Nibco ' s new circuit balancing valves control and maintain a comfortable indoor climate while saving energy and reducing costs . these control valves ensure trouble - free operation and ease of maintenance 在节约能源和降低成本的同时，美国尼伯科的流量平衡阀控制调节和维持一个舒适的室内环境。这些控制阀保证无故障运行，并且维护保养简便易行。
