Overpressure protection for low-pressure tanks
The Elevent breather valve (photo) protects vessels with low design pressures against overpressure and vacuum in a pressure range of 2 to 200 mbarg. This makes it appropriate for low-pressure vessels inside storage tanks, dryers and other vessels in the chemical, pharmaceutical and food industries. For example, Elevent is ideal for use in dryers in which free-flowing process media, such as cocoa, raw tablet materials or teas, are processed under vacuum. If the vacuum pressure inside the vessel begins to drop, the valve opens and thus ensures targeted pressure equalization, which is of immense importance both for the stability of the dryer, as well as the quality of the sensitive substances inside. Controlled maintenance of the pressure level is achieved via a very low leakage rate. This prevents both emissions of volatile gases or other environmentally harmful substances, as well as the formation of explosive mixtures or a potentially dangerous ingress of air. Hall 9.1 Booth C4 — Rembe GmbH Safety + Control, Brilon, Germany