法蘭旋啟式止回閥介紹：

旋啟式(shi)止回閥(fa)選(xuan)用(yong)(yong)(yong)于(yu)公稱壓(ya)力PN1.6～6.4MPa,工作溫(wen)(wen)度(du)-29～550℃的石油、化工、火力電(dian)站等各(ge)種(zhong)(zhong)工況的管(guan)路上(shang)。適用(yong)(yong)(yong)介質為：水(shui)、油品、蒸(zheng)汽(qi)等。選(xuan)材(cai)(cai)考究，符合國內、外(wai)相關標準(zhun)，材(cai)(cai)料(liao)(liao)的全面質量高。密(mi)封(feng)副(fu)配對先進合理(li)，閥(fa)瓣(ban)、閥(fa)座密(mi)封(feng)面采(cai)用(yong)(yong)(yong)鐵基合金或(huo)司太(tai)立（Stellite）鈷基硬質合金堆(dui)焊面成(cheng)，耐磨、耐高溫(wen)(wen)、耐腐蝕、抗擦傷性能(neng)好，使用(yong)(yong)(yong)壽命長。產(chan)品按(an)標準(zhun)GB/T12235設(she)計(ji)制(zhi)造。可(ke)采(cai)用(yong)(yong)(yong)各(ge)種(zhong)(zhong)配管(guan)法蘭標準(zhun)及(ji)法蘭密(mi)封(feng)型式(shi)，滿足各(ge)種(zhong)(zhong)工程(cheng)需(xu)要(yao)及(ji)用(yong)(yong)(yong)戶(hu)要(yao)求(qiu)(qiu)。閥(fa)體材(cai)(cai)料(liao)(liao)品種(zhong)(zhong)齊全，墊片可(ke)根據實際工況或(huo)用(yong)(yong)(yong)戶(hu)要(yao)求(qiu)(qiu)合理(li)選(xuan)配，能(neng)適用(yong)(yong)(yong)于(yu)各(ge)種(zhong)(zhong)壓(ya)力、溫(wen)(wen)度(du)及(ji)介質工況。可(ke)按(an)用(yong)(yong)(yong)戶(hu)要(yao)求(qiu)(qiu)設(she)計(ji)制(zhi)造不同結構形(xing)式(shi)和連接形(xing)式(shi)的止回閥(fa)，為各(ge)種(zhong)(zhong)設(she)備配套使用(yong)(yong)(yong)。 

法蘭旋啟式止回閥產品特(te)點：
1、閥門中(zhong)口(kou)采(cai)用壓力(li)自緊式密封(feng)結構，介質壓力(li)越高，密封(feng)性能越好；
2、密封面(mian)采(cai)用堆焊司太立(li)鈷(gu)基硬質合(he)金，具有高硬度、抗(kang)腐蝕、抗(kang)氣(qi)蝕、優良的抗(kang)擦傷性能，閥門使(shi)用壽(shou)命長；
3、直(zhi)通(tong)式，介質流阻小(xiao)；
4、閥門開啟和關(guan)閉是靠介質的(de)作用力來實(shi)現的(de)，介質回流時(shi)自動快速關(guan)閉；
5、維(wei)護及檢修(xiu)方便、快捷。