Initially, the new cast version Type 441 could be offered and ordered in the nominal inlet diameters DN 250 and DN 300. Now, since the end of March, there has also been a green light for offers for the largest nominal inlet diameter DN 400.

Orders can be accepted from July 2022. Finally, the first Type 441 safety valves in the DN 400 nominal inlet diameter can be delivered in the new cast design in the autumn of this year.

Just like the two smaller nominal inlet diameters DN 250 and DN 300, these valves will be manufactured on the new XXL production island at LESER in Hohenwestedt. This means that delivery times of only eight weeks can be realised for LESER's large valves in the future.