● 开关无磨擦:偏心设计消除了与阀座的摩擦,解决了传统球阀、 闸阀、 旋塞阀阀座的磨损问题。
● 单阀座设计:静态单阀座,能保证下游密封零泄漏,避免了双阀座内腔压力升高的问题。
● 自清洁功能:当阀芯偏离阀座时,介质可沿密封面360度流动,将密封面上的杂质冲洗干净。
● 低扭矩操作:因为密封摩擦被消除了。阀门密封面无摩擦,转动轻便。
● 耐磨硬密封面:阀芯密封面堆焊硬质合金, 能满足在非常苛刻的介质场合下的密封性。
● 双偏心设计:整合了众多阀门设计的优点, 克服了传统球阀在深冷、固料磨损、高低温切换、高频次开关、双向关断等苛刻工况的多种缺陷,以满足苛刻工况最高可靠性和安全性的要求。
● 全通道设计:开放式流道,无空腔死区,无阀腔堆积,无需专门泄压排放。
主体材质:碳钢、不锈钢、镍合金
公称通径:NPS 2"~36"、DN 50~900
压力范围:Class 150~1500、PN 10~250
工作温度:-196°C~+200℃
驱动方式:手动、电动、气动等
应用范围:石油、化工、治金、轻工、电站、城建供水、低温工况以及输油、输气、天然等长输管线
◎ Design Standard:
◎ Pressure Temperature Rate:
◎ Face to Face:
◎ Flange Standard:
◎ Welding:
◎ Fire Safe:
◎ Pressure Test:
There is an oil groove between the valve body and the sealing surface of the pressure-balanced plug valve, and sealing grease can be injected into the valve seat through the oil nozzle at any time to improve the sealing performance. The material of the parts and the size of the flange can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.
The quality of forged steel parts is higher than that of cast steel parts, and they can withstand large impact forces. Their plasticity, toughness, and other mechanical properties are higher than those of cast steel parts. The diameter of forged steel stop valves is generally not more than DN80, and most of them are reduced-diameter designs. Compared with cast steel stop valves of the same diameter, the flow rate is slightly lower, but the pressure and temperature range they can withstand are higher than those of cast steel valves, and their sealing performance is much better than that of cast steel stop valves, and their service life is longer. Like other stop valves, they are subject to the restrictions of the flow direction of the medium. Forged steel stop valves can be divided into straight-through stop valves (type stop valves) and direct-flow stop valves (Y-type stop valves) according to installation positions.
It is mainly used for storage and transportation of oil and gas in the chemical industry, metallurgy, paper making, food processing, shipbuilding and other industries, used to open or close, and with pneumatic and electrical devices can also achieve the long-distance operation, to ensure personal safety.