控制阀参数说明：
阀内件特点： 套筒导向型
平衡内件结构
迷宫式阀笼结构
平衡密封环结构（常温）
金属密封环结构（高温）
阀体类型： 直通式
角式
Z型阀体
阀盖形式： 标准型
散热型
低温型
流量特性： 等百分比
线性
快开
口径范围： DN25-400(1”-16”)
压力等级： PN15、25、42Mpa（ANSI 900、1500、2500LB）
泄漏等级： ASME B16.104 Ⅴ（标准型金属阀座）
管道连接方式： 法兰式
对焊式
适用温度范围： -30° ～ 260°（平衡密封环结构）
-196° ～ 550°（金属密封环结构）
执行机构类型： 气动薄膜式执行机构
气动活塞式执行机构
电动执行机构
Series balanced labyrinth control valve adopts the labyrinth cage and balanced plug design. The labyrinth cage is composed of cylindrical discs with many coaxially distributed labyrinths. According to different technological parameters of the media, different labyrinth specifications and piling layers are designed to form the cage and the cage divides the whole flow channel into several tiny circuitous or step flow channels, forcing the fluids to continuously change the flow direction and flowing area and gradually reducing the pressure of fluids, so as to prevent the occurrence of flash evaporation and cavitation and prolong the service life of the trim. The balanced cage plug is adopted. The closely fit plug and seat ensure very low leakage. The trim is suitable for service conditions under which blocked flow will easily be produced and cavitation will be caused.
Parameters of control valves：
Trim features： cage guided
balanced trim structure
labyrinth cage structure
balanced seal ring structure（normal temperature）
metal seal ring structure (high temperature)
Body type： straight-through type
angle type
Z type body
Bonnet type： standard type
heat dissipation type
cryogenic type
Flow characteristic： equal percentage
linear
quick open
Size： DN25-400(1”-16”)
Pressure class： PN15、25、42Mpa（ANSI 900、1500、2500LB）
Leakage class： ASME B16.104 Ⅴ（standard type metal seat）
Pipe connection type： flange type
butt welding type
Applicable temperature range： -30CC° ～ 260CC°（balanced seal ring structure）
-196CC° ～ 550CC°（metal seal ring structure）
Actuator type： pneumatic diaphragm actuator
pneumatic piston actuator
electric actuator