压力平衡式倒装油密封旋塞阀的关闭件是一个塞子绕阀体中心线旋转90度达到启闭目的的一种阀门，在管道上主要起到切断作用。根据介质和阀门密封面的耐冲蚀性，有时也可以用来作为节流用 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

进口压力平衡式倒装油密封旋塞阀规范说明/Description of specifications

设计制造标准：API599、API6D

结构长度标准∶ASMEB16.10

连接法兰标准∶ASME B16.5

压力温度等级：ASMEB16.34 

试验检验标准∶API598、API6D

规格尺寸：1”～12”

公称压力：CL150-900LB

适应温度：-29～180～300℃

阀体材质：Body A352LCC，ASTMA216-WCB，ASTMA351-CF8M，ASTMA352-LCB

进口压力平衡式倒装油密封旋塞阀性能特点 Performance characteristics

转动90度就能开关，启闭迅速，操作方便 It can be opened and closed by turning 90 degrees, which is fast and easy to operate

阀门没有空腔给介质积聚 The valve has no cavity to accumulate medium

倒装压力平衡的结构，开关动作轻 Inverted pressure balance structure, light switching action

阀体和密封面间设有油槽，可随时通过油嘴向阀座注入密封油脂，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

结构特点 Structural characteristics

油润滑式圆柱形旋塞阀：圆柱形旋塞阀密封方法有：①使用密封剂；②使用旋塞膨胀；③使用O形密封圈；④使用偏心旋塞楔入阀座密封四种方法，注润滑剂的圆柱形旋塞阀，密封剂是从阀杆注入的，然后进入旋塞密封面产生密封。该产品适合全开全关腐蚀性介质。但是不宜用于节流用，且注入润滑剂较麻烦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

油封式圆锥形旋塞阀：采用强制润滑，使得旋塞和阀体密封面间形成一层油膜。密封性能好，广泛用于输油，输气管道 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

压力平衡式旋塞阀：倒锥形的旋塞和阀体密封面间的密封是依靠密封脂和介质本身压力将旋塞向上压紧来实现的。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