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Parallel Slide Blowdown Valve Class 250 |
Fig. M2442 |
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 |
| COMPONENT |
MATERIAL |
| BODY |
BRONZE - CC491K (LG2) |
| BONNET |
BRONZE - CC491K (LG2) |
| SEAT |
NICKEL ALLOY |
| DISCS |
NICKEL ALLOY |
| STEM/RACK |
NICKEL BRONZE |
| PINION |
ALUMINIUM BRONZE |
| GLAND |
BRONZE |
|
| |
Technical Description of Standard Valves |
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|
|
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SIZE |
A |
B |
C |
WEIGHT |
mm |
ins |
mm |
ins |
mm |
ins |
mm |
ins |
kg |
40 |
1 1/2 |
184 |
7 1/4 |
124 |
4 7/8 |
194 |
7 5/8 |
12 |
50 |
2 |
210 |
8 1/4 |
149 |
5 7/8 |
235 |
9 1/4 |
18 |
|
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|
|
| |
Pressure Temperature Ratings |
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|
|
 |
STANDARD FLANGE BS 4504 PN25 |
SATURATED STEAM PRESSURE |
lbf/in 2 |
|
Up to 272 |
18.8 |
|
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Cast bronze body and bonnet, rack and pinion key operated
(Fig. 243/246 can be supplied as an extra if required).
Flanged to ANSI, BS, or European standards. |
