VALVE DEVICE FOR AMMONIA REFRIGERANT REFRIGERATING CYCLE DEVICE, AND AMMONIA REFRIGERANT REFRIGERATING CYCLE DEVICE

摘要

PPROBLEM TO BE SOLVED: To prevent generation of erosive phenomenon by utilizing advantages of a metallic valve housing, in a valve device for an ammonia refrigerant refrigerating cycle device. PSOLUTION: The valve housing 11 is composed of a metallic material, and parts exposed to an area where the variation of a flow speed on a flow line of refrigerant flow inside of a valve device becomes more than an erosion generation value, for example, surfaces of a valve seat member 18 and a valve element 30 are composed of a non-electrically conductive material. PCOPYRIGHT: (C)2008,JPO&INPIT