|
Parallel Slide Blowdown Valve Class 250 |
Fig. 491 |
 |
|
|
| |
 |
COMPONENT |
MATERIAL |
BODY |
BRONZE - CC491K (LG2) |
BONNET |
BRONZE - CC491K (LG2) |
SEAT |
NICKEL ALLOY |
DISCS |
NICKEL ALLOY |
STEM/RACK |
BRONZE |
PINION |
MANG BR |
GLAND |
BRONZE |
|
| |
|
|
| |
Technical Description of Standard Valves |
|
| |
|
|
| |
SIZE |
A |
B |
C |
D |
WEIGHT
kg |
mm |
ins |
mm |
ins |
mm |
ins |
mm |
ins |
mm |
ins |
40 |
1 1/2 |
194 |
7 5/8 |
113 |
4 7/16 |
73 |
2 7/8 |
203 |
8 |
16 |
50 |
2 |
216 |
8 1/2 |
130 |
5 1/8 |
83 |
3 1/4 |
229 |
9 |
25 |
65 |
2 1/2 |
229 |
9 |
168 |
6 5/8 |
83 |
3 1/4 |
267 |
10 1/2 |
32 |
80 |
3 |
254 |
10 |
194 |
7 5/8 |
86 |
3 3/8 |
279 |
11 |
45 |
|
| |
|
|
| |
Pressure Temperature Ratings |
|
| |
|
|
|
TEMP. °C
|
WORKING
PRESSURE BAR |
—10 |
120 |
40.0 |
|
- |
150 |
38.5 |
|
- |
170 |
35.5 |
|
- |
180 |
34.0 |
|
- |
186 |
32.8 |
|
- |
198 |
30.4 |
|
- |
200 |
30.0 |
|
- |
220 |
25.5 |
|
- |
250 |
19.5 |
|
- |
260 |
17.5 |
|
Cast bronze body and bonnet, rack and pinion, box key operated
(Fig. 497 can be supplied as an extra if required).
Flanged to ANSI. BS. or European Standards. |
| |
|
|
