jis-10k(pn16、pn10) |
fig.066n-铸铁缓冲式止回阀 | |
cast iron silent check valve |
renewable body & disc seat rings,leader disc,prevention water hammer. |
|
零件 part |
材质 material |
阀体 body |
cast iron (fc20) |
阀盘 disc |
cast brass(ybsc3)2"~3"
ductile iron(fcd45)4"~12" |
阀座 body seat |
cast brass (ybsc3) |
阀座环 seat ring |
nbr |
阀杆 stem |
brass (b16) |
弹簧 spring |
stainless steel (304) | |
|
尺寸 |
2 |
21/2 |
3 |
4 |
5 |
6 |
8 |
10 |
12 |
l |
157 |
200 |
210 |
220 |
258 |
280 |
280 |
315 |
370 |
d |
155 |
175 |
185 |
210 |
250 |
280 |
330 |
400 |
445 | |
最高使用压力 |
试验压力(水压) |
80°c以下之静流水 |
80°c以下之脉动水 |
阀体 |
阀座 |
14.0kg f/cm2 |
10.0kg f/cm2 |
21.1kg f/cm2 |
15.4kg f/cm2 | |