壓力平衡式倒裝油密封旋塞閥的關閉件是一個塞子繞閥體中心線旋轉90度達到啟閉目的的一種閥門，在管道上主要起到切斷作用。根據介質和閥門密封面的耐沖蝕性，有時也可以用來作為節流用 RETZ The obturator of the pressure balanced inverted oil seal plug valve is a valve whose plug rotates 90 degrees around the center line of the valve body to open and close. It mainly plays a cutting role in the pipeline. According to the erosion resistance of the medium and valve sealing surface, it can also be used for throttling sometimes

進口壓力平衡式倒裝油密封旋塞閥規范說明/Description of specifications

設計制造標準：API599、API6D

結構長度標準∶ASMEB16.10

連接法蘭標準∶ASME B16.5

壓力溫度等級：ASMEB16.34 

試驗檢驗標準∶API598、API6D

規格尺寸：1”～12”

公稱壓力：CL150-900LB

適應溫度：-29～180～300℃

閥體材質：Body A352LCC，ASTMA216-WCB，ASTMA351-CF8M，ASTMA352-LCB

進口壓力平衡式倒裝油密封旋塞閥性能特點 Performance characteristics

轉動90度就能開關，啟閉迅速，操作方便 It can be opened and closed by turning 90 degrees, which is fast and easy to operate

閥門沒有空腔給介質積聚 The valve has no cavity to accumulate medium

倒裝壓力平衡的結構，開關動作輕 Inverted pressure balance structure, light switching action

閥體和密封面間設有油槽，可隨時通過油嘴向閥座注入密封油脂，增加密封性能 There is an oil groove between the valve body and the sealing surface, which can inject sealing grease into the valve seat at any time through the nozzle to increase the sealing performance

結構特點 Structural characteristics

油潤滑式圓柱形旋塞閥：圓柱形旋塞閥密封方法有：①使用密封劑；②使用旋塞膨脹；③使用O形密封圈；④使用偏心旋塞楔入閥座密封四種方法，注潤滑劑的圓柱形旋塞閥，密封劑是從閥桿注入的，然后進入旋塞密封面產生密封。該產品適合全開全關腐蝕性介質。但是不宜用于節流用，且注入潤滑劑較麻煩retz品牌  Oil lubricated cylindrical plug valve: the sealing methods of cylindrical plug valve include: ① using sealant; ② Expansion with cock; ③ Use O-ring; ④ There are four methods to seal the valve seat with eccentric plug wedging. For cylindrical plug valves filled with lubricant, sealant is injected from the valve stem and then enters the sealing surface of the plug to produce a seal. This product is suitable for fully open and fully close corrosive media. But it is not suitable for throttling, and it is troublesome to inject lubricant

油封式圓錐形旋塞閥：采用強制潤滑，使得旋塞和閥體密封面間形成一層油膜。密封性能好，廣泛用于輸油，輸氣管道 Oil sealed conical plug valve: forced lubrication is adopted to form an oil film between the plug and the sealing surface of the valve body. Good sealing performance, widely used in oil and gas pipelines

壓力平衡式旋塞閥：倒錐形的旋塞和閥體密封面間的密封是依靠密封脂和介質本身壓力將旋塞向上壓緊來實現的。密封可靠，操作省力Pressure balanced plug valve: the sealing between the inverted cone plug and the valve body sealing surface is realized by pressing the plug upward with the pressure of the sealing grease and the medium itself. Reliable sealing and easy operation