| 国标波纹管法兰截止阀 |
| 产品类别：波纹管阀门 |
| Bb Os & Y型结构 |
|
制造标准：GB12235 |
结构长度：GB12221 |
|
对焊口标准：GB12224 |
试验标准：GB13927 |
| Bb Os & Y structure |
|
Manufacture：GB12235 |
Face to face：GB12221 |
|
Butt-welding：GB12224 |
Test：GB13927 |
公称压力
(nominal pressure) |
1.6Mpa |
2.5Mpa |
4.0Mpa |
|
密封试验(seal test) |
1.8MPa |
2.8MPa |
4.4MPa |
|
壳体强度(shell) |
2.4MPa |
3.6MPa |
6.0MPa |
适用温度
(suitabletemprature) |
300℃ | |
特点(features)：
|
双层波纹管(double walls bellow seal) |
维修方便(maintenance-free) |
|
波纹管密封阀杆(spindle with bellow seal) |
双重密封(secondary sealing) |
|
位置指示(position indicator) |
无升降手轮(non-rising handwheel) | |
用途(selection of possible applications)：
|
工业(industry) |
电站(power station) |
|
废气净化厂(flue gas puerification plant) |
天然气(gas supply) |
|
真空装置(vacuum facilities) |
氨(ammonia) |
|
热水(hot water) |
冷冻系统(cllling&freezing systme) |
|
加热设备(heating technology) |
蒸汽系统(steam system) | |
