Description:
TFA72W-10P/10R |
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。 |
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 containerreaches the allowable value, the valve will close automatically so as to protect the equipmentand 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 | |
