真空负压安全阀(TFA72W)

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  • 添加日期 2012-12-20

产品说明

真空负压安全阀(TFA72W)
TFA72W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。
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