Testing (in Mpa) |
Sealing |
1.54 |
Intensity |
2.1 |
|
Max.Working Pressure (in fluid condition) |
Steam of 300 ¡æ |
1 |
Steam of 220 ¡æ |
1.2 |
Air and Gas |
-29 ¡æ to 66 ¡æ for oil & Pulsation water |
Non-shock water of ¡Ü 120 ¡æ |
1.4 |
|
Material of main parts |
Body,Cover |
Cast Steel ZG270-500 |
Stem |
1Cr12 |
Seat ring & Disc |
ZG2Cr13 |
Yoke Bushing |
Cast Bronze ZCuSn5Pb5Zn5 |
|
|
DN |
L |
H |
D0 |
D |
D1 |
b |
n-d |
50 |
120 |
246 |
160 |
155 |
120 |
16 |
4-19 |
65 |
130 |
279 |
200 |
175 |
140 |
18 |
4-19 |
80 |
140 |
297 |
200 |
185 |
150 |
18 |
8-19 |
100 |
160 |
338 |
250 |
210 |
175 |
18 |
8-19 |
125 |
180 |
384 |
280 |
250 |
210 |
20 |
8-23 |
150 |
205 |
428 |
315 |
280 |
240 |
22 |
8-23 |
200 |
230 |
490 |
355 |
330 |
290 |
22 |
12-23 |
250 |
290 |
627 |
400 |
400 |
355 |
24 |
12-25 |
300 |
320 |
695 |
450 |
445 |
400 |
24 |
16-25 |
|
