FLSmidth Dome Valve

Key Benefits Opens fully, allowing material to flow freely Pressure tight sealing using an inflatable MöLLER® seal Cuts through a static material column to close Highly wear resistant, giving long service life Control system with interface to DCS or PLC Air-tight pressure valve: Free flow when open; tight seal when closed When you want to stop material flow into a pressure vessel or through a pneumatic conveying pipe, you need a valve that works instantly and completely. The MöLLER® Dome Valve is a simple installation that can cut through a static material column. Pressure tight closing when it’s closed. Free flowing material movement when it’s open. What we offer A pressure valve that delivers – with quality that lasts Wear is one of the biggest issues with valves. It’s no wonder. They operate in intense environments and we ask a lot from them. But a worn or degraded valve can’t deliver the performance you need. Leaking valves create all kinds of issues for your process – not to mention the safety risk. We took all this into account when we designed the MöLLER Dome Valve, which is designed for high performance over a long service life. It’s a simple installation with a sturdy, modular design that enables easy servicing and replacement of wear parts. High-grade wear protection gives you plenty of life between maintenance stops and in the meantime the valve delivers excellent performance. The spherical cap slices through a static material column and seals absolutely to guarantee full closure. And when it’s open, the closing segment retreats completely to allow material to flow freely. The MöLLER Dome Valve provides pressure-tight closing of pressure vessels at the inlet after filling and is also used as shut-off device at the pressure vessel outlet – the area subject to the highest pressure load. MöLLER valves are also used as 2-way diverter valves in conveying pipes. Key Benefits A pneumatic valve designed for high-wear applications Number one requirement for your pressure valve is a seal that works – absolutely, every time. The MöLLER Dome Valve uses an inflatable MöLLER® seal and spherical closing segment to create a seal that is pressure tight up to pe = 8 bar. It works pneumatically, acting quickly to cut through a column of static material and close the pipe completely. It’s designed to work with material temperatures up to 275˚C for materials such as cement, fly ash and gypsum. These fine-grained materials can be hard on your system, which is why we’ve made the housing from spheroidal graphite cast iron and designed high-grade wear resistance into the spherical closing segment. We want you to have minimum maintenance requirements and maximum uptime. When maintenance is needed, the valve is designed for easy servicing with a modular structure that enables swift replacement of wear parts. When the valve is open the spherical segment retreats completely to give you 100% free flow area. This ensures uninterrupted material transport with no friction affecting the smooth flow of material. Follows the German pressure vessel code TRB 801 No. 45 Follows the EU pressure vessel guideline PED CE label Available in DN 100/150/200/250/300 Product Features MöLLER Dome Valve: Long-life pneumatic valve The design of the MöLLER® valve aims to achieve the maximum performance with the easiest operation and service. It begins with a simple installation comprising only one main air connection and one common terminal strip for all electric components. Ease of servicing is provided by the modular design of the MöLLER valve, so you spend the least amount of time replacing wear parts. The sturdy design and the high-grade wear protection give you long service life. The solenoid valves, pressure switches and accessories required for the operation of the MöLLER valve are installed in a metal housing. LEDs outside the housing indicate the position and pressure for inflatable sealing. Function tests can be performed via the integrated key switch. The process control system handles the MöLLER valve like an actuating drive. Potential free contacts are available for connection with a DSC or PLC. When opened, the MöLLER valve frees the complete valve passage. Apart from the advantage of free material flow, this also ensures there is no installation for material to build up or wear. The valve is so sturdy that the spherical cap can cut through a full material flow without problems. It is guaranteed to reliably seal a pressurized pressure vessel thanks to the inflatable MöLLER gasket. An integrated control system activates all open and close functions and monitors the gasket. In order to actuate the pneumatic rotary drive, compressed air of pe = 3 bar min. is required and the control air pressure, which also activates the inflatable MöLLER gasket, must always be 1 bar higher than the pressure vessel pressure. The MöLLER valve must always be installed with the shaft positioned horizontally.