进口气动Y型疏水阀 高温高压 气动薄膜疏水阀 美国RETZ瑞茨

　　品牌：RETZ瑞茨/我们一直致力于流体控制和测控领域的持续创新，始于2005……

　　气动Y型疏水阀在机组启动阶段，排出各段蒸汽管道中的汽水混合物，直到汽机正常运行。另外在汽机出现故障或甩负荷时，按程序将疏水阀打开，将管路中蒸汽、水排至疏水扩容器，保证系统安全Pneumatic drain valve, pneumatic membrane Y-type drain valve, discharges thesteam water mixture in each section of the steam pipeline during the unitstartup stage until the steam turbine operates normally. In addition, in caseof steam turbine failure or load rejection, open the drain valve according tothe program, and discharge the steam and water in the pipeline to the drainflash tank to ensure system safety

　　进口气动Y型疏水阀产品详情 Product details

　　气动Y型疏水阀接近直线的流通设计，减小流阻，二次节流原理，减少冲蚀，提高寿命。阀芯、阀座采用整体硬质合金，关闭内漏≤VI级，可拆卸中腔密封设计，杜绝外漏，检修方便等特点，还可在易燃，易爆场合使用，根据控制系统或调节仪表的信号，切断或开启阀门，从而实现对被控参数的使用要求。因此它广泛应用于火电厂等行业的远程控制 retz品牌 The pneumaticY-type drain valve has a nearly linear flow design, which reduces the flowresistance and the secondary throttling principle, reduces erosion and improvesthe service life. The valve core and valve seat are made of integral cementedcarbide, with closed inner leakage ≤ Class VI, removable middle cavity sealingdesign, preventing external leakage, convenient maintenance and other features.They can also be used in flammable and explosive situations. According to thesignal of the control system or regulating instrument, the valve can be cut offor opened, thus realizing the use requirements of the controlled parameters.Therefore, it is widely used in remote control of thermal power plants andother industries

　　进口气动Y型疏水阀特性 Characteristicsof inlet pneumatic steam trap

　　1、阀体为锻造Y型，流通阻力小，Cv值大 The valve bodyis forged Y-shaped, with small flow resistance and large Cv value

　　2、阀芯上带有节流片，有效保护密封面，延长阀门使用寿命 Thevalve core is equipped with a throttling plate to effectively protect thesealing surface and extend the service life of the valve

　　3、阀芯阀座密封面经过特殊工艺处理和加工，防汽蚀、耐冲刷 Thesealing surface of the valve core and valve seat is treated and processed byspecial process to prevent cavitation and erosion

　　4、阀芯上加工有两道引导环，阀杆受力均衡，动作灵活，不发生卡塞现象 Twoguide rings are machined on the valve core, and the valve rod has balancedforce, flexible action and no jamming

　　5、阀杆填料全部为进口柔性石墨填料，化学性和柔韧性好，摩擦小，使用寿命长 Thevalve rod packing is all imported high-quality flexible graphite packing, withgood chemical property and flexibility, small friction and long service life(4-5 years on average)

　　6、开关速度快，一般3~5秒，有效保护系统安全，大大的减少密封面受介质冲刷时间 Theswitch speed is fast, generally 3~5 seconds, which effectively protects thesystem safety and greatly reduces the time for the sealing surface to bescoured by the medium

　　7、阀盖上有散热片充分散热，保障气动执行结构和电磁阀等不会受到高温而失效。中腔垫片为夹丝高目柔性石墨垫，比一般柔性石墨垫具有更好的密封性和可靠性 Thevalve cover is equipped with a radiator to fully dissipate heat, so as toensure that the pneumatic actuator and solenoid valve will not fail due to hightemperature. The middle cavity gasket is a high mesh flexible graphite gasketwith wire, which has better sealing and reliability than the general flexiblegraphite gasket

　　进口气动Y型疏水阀性能参数Performanceparameter

　　设计依据DesignBasis

　　设计制造Designand manufacture：ASMEB16.34 JB/T3595

　　检验与试验Inspectionand testing：MSSSP-16 JB/T3595

　　连接端Connectionend

　　承插焊Socketwelding：ASMEB16.11

　　对接焊Buttwelding：ASMEB16.25

　　法兰连接Flangeconnection：ASMEB16.5

　　设计等级Designlevel：特殊级、限制级、标准级Speciallevel，restrictedlevel，standardlevel

　　公称通径Nominaldiameter：3/4'~4'

　　公称压力Nominalpressure：ANSI150LB~4500LB

　　适用温度Applicabletemperature：20℃~610℃

　　执行机构Actuator：气动（可选电动）pneumatic（optional electric）

　　泄漏Leakage：零泄漏zero leakage

　　阀体类型：Y型45°角 Body type:Y type 45°angle

　　阀体材质：

　　阀盖：基本型、散热型 Valvecover: basic type, heat dissipation type

　　内件：整体式：整体堆焊式阀座 Trim:integral: integral surfacing valve seat

　　更换式：阀座、阀瓣、阀盖快速更换，维护性能好，半小时实现内件更新 Replacementtype: quick replacement of valve seat, disc and bonnet, good maintenanceperformance, and internal parts renewal in half an hour

　　填料：夹不锈钢丝柔性石墨Packing: flexible graphite with stainless steel wire

　　流量特性：快开两种执行机构供选择：Flowcharacteristics: two kinds of quick-opening actuators for selection

　　气动薄膜式执行机构（气动多弹簧及单弹簧薄膜式执行机构，顶装和侧装两种手轮供选择）活塞式执行机构Pneumatic diaphragm actuator (pneumatic multi-spring and single-springdiaphragm actuator, top-mounted and side-mounted handwheels are optional)Piston actuator