Water preliminary test

PU MEMBRANE 450 is a one component, easy to apply, specially formulated polyurethane based, elastic, crack bridging membrane. It cures to form a highly elastic, seamless, waterproof coating with excellent crack bridging properties. Its performance is maintained even at low temperatures.

Waterproof enclosures with protection grades IP67 or IP68 for outdoor use are not automatically sealed against vapour and humid air. To avoid negative pressure, high humidity and condensation inside the enclosure a continuous Ventilation and pressure equilibrium is necessary. This function can be achieved by using a venting element made by Jacob. Features: - Continuous ventilation and adaptaion on the inner pressure - Hydrophobic and oleophobic PES- membrane - Body from stainless steel 1.4305 - Theoretical air flow through usable surface up to 75 l/h at Delta-p = 0,07 bar - Water entry pressure >= 0,83 bar (dynamic WEP, 30 seconds) - Temperature range -40°C / +100°C - Protection grade IP66 / IP68 - 0,6 bar (60 min.) / IP69

Body, flange, screw and shaft: stainless steel Couplings: stainless steel (nylon as an option with code -A) Membrane and valves: made of a hydrocarbon-resistant elastomer (Neoprene as an option with code -A) Lever: zinc-plated steel with a rubber handle, 1 metre in length

We realize customer-specific membrane switch and advise you comprehensively on equipment requirements and technical features. On the basis of your sample, your specification or technical drawing, we will create an individual offer and support you during the project. We advise you on the selection of suitable materials and offer cost reduction options. We offer you an active co-operation in the development and construction and give suggestions for improvement. For an offer we need: •technical drawing, sketch or pattern •technical specifications, equipment extras •required amount Please send following informations to: info@nh-technology.de One of our engineering experts will contact you asap.