Boll & Kirch Filterbau GmbH

Boll & Kirch Filterbau GmbH, operating as BOLLFILTER, is a globally active filtration specialist headquartered in Kerpen, Germany, with over 75 years of experience designing and manufacturing industrial filter systems for liquids and gases. The company holds DIN ISO 9001, ISO 14001, ISO 45001, and ISO 50001 certifications and is recognized by all major classification societies, serving maritime, energy, and industrial sectors worldwide. BOLLFILTER's core product lineup includes automatic backwash filters for continuous self-cleaning operation, duplex filters enabling uninterrupted filtration during element changes, and compact simplex filters for single-line applications. Their FineFilter range encompasses tubular and flatsheet plant configurations alongside reverse osmosis systems for desalination and pure water production. On the membrane side, BOLLFILTER offers both plate membranes and tubular membranes for microfiltration, ultrafiltration, and nanofiltration duties. A comprehensive spare parts catalog covers basket filters, filter candles, multimantle elements, ring elements, star-pleated elements, and particle/coalescence elements, plus the proprietary FouleX coating for extended element life. Monitoring and control accessories include differential pressure indicators, the digital DDAT differential pressure transmitter, and electronic control units. For filter maintenance, BOLLFILTER supplies the High-Pressure Cleaning Unit Type 5.04 and Ultrasonic Cleaning Unit Type 5.05, along with BOLL CLEAN cleaning agent. Applications span ballast water management, drinking water treatment, sewage treatment, power generation, ship fuel and lube oil systems, data center HVAC, and steel works filtration.