WSVX型调节阀的优越性能

译文：
WSVX型调节阀的优越性能表现在以下几个方面： 产品特点：采用不锈钢波纹管和石墨填料密封结构，管道中介质与外界隔绝；电动执行器采用一体化结构设计，具有自诊断功能，使用和调校方便。　　 1、WSVX型高温导热油专用三通电动调节阀由上海万迅仪表有限公司开发设计，是专为印染、化纤、化工等行业中的导油热温度控制系统配套使用而开发的产品。该产品在消化吸收国外著名公司先进产品技术基础上，采用了不锈钢波纹管和石墨填料双重密封结构，故能有效地使管道中介质与外界隔绝，提高了产品密封的安全和可靠性，同样也适用于剧毒、易挥发和易渗透等场合的介质调节。　 2、通过改变阀门的开度，同时将阀门开度的隔离信号反馈给控制系统，WSVX型高温导热油专用三通电动调节阀实现了对压力、温度、液位等参数的调解。 3、该产品配用WL智能型直行程电动执行器，体积小、规格全、重量轻、推力大、噪声小，无调整电位器，可靠性高、操作方便。控制器接受4~20毫安控制信号或开关控制信号，最高推力可达到16000牛，回差小于+/-1.0%。WL电动执行器采用一体化结构设计，具有自诊断功能，使用和调校方便。其电动执行机构可实现带断控制信号故障诊断、报警及保护功能，即在断信号时可使执行机构选择开、关、保持，或者选择在0~100%之间预置的任意位置； 4、电动执行机构还具有带阀门堵转故障判断、报警及保护功能。该设备采用了WAP4智能控制器，具有多项功能，方便修改参数。如当输入控制信号故障时，选择执行其输出的保护方式；当输入控制信号故障时，执行机构输出所需设定的位置；执行机构作用方式等。　 5、该电动调节阀具有调解精度高、调解性能好的特点，允许温差最高达到150度。调节阀阀体的阀芯和阀座采用了司太莱合金堆焊（1Cr18Ni9Ti4），填料则采用聚四乙烯。因此，除了阀盖处衬套具有导向作用外，阀芯侧面与阀座内表面也有导向作用，导向面积增大。波纹管密封性好，对移动的阀杆形成安全的密封，从而防止了液体外漏。

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原文：
WSVX-type control valves superior performance in the following areas: Features: The stainless steel corrugated tubes and graphite packing sealing structure, pipeline isolation dielectric; electric actuator with an integrated structural design, with self-diagnostic function, easy to use and adjust. 1, WSVX-type high-temperature heat-conducting oil special three electric control valve from Shanghai Instrument Co., Ltd. 10000 Xun development and design, is designed for printing 900X Emergency Shut-off valvesand dyeing, chemical fiber, chemical and other industries in the oil thermal conductivity of the temperature control system developed for supporting the use of the product. The product is well-known companies in the digestion and absorption of foreign advanced product technology, based on a stainless steel corrugated tubes and graphite packing a double seal structure, and it could be effective in the pipeline media and isolation, improved product safety and reliability of the seal, also apply to highly toxic, volatile and porous media such occasions regulation. 2, by changing the valve opening, while the isolation valve opening signal fed back to the control J145X diaphragm type electric remote control valves system, WSVX-type high-temperature heat-conducting oil special electric control valve to achieve the three pairs of pressure, temperature, liquid level parameters such as mediation. 3, the product is available with straight stroke WL intelligent electric actuator, small size, full-size, light weight, thrust, noise is small, no adjustment potentiometer, high reliability and easy operation. Controller to accept 4 to 20 mA control signal or switch control signal, the maximum thrust up to 16,000 cattle, hysteresis is less than + / -1.0%. WL electric actuator with an integrated structural design, with self-diagnostic function, easy to use and adjust. The electric actuator can be realized with a broken control signal fault diagnosis, alarm and protection function, that is off signals enable the implementation of institutional options open, closed, maintain, or select from 0 to 100% for any preset position; 4, actuator also has a valve block with a switch to fault diagnosis, alarm and protection. The device uses WAP4 intelligent controller has a number of functions to facilitate the modified parameters. For example, when input control signal failure, choose JD745X diaphragm type multifunctional pump control valueto implement the output of the protection methods; when the input control signal failure, the executing agency needed to set the output location; the role of executing agency methods. 5, the electric control valve with a high accuracy mediation, conciliation good performance characteristics, allowing temperature up to 150 degrees. Regulating valve body of the valve core and valve seat using the Division Chatterley alloy welding (1Cr18Ni9Ti4), then the use of PTFE packing. Thus, in addition to valve cover has a guiding role at bush, the spool side and the seat is also the inner surface of the guiding role of orientation larger areas. Bellows seal is good, right movement to form the safety valve stem seal, thus preventing fluid leakage.