Boller GmbH & Co. KG
About
Boller GmbH & Co. KG, headquartered in Neunkirchen (Siegerland), Germany, traces its roots to the 2003 acquisition of Diehl Umwelttechnik, a firm originally established in 1962. The company has since grown into a full-range supplier (Vollsortimenter) of pipe fittings, wall penetrations, expansion joints, and shaft equipment for water and wastewater infrastructure, serving nominal sizes from DN 15 through DN 2200. Boller processes carbon steels (C22.8, S235JR) and a range of stainless grades including 1.4301, 1.4539, 1.4462 (Duplex), and 1.4841 (heat-resistant), holding certifications to AD 2000 HP0, ISO 3834-3, and DIN EN ISO 9606-1. Beyond its core piping portfolio, Boller manufactures spherical, jacket, lens, and cylinder floats for liquid-level control; a line of powder-coated and stainless steel street furniture (waste bins, benches, tables, bollards, and dog bag dispensers); and offers contract surface technology services including fluidized-bed sintering (Resicoat/Rilsan), electrostatic powder coating per GSK guidelines, and stainless steel pickling. The company also produces cryogenic vessels and special constructions for industrial gas applications, operating from a facility that has expanded to roughly 2,000 square meters of production space across multiple halls.
Key Products
Steel and stainless steel pipe fittings including F-stück, FF-stück, Q-stück, N-stück, T-stück, TT-stück, and Hosenrohr (wye) configurations for water/wastewater networks.
Sealed pipe penetration systems (DW10–DW70) for building and structure entries in water and wastewater applications.
Access manholes and cleaning boxes for pipeline inspection and maintenance.
Wellhead assemblies, rising mains, ventilation shafts, and ventilation hoods for well and shaft installations.
Inlet nozzles, overflows, pipe supports (BC, RV, RU), check valves, inlet screens, feed pipes, and extraction pipes.
DD, DDK, and DDES series expansion joints for accommodating thermal and mechanical movement in pipelines.
DF1–DF4, DDK-F, and DV series pass-through fittings and setting pieces for wall and floor penetrations.
DRGL and DRGF articulated pipe joints for flexible pipeline connections.
Spherical, jacket, lens, and cylinder floats for level measurement and control in tanks and reservoirs.
Custom cryogenic vessels and high-pressure piping for liquefied gas applications.
Fluidized-bed sintering (Resicoat/Rilsan) and electrostatic polyester powder coating per GSK guidelines.
Pickling services for stainless steel components to restore corrosion resistance after fabrication.
Powder-coated and stainless steel waste bins, park benches, tables, ashtrays, dog bag dispensers, planters, bollards, and ground sleeves for municipalities and public spaces.
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