ZYC型自力式壓差控制閥，是一種利用介質自身的壓力變化進行自我控制而保持流經該被控系統介質壓差不變的節能產品。適用于供暖方式采用雙管系統的壓差控制，保證系統的壓差基本不變，減低噪音，平衡阻力，消除熱網的水力失調。

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