DMZ73手(shou)動對夾式污水刀形閘閥特點 
◎閥門高度低、重量輕，節省材料。 
◎安裝空間小，適用性強。 
◎采用浮動密封，性(xing)能好，是環保型(xing)刀形閘閥 

鍛鋼閘閥大多為大連式縮徑設計，與同口徑的鑄鋼閘閥相比流量要稍小，但承受的壓力與溫度范圍要比鑄鋼閥門要高，密封性能也要比鑄鋼閘閥要好許多，壽命更長，介質流動方向同其他閘閥一樣不受限制。

平板閘(zha)閥,手動對夾式(shi)污水刀形閘(zha)閥維(wei)護(hu)時，也要注意電(dian)(dian)動(dong)(dong)(dong)頭及其(qi)傳動(dong)(dong)(dong)機(ji)(ji)構中進水問題(ti)。尤其(qi)在雨季(ji)滲入的雨水。一是(shi)使傳動(dong)(dong)(dong)機(ji)(ji)構或(huo)傳動(dong)(dong)(dong)軸套(tao)生(sheng)銹，二是(shi)冬(dong)季(ji)凍(dong)結。造成電(dian)(dian)動(dong)(dong)(dong)閥操作時扭(niu)矩過大，損壞(huai)傳動(dong)(dong)(dong)部(bu)件會使電(dian)(dian)機(ji)(ji)空載(zai)或(huo)超(chao)扭(niu)矩保(bao)護(hu)跳開無(wu)法實(shi)現電(dian)(dian)動(dong)(dong)(dong)操作。傳動(dong)(dong)(dong)部(bu)件損壞(huai)，手(shou)動(dong)(dong)(dong)操作也無(wu)法進行。在超(chao)扭(niu)矩保(bao)護(hu)動(dong)(dong)(dong)作后，手(shou)動(dong)(dong)(dong)操作也同樣無(wu)法開關，如強行操作，將損壞(huai)內部(bu)合金部(bu)件。