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| 第89页 Page 89 |
实用旋启和弹簧止回阀（2） UTILITY SWING & SPRING CHECK VALVES (2) |
 美国斯毕尔公司 |
实用旋启式止回阀
实用弹簧止回阀
尺寸 |
| 公称通径 Nominal Size |
参考尺寸（英寸，± 1/16英寸） Dimensions Reference (Inches, ± 1/16) |
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| A | B | C | D | |||
| 承插 Socket |
螺纹/SR螺纹 Threaded/SR Threaded |
旋启式 Swing |
弹簧 Spring |
|||
| DN15 1/2 |
13/8 | 219/32 | 25/8 | 43/32 | 21/8 | 25/8 |
| DN20 3/4 |
13/8 | 25/32 | 21/16 | 41/16 | 21/8 | 25/8 |
| DN25 1 |
111/16 | 25/16 | 215/16 | 49/16 | 25/8 | 25/8 |
| DN32 11/4 |
21/16 | 215/16 | 35/8 | 51/2 | 33/8 | 33/8 |
| DN40 11/2 |
27/16 | 3 | 311/16 | 55/8 | 33/8 | 33/8 |
| DN50 2 |
3 | 35/8 | 43/8 | 63/8 | 41/4 | 41/4 |
| DN65 21/2 |
39/16 | 43/8 | 51/4 | 77/8 | 51/8 | 51/8 |
| DN80 3 |
45/16 | 411/16 | 55/8 | 87/16 | 53/4 | 53/4 |
| DN100 4 |
51/4 | 6 | 71/16 | 101/16 | 63/8 | 63/8 |
| DN150 6 |
711/16 | 81/2 | 115/16 | 149/16 | 91/4 | 无 N/A |
| DN200 8 |
97/16 | 113/16 | 无 N/A |
191/4 | 1115/16 | 无 N/A |
| 一般安装信息：实用旋启式止回阀设计用于水平管道安装，但是也可以安装在垂直朝上的位置。安装止回阀必须使其阀门流向箭头与流体流向相一致。不要将阀门朝下安装。流速不应该超过每秒5英尺。最小开启压力不小于0.5
psi。 General Installation Information: Utility Swing check valves are designed for horizontal installations, but may be installed in up-flow only vertical position. Check valves MUST be installed with the valves FLOW arrow pointing in the direction of the flow. Do not install valve upside down. Flow velocity should not exceed 5ft./sec. Minimum opening pressure less than 0.5 psi. |
| 温度压力等级 Temperature Pressure Rating |
| 系统工作温度oF
(oC) System Operating TemperatureoF (oC) |
100 (38) |
110 (43) |
120 (49) |
130 (54) |
140 (60) |
150 (66) |
160 (71) |
170 (77) |
180 (82) |
190 (88) |
200 (93) |
210 (99) |
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| 阀门压力 等级 Valve Pressure Rating psi (MPa) |
DN15~DN200 1/2" - 8" |
PVC | 150 (1.03) |
135 (0.93) |
110 (0.76) |
75 (0.52) |
50 (0.34) |
-0- (-0-) |
-0- (-0-) |
-0- (-0-) |
-0- (-0-) |
-0- (-0-) |
-0- (-0-) |
-0- (-0-) |
| 150 (1.03) |
140 (0.97) |
130 (0.90) |
120 (0.83) |
110 (0.76) |
100 (0.70) |
90 (0.62) |
80 (0.55) |
70 (0.48) |
60 (0.41) |
50 (0.34) |
-0- (-0-) |
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