直流式德标波纹管截止阀
Bb Os & Y型结构制造标准：DIN3356 结构长度：DIN3202法兰标准：DIN2543-2545 对焊口标准：DIN3239试验标准：DIN3230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)
