1986-1990
| 1986 | In-house design of a rotary lobe pump in the FL series with unique benefits and patented solutions. The aim was to create optimum pump technology to ease the maintenance of pumps. |
| 1986 | The first major patent is granted for the screw-on rotor tip. |
| 1988 | Initial launch of FL pumps on the regional "pump technology"-market. |
| 1988 | In-house design of a unique mechanical seal customised for the rotary lobe pump. |
| 1990 | Beginning of a nationwide marketing campaign for the rotary lobe pump for general industrial use, as well as in water and sewage technology. |