![](/statics/images/"/skin/images/tel.jpg/statics/images/")
![](/statics/images/"/skin/images/prolist4.png/statics/images/")
全國(guó)服務(wù)熱線F2-250/400型主安全閥和衝量安全閥GA49H-16（DN40/50）配套(tào)適用(yòng)於(yú)電(diàn)站(zhàn)汽輪機的管線上 。當管線壓力(lì)超(chāo)過允許值時，衝量安全閥先開啓 ，主閥隨(suí)之開啓；壓力(lì)降至安全值時 ，衝量關閉，主安全閥同步關閉，對管線和汽輪機起(qǐ)到安全保護作用(yòng) 。該閥適用(yòng)溫度：≤425°C
![](/statics/images/"/uploads/image/202405/14143452_29538.jpg/statics/images/")
-
天(tiān)正閥門有(yǒu)限公(gōng)司專業(yè)生產天(tiān)正安全閥
天(tiān)正閥門集團是提(tí)供設(shè)計(jì)定制研發的低溫安全閥廠家
-
![中國(guó)天(tiān)正閥門有(yǒu)限公(gōng)司](/statics/images/"/skin/images/24h.jpg/statics/images/")
![天(tiān)正安全閥](/statics/images/"/skin/images/ztel.jpg/statics/images/")
18658784578
![天(tiān)正閥門集團天(tiān)正閥門集團](/statics/images/"/skin/images/icon.png/statics/images/" "低溫安全閥廠家天(tiān)正閥門集團"){kind=icon}
![](/statics/images/"/uploads/image/202205/10145003_56379.jpg/statics/images/"/)
![](/statics/images/"/uploads/image/202205/10142552_87864.jpg/statics/images/"/)
![](/statics/images/"/uploads/image/202205/10145003_56379.jpg/statics/images/")