN EN ISO 2503, the pressure regulator is perfectly suited for the extraction of compressed technical gases and is indispensable for all shielding gas welding processes.
- The pressure regulator reliably ensures a constant gas flow. The flow rate is infinitely variable from 0 to 30 l/min (argon / CO2).
- With its high-quality finish, the cylinder pressure regulator is particularly suitable for professional use in industry, trade and DIY.

Technical Data
Model: | STAHLWERK pressure reducer ST-300 Pro |
Application: | Argon, CO2, inert gas, mixed gas |
Cylinder connection: | W21.8 x 1/14" |
Outlet connection: | G 1/4" |
Hose nozzle: | 6.3 mm |
Nominal flow rate: | 0 - 30 l/min (argon / CO2) |
Outlet pressure (max.): | 300 bar / 4350 psi |
High pressure gauge: | 0 - 400 bar, red marking at 300 bar |
Ambient temperature: | -20 to +60 °C |
Material: | Brass |
Seal material: | PTFE |
Standards: | DIN EN ISO 2503 Class 0 |
Weight: | 1.08 kg |
Scope of delivery
- 1 x STAHLWERK ST-300 Pro pressure reducer
- 1 x G 1/4" grommet

STAHLWERK Schweissgeräte Deutschland GmbH was founded in 1998 and offers original welding equipment as a manufacturer. We are your professional and reliable welding equipment supplier. Product safety carries the registered trademark STAHLWERK. The company responsible for product safety is STAHLWERK Schweissgeräte GmbH
located in Bornheim
Mainstraße 4
53332
Germany. For questions regarding product safety
please contact us at the electronic address info@stahlwerk-schweissgeraete.de or by phone at +49 228 24331713. The person responsible for product safety is Alexander Hamann.