手動插板閥

手(shou)動插(cha)板(ban)(ban)(ban)閥(fa)(fa)它是一(yi)(yi)種閘(zha)板(ban)(ban)(ban)與(yu)閥(fa)(fa)座始終(zhong)緊密接觸密封的(de)(de)(de)閥(fa)(fa)門，其(qi)原理是閘(zha)板(ban)(ban)(ban)上(shang)開有一(yi)(yi)個通(tong)徑(jing)(jing)(jing)大小(xiao)的(de)(de)(de)圓口，通(tong)過(guo)閘(zha)板(ban)(ban)(ban)啟(qi)閉(bi)使得(de)閘(zha)板(ban)(ban)(ban)上(shang)圓口跟(gen)通(tong)徑(jing)(jing)(jing)做   脫離和(he)相(xiang)吻合的(de)(de)(de)動作。此閥(fa)(fa)門的(de)(de)(de)優點(dian)在于閥(fa)(fa)體通(tong)徑(jing)(jing)(jing)無凹槽，介質不會卡(ka)阻堵塞，并且具有全(quan)通(tong)徑(jing)(jing)(jing)流通(tong)特(te)(te)性，其(qi)密封結構可以分軟密封、硬(ying)密封結構。穿透式刀閘(zha)閥(fa)(fa)是具有構造，工藝(yi)性好，結構緊湊(cou)等特(te)(te)點(dian)，密封閥(fa)(fa)座為活動結構設計，有防磨(mo)損和(he)自動補償(chang)功能，因而(er)壽命   長(chang)。在關閉(bi)和(he)開啟(qi)過(guo)程中閥(fa)(fa)座跟(gen)閘(zha)板(ban)(ban)(ban)一(yi)(yi)直緊貼運(yun)動，使得(de)閥(fa)(fa)門啟(qi)閉(bi)力穩定，并且具有切斷介質等特(te)(te)點(dian)。 

手動插(cha)板(ban)(ban)(ban)閥(fa)(fa)使(shi)用中注意事項及其(qi)特(te)點: 插(cha)板(ban)(ban)(ban)閥(fa)(fa)的(de)(de)(de)啟閉(bi)件(jian)是(shi)閘(zha)板(ban)(ban)(ban)，閘(zha)板(ban)(ban)(ban)的(de)(de)(de)運動方(fang)向與流體方(fang)向相垂直，插(cha)板(ban)(ban)(ban)閥(fa)(fa)只能作全開(kai)和(he)(he)全關，不能作調(diao)節和(he)(he)節流。閘(zha)板(ban)(ban)(ban)有(you)兩個密(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)，常(chang)用的(de)(de)(de)模式(shi)閘(zha)板(ban)(ban)(ban)閥(fa)(fa)的(de)(de)(de)兩個密(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)形成(cheng)楔形、楔形角(jiao)隨閥(fa)(fa)門參數而(er)異，通常(chang)為50，楔式(shi)插(cha)板(ban)(ban)(ban)閥(fa)(fa)的(de)(de)(de)閘(zha)板(ban)(ban)(ban)可(ke)以(yi)(yi)做(zuo)(zuo)成(cheng)一個整體，叫做(zuo)(zuo)剛性(xing)閘(zha)板(ban)(ban)(ban)；也可(ke)以(yi)(yi)做(zuo)(zuo)成(cheng)能產生微量變形的(de)(de)(de)閘(zha)板(ban)(ban)(ban)，以(yi)(yi)其(qi)工(gong)藝性(xing)，彌補密(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)角(jiao)度在加工(gong)過(guo)程中產生的(de)(de)(de)偏差，這(zhe)(zhe)種閘(zha)板(ban)(ban)(ban)叫做(zuo)(zuo)彈(dan)性(xing)閘(zha)板(ban)(ban)(ban) 插(cha)板(ban)(ban)(ban)閥(fa)(fa)關閉(bi)時，密(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)可(ke)以(yi)(yi)只依靠介質壓(ya)(ya)力(li)來密(mi)(mi)(mi)封(feng)(feng)(feng)，即依靠介質壓(ya)(ya)力(li)將閘(zha)板(ban)(ban)(ban)的(de)(de)(de)密(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)壓(ya)(ya)向另一側的(de)(de)(de)閥(fa)(fa)座來密(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)的(de)(de)(de)密(mi)(mi)(mi)封(feng)(feng)(feng)，這(zhe)(zhe)就(jiu)是(shi)自(zi)密(mi)(mi)(mi)封(feng)(feng)(feng).大部(bu)分插(cha)板(ban)(ban)(ban)閥(fa)(fa)是(shi)采用強(qiang)制(zhi)密(mi)(mi)(mi)封(feng)(feng)(feng)的(de)(de)(de)，即閥(fa)(fa)門關閉(bi)時，要依靠外力(li)強(qiang)行將閘(zha)板(ban)(ban)(ban)壓(ya)(ya)向閥(fa)(fa)座，以(yi)(yi)密(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)的(de)(de)(de)密(mi)(mi)(mi)封(feng)(feng)(feng)性(xing)。

河北手動插板閥　山東手動插板閥