真空負(fù)壓安全閥(TFA72W)
TFA72W適用于溫度≤200℃的負(fù)壓系統(tǒng),當(dāng)容器內(nèi)負(fù)壓超過允許值時(shí),該閥自動(dòng)開啟,吸入空氣;
當(dāng)容器內(nèi)負(fù)壓達(dá)到允許值時(shí),該閥自動(dòng)關(guān)閉,從而保護(hù)設(shè)備及系統(tǒng)。安裝在正常非負(fù)壓系統(tǒng),當(dāng)容器和系統(tǒng)的放散閥未打開,產(chǎn)生負(fù)壓時(shí),此閥自動(dòng)開啟。
當(dāng)容器內(nèi)負(fù)壓達(dá)到允許值時(shí),該閥自動(dòng)關(guān)閉,從而保護(hù)設(shè)備及系統(tǒng)。安裝在正常非負(fù)壓系統(tǒng),當(dāng)容器和系統(tǒng)的放散閥未打開,產(chǎn)生負(fù)壓時(shí),此閥自動(dòng)開啟。
主要性能規(guī)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 |