The milestones of almost 50 years of company and product development
1962
Foundation of the company in Cologne.
Takeover of the chief distributor S.A. Scapi, Vilvoorde/Belgium.
Market launch of GG25 — GL strainers made from grey cast iron
1964
Relocation to Bensberg-Refrath, Germany.
1967
Market launch of the innovative lockable screw joints with emptying function for use on radiators.
1971
Market launch of the innovative PVC C pipes for heating systems (with TÜV certificate).
1973
Market launch of GS-C 25 – GL strainers made from cast steel.
1976
Presentation of the premium line (GL heating valves).
1980
Market launch of GL strainers made from stainless steel.
1985
Market launch of the GL-Safe – soft-seated, no-maintenance valves.
1986
Market launch of GGG 40 – GL strainers made from spheroidal graphite cast iron.
Relocation to present address.
1989
Establishment of a branch in Lille/France.
Establishment of a branch in Veendam/Netherlands.
Market launch of the innovative GL KFE ball valve with blocking device.
1993
Relocation of the Dutch subsidiary to Groningen.
2000
Market launch of the ASA FL strainers 150 lbs and 300 lbs.
2006
Production begins on special screens for the GL strainers.
2008
Martina Ludemann is the third generation to join the company.
Filmeaco becomes the new distribution partner in Great Britain.
