static hydraulic balancing valve
... 室温调控 indoor temperature controlling 静态水力平衡阀 static hydraulic balancing valve 自力式压差控制阀 self-operate differential pressure control valve ...
hand-regulated hydraulic-balancing-valve
正常运行工况normal operation condition 静态水力平衡阀hand-regulated hydraulic-balancing-valve 热桥thermal bridge ..