4 pipes GmbH
About
4 pipes GmbH, based in Nürnberg, Germany, manufactures and supplies pipeline accessories and protection systems for water, wastewater, gas, district heating, biogas, geothermal, oil, and industrial plant construction. The company's product portfolio covers the full lifecycle of pipeline protection and connection needs. Wall penetration systems (Wanddurchführungen) seal pipes at building entries and foundation penetrations to prevent water and gas ingress. Sliding shoes (Gleitkufen) and end sleeves (Endmanschetten) accommodate thermal expansion and protect pipe termination points. Flange gaskets and isolation kits (Flanschdichtungen and Flanschisolierungen) provide both sealing and electrical isolation at flanged connections to prevent stray current corrosion. Shrink products (Schrumpfprodukte) deliver heat-shrinkable sealing for pipe joints, transitions, and field repairs. Corrosion protection tapes (Korrosionsschutz-Bänder) wrap buried and submerged pipelines against external corrosion. Mechanical pipe protection (Mechanischer Rohrschutz) guards against physical damage from traffic loads and construction activity. Pipeline pigs (Molche) enable internal cleaning, inspection, and batch separation. Pipe supports (Rohrlagerung) provide structural cradling for above-ground and below-ground routing. The company also offers cable protection piping with telecommunication screw fittings and wall penetration products specifically for heat pump installations. 4 pipes supports engineers with downloadable calculation programs, assembly instructions, application videos, chemical resistance lists, and tender specification texts, and publishes an annual catalog and price list.
Key Products
Sealing systems for pipes passing through walls, foundations, and vaults, preventing water and gas ingress at building entry and exit points.
Support and protection components for pipes, accommodating thermal expansion and providing protection at pipe termination points.
Sealing gaskets and electrical isolation kits for flanged pipe connections, preventing both leakage and corrosion from stray electrical currents.
Heat-shrinkable sleeves and closures for sealing and insulating pipe joints, transitions, and repairs.
Self-adhesive or wrap-around tapes for external corrosion protection of buried and submerged pipelines.
Physical guards and protective coverings preventing mechanical damage to pipelines from external impacts, traffic loads, and construction activities.
Internal pipeline cleaning and inspection tools for removing deposits, inspecting wall condition, and separating product batches in pipelines.
Structural support and cradle systems for above-ground and below-ground pipeline installation and routing.
Pipe fittings for connections, transitions, and branch-offs in pipeline systems.
Pipe and pipeline marking systems for identification, safety, and regulatory compliance.
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