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ZL47F自力式流(liu)量(liang)(liang)控制(zhi)閥是一種(zhong)自動恒定壓(ya)差的(de)(de)水力工況平衡用(yong)閥，應用(yong)于集(ji)中(zhong)供(gong)(gong)熱(re)、 空調(diao)等(deng)水系(xi)(xi)(xi)統(tong)中(zhong)，有利(li)于被控系(xi)(xi)(xi)統(tong)各用(yong)戶(hu)和(he)各末端裝置的(de)(de)自主調(diao)節，尤(you)其適用(yong)于分戶(hu)計(ji)量(liang)(liang)供(gong)(gong)暖系(xi)(xi)(xi)統(tong)和(he)變流(liu)量(liang)(liang)空調(diao)系(xi)(xi)(xi)統(tong)。