真空負(fù)壓安全閥產(chǎn)品用途:
1、用于負(fù)壓系統(tǒng):當(dāng)負(fù)壓容器系統(tǒng)內(nèi)負(fù)壓超過(guò)允許值時(shí),該閥自動(dòng)開(kāi)啟,吸入空氣。當(dāng)負(fù)壓降低到規(guī)定值時(shí),閥門(mén)自動(dòng)關(guān)閉,從而保證設(shè)備容器及系統(tǒng)的安全運(yùn)行;
2、用于正常非負(fù)壓系統(tǒng):各種腐蝕性介質(zhì)容器,如吸收塔、蒸餾塔、貯槽、罐等,當(dāng)通入蒸汽清洗后,如放散閥未打開(kāi),蒸汽冷凝,產(chǎn)生負(fù)壓,安裝設(shè)備即確保設(shè)備設(shè)備安全。
真空負(fù)壓安全閥主要性能規(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 |
真空負(fù)壓安全閥外形尺寸和連接尺寸:
公稱(chēng) 通徑 DN(mm) |
連接尺寸 |
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 |