Kaczmarek Malewo Sp.J.
About
Kaczmarek Malewo Spółka Komandytowa, operating from Malewo near Gostyń, Poland since 1985, is the country's largest family-owned manufacturer of plastic pipe systems and installation components for water, sewer, gas, and drainage infrastructure. The company's flagship K2-Kan external sewer system is a structured-wall polypropylene pipe available from DN 150 to DN 1000mm with stiffness classes SN 4 through SN 16, featuring dual-wall construction with a smooth inner surface (roughness coefficient K=0.00011mm) that is 65% lighter than monolithic equivalents and 15–20 times lighter than concrete. The K2-Kan XXL line extends into large-diameter territory from DN 800 to 3000mm in PE-HD or PP for gravity sewers, drainage, protective conduits, culverts, manholes, tanks, pumping stations, and trenchless rehabilitation. Their DIAMIR inspection chamber system ranges from 315 to 1000mm in polypropylene and PVC, manufactured by injection molding with riser pipes produced via extrusion, supporting heights up to 6 meters in configurations for non-entry inspection chambers, walk-in manholes, and drainage settling tanks. Additional product lines include PE-HD and PE 100-RC pressure pipe systems for water and gas distribution, PVC-U pressure and drainage systems, the Fonica PP-HT low-noise internal sewage system, Hydrobox stormwater infiltration boxes, roof gutters and soffits, and protective connection sleeves. All products carry TÜV Rheinland certification and the Polish Product designation. Kaczmarek distributes through over 200 partners, holds ISO 9001 and ISO 14001 certifications, and co-founded the Polish Association of Plastic Pipe and Fitting Manufacturers (PRiK). The company estimates a service life exceeding 100 years for its plastic pipe systems.
Key Products
Structured-wall polypropylene pipe system (DN 150-1000mm, SN 4-16) for sanitary, rainwater, combined, and industrial gravity sewer networks, installable at depths of 0.8-8m and under roads with SLW 60 loads.
Large-diameter PE-HD/PP structured-wall pipe system (DN 800-3000mm, SN 1-32) for sewers, drainage, protective conduits, culverts, manholes, tanks, pumping stations, and trenchless renovation applications.
Complete plastic manhole systems with PP spigots (DN 160, DN 200), D400-rated street inlets, and reinforced concrete relief rings for sewer network access and stormwater drainage.
Modular plastic infiltration boxes for stormwater management, allowing rainwater to percolate into the ground and relieve sewer systems.
High-density polyethylene pressure pipe systems for water supply and gas distribution networks, resistant to cracking and suitable for trenchless installation.
Rigid PVC pressure pipe system for water distribution and industrial process applications.
Rigid PVC drainage pipe system for subsurface drainage, groundwater management, and agricultural applications.
Polypropylene internal building drainage system with acoustic insulation for quiet operation in residential and commercial buildings.
Plastic rainwater collection gutters and soffit systems for building roof drainage.
PP and PS sleeves for connecting sewer pipes and creating sealed pipe penetrations through building partitions.
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