锻钢高压法兰球阀优点及特点
Advantages and Characteristics of Forged Steel High Pressure Flange Ball Valve
1、锻钢高压法兰球阀的手动部分可采用钢板压制的手柄或不锈钢铸造的手柄。手柄设有限位结构，在阀门开启、关闭的位置设定限位，当锻钢高压法兰球阀使用在关键装置上时，限位块上设有锁孔可锁定开关位置避免误操作。手柄上有明显地开和关标识。
1. The manual part of forged steel high pressure flange ball valve can be made of steel plate pressed handle or stainless steel cast handle. The handle is equipped with a limit structure to set limits at the opening and closing positions of the valve. When the forged steel high-pressure flange ball valve is used on key devices, the limit block is equipped with a lock hole to lock the switch position to avoid misoperation. The handle has obvious opening and closing marks.
2、锻钢高压法兰球阀的阀杆采用A182F（1Cr13）整体锻造并调制处理，硬度达到HB220～250。阀杆通过平键或花键或方契与手柄连接，通用性强，拆装方便。阀杆设有防吹出结构。
2. The valve stem of forged steel HP flange ball valve is integrally forged with A182F (1Cr13) and modulated, with hardness of HB220~250. The valve rod is connected with the handle through a flat key, spline or square wedge, which has strong versatility and is convenient for disassembly and assembly. The valve rod is equipped with anti blow out structure.
3、锻钢高压法兰球阀的填料选用编结、柔性石墨密封圈或四氟烯密封圈，使得阀杆在一定的润滑情况下实现可靠的密封。
3. The packing of forged steel high pressure flange ball valve shall be braided, flexible graphite seal ring or tetrafluoroethylene seal ring, so that the valve rod can be reliably sealed under certain lubrication conditions.
4、根据需要，锻钢高压法兰球阀可设计成防静电结构，在球体与阀杆、阀杆与壳体之间设置导电弹簧，避免静电打火点燃易燃物质，确保系统。
4. As required, forged steel high pressure flange ball valve can be designed into an anti-static structure. A conductive spring is set between the ball and the valve stem, and between the valve stem and the housing to avoid static electricity igniting flammable substances and ensure system safety.
5、密封副型式多样。根据不同工况可选用软密封、硬密封、防火阀座等结构；DN150以下为浮球型式锻钢高压法兰球阀，DN200以下为固定球型式。
5. Various types of sealing pairs. Soft seal, hard seal, fireproof valve seat and other structures can be selected according to different working conditions; The ball valve below DN150 is a floating ball type forged steel high pressure flange ball valve, and the ball valve below DN200 is a fixed ball valve.
6、锻钢高压法兰球阀阀座处可设置辅助密封结构，在阀座和阀杆部位加装注脂阀，紧急情况下可暂时密封，并可根据需要加长阀杆以适宜埋地铺设得场所。
6. Auxiliary sealing structure can be set at the valve seat of forged steel high pressure flange ball valve, and grease injection valve can be added at the valve seat and valve stem, which can be temporarily sealed in case of emergency, and the valve stem can be lengthened as required to suit the place of buried laying.
锻钢高压法兰球阀是主要用于石油、天然气的长距离管线输送和城市煤气管道系统的重要部分。锻钢高压法兰球阀有长输管线用阀的独有的特征，就是在设计上很好的考虑了其能承受管道应力的能力。由于管道运输的特殊性，需要锻钢高压法兰球阀具有很好的性、可靠性和较长的使用寿命，所以在锻钢高压法兰球阀的结构设计上需要特别注意，也需要经过特有的产业标准。拧开排除装置可检查阀座是否发生泄漏，也可排放中腔滞留物减少介质对阀单方面上的污染。一般来说锻钢高压法兰球阀的使用材料必须具有很好的耐腐蚀性，并且能保证其密封性能稳定。较密封圈损伤的情况下，锻钢高压法兰球阀也应该具有一定的密封性，这样才可以在出现泄漏时的紧急救护作用。锻钢高压法兰球阀除了耐腐蚀性还需要很好的耐硫化能力，在防火、防静电等性能上，也一定是非常优良。
Forged steel high pressure flange ball valve is mainly used for long-distance pipeline transportation of oil and natural gas and an important part of urban gas pipeline system. Forged steel high pressure flange ball valve has the unique feature of valves for long-distance pipeline, which is that its ability to withstand pipeline stress is well considered in design. Due to the particularity of pipeline transportation, forged steel high pressure flange ball valve is required to have good safety, reliability and long service life. Therefore, special attention should be paid to the structural design of forged steel high pressure flange ball valve, and special industrial standards should also be passed. Unscrew the discharge device to check whether the valve seat leaks, or discharge the residues in the middle chamber to reduce the pollution of the medium on the valve side. Generally speaking, the materials used for forged steel high pressure flange ball valves must have good corrosion resistance and ensure stable sealing performance. When the seal ring is damaged, the forged steel high pressure flange ball valve should also have a certain degree of tightness, so that it can be used for emergency rescue in case of leakage. In addition to corrosion resistance, forged steel high pressure flange ball valve also needs good sulfur resistance, which must be very good in fire protection, anti-static and other performance.
The above is a detailed introduction to Shanghai Lianggong Valve, and I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with professional services http://www.jnlgvf.com
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