| |
尺寸 - 重量 - 数量
DIMENSIONS—WEIGHTS—QUANTITIES |
通径
Size |
尺寸
Dimensions |
G-920-W |
| A |
B |
C |
D |
英寸
In. |
毫米
mm. |
英寸
In. |
毫米
mm. |
英寸
In. |
毫米
mm. |
英寸
In. |
毫米
mm. |
英寸
In. |
毫米
mm. |
磅
Lbs. |
公斤
Kg. |
| 2 |
50 |
4.66 |
111 |
4.13 |
105 |
2.38 |
60 |
2.00 |
51 |
3.30 |
1.49 |
| 21/2 |
65 |
4.91 |
125 |
4.88 |
124 |
2.88 |
73 |
2.41 |
61 |
4.50 |
2.04 |
| 3 |
80 |
5.31 |
135 |
5.38 |
137 |
3.50 |
89 |
2.94 |
75 |
7.30 |
3.31 |
| 4 |
100 |
5.38 |
137 |
6.00 |
152 |
4.50 |
114 |
3.91 |
99 |
8.60 |
3.90 |
| 5 |
125 |
5.72 |
145 |
7.06 |
179 |
5.56 |
141 |
4.89 |
124 |
13.00 |
5.90 |
| 6 |
150 |
6.00 |
152 |
8.13 |
206 |
6.63 |
168 |
5.92 |
150 |
18.00 |
8.17 |
| 8 |
200 |
6.72 |
171 |
10.03 |
255 |
8.63 |
219 |
7.91 |
201 |
30.00 |
13.6 |
| 10 |
250 |
7.78 |
198 |
12.38 |
314 |
10.75 |
273 |
10.00 |
254 |
56.00 |
25.4 |
| 12 |
300 |
8.19 |
208 |
14.38 |
365 |
12.75 |
324 |
11.94 |
303 |
81.80 |
36.7 |
槽状连接尺寸符合ANSI/AWWA规范C606表4标准（切割槽尺寸）。
Groove dimensions conform to ANSI/AWWA specification
C606 Table 4 (Cut Groove Dimensions) |
|
注意：双阀瓣止回阀水平安装，或在流向朝上时垂直安装。
NOTE: Twin Disc Check Valves can be installed
horizontally or in the vertical position with flow up.
警告：对于水平应用场合，阀门必须配置垂直阀瓣铰销，以保证正常工作。
CAUTION: For horizontal flow applications, the
valve must be installed with disc hinge pin in the vertical position to
insure proper operation.
警告：
WARNING:
- 不能用作蒸汽阀。
These are not to be used as steam valves
- 阀门不能安装在往复式空气压缩机附近。
Valves are not to be used near a reciprocating
air compressor
- 安装位置距泵出口或弯管下游处最少应该有5倍管道直径的长度的位置。极端情况下可能需要安装流向矫直装置。
Install 5 pipe diameters minimum downstream from
pump discharge or elbows to avoid flow turbulence. Flow straighteners
may be required in extreme cases.
注意：在泵出口处，首选止回阀是管内弹簧负载，配置杠杆和重量旋启式结构，或杠杆和弹簧旋启式结构。
NOTE: On pump discharge, the preferred check valves
are in-line spring loaded, swing design with lever and weight or lever
and spring. |
