阀门材料温度极限表：
阀门材料的极限温度是指阀门能正常工作的极限温度，阀门材料的极限温度对于生产安全至关重要，阀门材料的温度极限，以下附表详细介绍。
1 有些规程（例如：ASME，BPVC，SECTION 1）将上述材料的额定温度限制在406oF以下。
Some codes (i.e., ASME BPVC, SECTION 1) limit the rating temperatures of the indicated material to 406oF.
2 丁腈橡胶阀瓣阀门的温度限制在180oF以下。
Buna-N disc valves limited to 180oF temperatures.
3 TFE阀瓣阀门的温度限制在450oF以下。
TFE disc valves limite to 450oF temperatures.
4 焊接连接端口阀门温度限制在不影响焊接连接端口的强度范围内。
Solder end valves are limited by temperatures which affect the strength of the solder joint.
‡ 本表引自MSS-SP80
Tables from MSS-SP80 |
尼伯科灰铸铁和球墨铸铁阀门的压力／温度额定值
PRESSURE/TEMPERATURE RATINGS FOR NIBCO GRAY IRON AND DUCTILE IRON VALVES |
| |
灰铁
GRAY IRON |
球墨铸铁
DUCTILE IRON |
温度oF
1), 2)
Temperature
Degrees oF
1), 2) |
125磅级
200水、油、气
Class 125
200 WOG |
250磅级
500水、油、气
Class 250
500 WOG |
150磅级
Class 150 |
| 2" - 12" |
14" - 24" |
30" - 48" |
2" - 12" |
14" - 24" |
2" - 12" |
| -20 to 100 |
200 |
150 |
150 |
500 |
300 |
250 |
| 150 |
200 |
150 |
-- |
500 |
300 |
243 |
| 200 |
190 |
135 |
115 |
460 |
280 |
235 |
| 225 |
180 |
130 |
100 |
440 |
270 |
-- |
| 250 |
175 |
125 |
85 |
415 |
260 |
225 |
| 275 |
170 |
120 |
65 |
395 |
250 |
-- |
| 300 |
165 |
110 |
50 |
375 |
240 |
215 |
| 325 |
155 |
105 |
-- |
355 |
230 |
-- |
| 350 |
150 |
100 |
-- |
335 |
220 |
210 |
| 375 |
145 |
-- |
-- |
315 |
210 |
-- |
| 400 |
140 |
-- |
-- |
290 |
200 |
200 |
| 425 |
130 |
-- |
-- |
270 |
-- |
-- |
| *450 |
125 |
-- |
-- |
250 |
-- |
185 |
| 500 |
-- |
-- |
-- |
-- |
-- |
170 |
| 550 |
-- |
-- |
-- |
-- |
-- |
155 |
| 600 |
-- |
-- |
-- |
-- |
-- |
140 |
| 650 |
-- |
-- |
-- |
-- |
-- |
|
在连接铜管和焊接端口阀门时要核对压力／温度额定值†
ADJUSTED PRESSURE/TEMPERATURE RATINGS FOR JOINTS MADE OF COPPER TUBE AND SOLDER END VALVES† |
焊接连接
SOLDER USED
IN JOINTS |
工作温度
华氏oF
SERVICE
TEMPERATURE
DEGREES oF |
水，包括其它非腐蚀性液体和气体
WATER, Including other noncorrosive liquids and gases |
饱和气体
SATURATED STEAM |
阀门公称通径
Valve Sizes |
（psig） |
1/4英寸至1英寸
1/4" through 1" |
1/4英寸至2英寸
1/4" through 2" |
2 1/2英寸至2英寸
2 1/2" through 2" |
1/4英寸至4英寸
1/4" through 4" |
50 -- 50
锡 -- 铅
(ASTM B-32)
50 - A等级合金
50 -- 50
Tin -- Lead
(ASTM B-32)
Alloy Grade 50 - A |
100 |
200 |
175 |
160 |
-- |
| 150 |
150 |
125 |
100 |
-- |
| 200 |
100 |
90 |
75 |
-- |
| 250 |
85 |
75 |
50 |
15* |
95 -- 5
锡 -- 锑
95 -- 5
Tin -- Antimony |
100 |
500 |
400 |
300 |
-- |
| 150 |
400 |
350 |
275 |
-- |
| 200 |
300 |
250 |
200 |
-- |
| 250 |
200 |
175 |
150 |
15* |
* 这个压力取决于饱和蒸气在表中的最高温度。
† 本表根据美国国家标准局公布的“建造材料和结构报告BMS58和BMS83“编制而成。
* This Pressure is determined by the temperature of saturated steam at the maximum temperature shown.
† Tables from National Bureau of Standards publications "Building Materials and Structures Reports BMS58 and BMS83" |
青铜额定压力阀门的压力／温度额定值‡
PRESSURE/TEMPERATURE RATINGS FOR BRONZE PRESSURE RATED VALVES‡ |
| |
压力 -- PSI
PRESSURE -- PSI |
压力等级
PRESS. CLASS |
1252, 3 |
150 |
300 |
连接端口
END CONN. |
螺纹
THD. |
螺纹
THD. |
螺纹
THD. |
温度
TEMP. |
材料
MATERIAL |
温度 oF
(DEG. oF) |
ASTM B-62 |
ASTM B-61 |
-20至150
-20 to 150 |
200 |
300 |
600 |
| 200 |
185 |
270 |
560 |
| 250 |
170 |
240 |
525 |
| 300 |
155 |
210 |
490 |
| 350 |
140 |
180 |
450 |
| 400 |
-- |
-- |
410 |
| 406 |
125 |
150 |
-- |
| 450 |
1201 |
1451 |
375 |
| 500 |
-- |
-- |
340 |
| 550 |
-- |
-- |
300 |
|
