- TFA72W真空负压安全阀,压力管道保护装置
详细信息
TFA72W真空负压安全阀是一种安全保护用阀,它的启闭件受外力作用下处于常闭状态,当设备或管道内的介质压力升高,超过规定值时自动开启,通过向系统外排放介质来防止管道或设备内介质压力超过规定数值。安全阀属于自动阀类,主要用于锅炉、压力容器和管道上,控制压力不超过规定值,对人身安全和设备运行起重要保护作用。
TFA72W-10P/10RTFA72W适用于温度≤200℃的负压系统,当容器内负压超过允许值时,该阀自动开启,吸入空气;
当容器内负压达到允许值时,该阀自动关闭,从而保护设备及系统。安装在正常非负压系统,当容器和系统的放散阀未打开,产生负压时,此阀自动开启。tive pressure system with temperature 200 . When the netative pressure in the container exceeds the allowable value, the valve will open automatically and absorbs air When the netative pressure in the container reaches the allowable value, the valve will close automatically so as to protect the equipment and the system. It is to be installed in normal non-negative pressure systems. When the discharge valve of the container and system has not opened, which produces the negative pressure, this valve will open TFA72W is applicable in nega-automatically. 主要性能规范 NO. Name of part TFA72W-P Materials TFA72W-R Materials 1 Body ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti 2 Seat 1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti 3 Adjusting ring 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 4 Bonnet ZG1Cr18Ni9Ti 1Cr18Ni9Ti 5 Stem 1Cr18Ni9Ti 1Cr18Ni12Mo2Ti 6 Spring 50CrVA 50CrVA Coated Teflon
Working temperature 200 Suitable medium TFA72W-10P Nitric acid etc. medium TFA72W-10R Acetic acid etc. medium
主要零部件材料Explanation of materials for main parts Nominal diameter
DN(mm)Dimensions D D1 D2 Z- d b f1 H 15 95 65 45 4-14 14 2 110 20 105 75 55 4-14 16 2 130 25 115 85 65 4-14 16 2 150 32 140 100 78 4-18 18 2 180 40 150 110 85 4-18 18 3 200 50 165 125 100 4-18 20 3 221 80 200 160 135 4-18 22 3 245 100 220 180 155 8-18 22 3 253 125 250 210 185 8-18 24 3 280 150 285 240 210 8-23 24 3 329 200 340 295 265 8-23 26 3 377 250 395 350 320 12-23 28 3 440 -