These pressure reducers can be used for inlet pressures between 40 and approx. 400 bar. They are not resettable. This means that these cannot be blown into the environment with an excess pressure on the secondary side. During operation of pressure reducers with high inlet pressures, the secondary side should be secured by a safety valve, as there, for example through leak in the valve, a higher pressure can exist than on the pressure reducer. Gases under high pressure are often used in welding technology. Especially for this we offer line pressure regulators, bottle pressure reducers acc. to DIN EN ISO 2503 (previously DIN EN 585) and flashback arrestors acc. to ISO 5175 (previously EN 730).