Offered Dome Valve is unique in its ability to open and close with a tight pressure seal in pneumatic conveying systems for abrasive materials. This valve incorporates a unique seat sealing method or known for high wear resistance, reliability, durability and a long service life. Provided valve has the power to open and close with a constricting pressure seal in pneumatic conveying systems for rough materials. Further, provided valve come in various specifications and feature a complete bore material flow. Apart from this, provided Dome Valve is designed to entrap particles at the seat, to prevent their movement under the influence of a pressure differential, and therefore overcome the main cause of wear in valves handling bulk materials or dirty gases containing particulate.