Walraven operates three divisions. BIS Fixing Systems for heating systems, sanitary installations, sprinkler pipes, air ducts, cooling systems, cable troughs and much more.BIS Fire Protection Systems for smoke proof and fire resistant sealing of pipe apertures and recessed light fittings, as well as products for the fire retardant fixing of pipes and BIS Sanitary Systems Concealed Pre Wall systems, Alpro inspection hatches and products for sanitary installations.

CMS Anti-Vibration have solutions for all types of anti-vibration projects. From residential, industrial and commercial new build, through refurbishments. CMS anti-vibration portfolio of products include complete structural isolation to spring mounts and dampeners, from Isolation Hangers to Inertia Bases.

Flamco develops, produces and sells a wide range of high quality products used in central heating installations, sanitary installations and cooling installations. These include expansion vessels, safety valves, water heaters and accessories. All group companies operate in accordance with international quality standards, including ISO 9001 and ISO 9002.

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