1. Electro-Magnetic Relief Valve, called as the power control valve is used as final safety device to prevent over-pressure of the high pressure boiler for the power plant High level requirements are made on it\'s operation, seal ability, stability, and durability.
2. The valve body has sufficient rigidity and exhaust port is provided at both sides.
3. Valve Poping action by electro-Magnetic operation
4. As for the disc material, Inconel 750 which has high strength against high temperature, excellent in erosion-proof, and having sufficient experience is employed for both the main valve and pilot valve discs. 
5. Stellite No.6 is employed for the seat.