PECM Issue 57 2022 | Page 56

Breather valve for overpressure and vacuum safety

HEALTH & SAFETY TANK PROTECTION

REMBE
Breather valve for overpressure and vacuum safety
In all industries in which sensitive process media are used , the highest demands are placed on maintaining the quality , shelf life and product purity of the processed liquid or solid substances . This is often the case in the food industry and in the chemical and pharmaceutical sectors .
The ELEVENT breather valve from REMBE protects vessels with low design pressures against overpressure and vacuum in a pressure range of 2 – 200 mbarg . This makes it the optimum solution for lowpressure 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 equalisation , 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 of up to 1x10-6 mbar x l / sec . 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 .
The ELEVENT ’ s modular design makes it possible to manufacture the individual parts of the breather valve from different materials , such as stainless steel or Hastelloy , and to use special coatings , such as Halal , to meet the challenges of the respective processes . The use of housing clips not only allows the individual components and gaskets to be selected in accordance with the relevant process conditions , such as extreme temperatures , pressures and process media – but also ensures they can be replaced without a problem . Maintenance and cleaning work can also be carried out quickly and easily .
For substances that require high product purity , oxidation is one of the greatest dangers . If oxygen or gases from the atmosphere penetrate inside the vessel , there is a risk of significant economic damage for the company concerned . To prevent this , the -KLI version of the ELEVENT features an inerting connection that introduces the required amount of nitrogen to prevent subsequent reactions with the medium .
All in all , REMBE ’ s ELEVENT represents a safe solution for plants in a wide variety of fields . Indeed , numerous market-leading plant manufacturers worldwide have already chosen to rely on the high quality and efficiency of the ELEVENT breather valve .
ELEVENT breather valve
The ELEVENT breather valve from REMBE protects vessels with low design pressures against overpressure and vacuum in a pressure range of 2 – 200 mbarg .
For further information , please visit www . rembe . de
56 PECM Issue 57