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推动高粘流体进入吸入口一侧的两齿空间是非常重要的,如果这一空间没有填充满,则泵就不能排出准确的流量,所以PV值(压力×流速)也是另外一个限制因素,而且是一个工艺变量。由于这些限制,齿轮泵制造商将提供一系列产品,即不同的规格及排量(每转一周所排出的量)。这些泵将与具体的应用工艺相配合,以使系统能力及价格达到较优。
PEP-II泵的齿轮与轴共为一体,采用通体淬硬工艺,可获得更长的工作寿命。“D”型轴承结合了强制润滑机理,使聚合物经轴承表面,并返回到泵的进口侧,以确保旋转轴的有效润滑。这一特性减少了聚合物滞留并降解的可能性。精密加工的泵体可使“D”型轴承与齿轮轴精确配合,确保齿轮轴不偏心,以防齿轮磨损。Parkool密封结构与聚四氟唇型密封共同构成水冷密封。这种密封实际上并不接触轴的表面,它的密封原理是将聚合物冷却到半熔融状态而形成自密封。也可以采用Rheoseal密封,它在轴封内表上加工有反向螺旋槽,可使聚合物被反压回到进口。为便于安装,制造商设计了一个环形螺栓安装面,以使与其它设备的法兰安装相配合,这使得筒形法兰的制造更容易。
PEP-II齿轮泵带有与泵的规格相匹配的加热元件,可供用户选配,这可保证加温和热量控制。与泵体内加热方式不同,这些元件的损坏只限于一个板子上,与整个泵无关。
4WE5E-6.0/AW220-50NZ4,4WE5E-6.0/AW220-50NZ5,4WE5E-6.0/AW220-50NZ5L,4WE系列电磁换向阀
4WE5E-6.0/AW220-50Z4,4WE5E-6.0/AW220-50Z5,4WE5E-6.0/AW220-50Z5L,4WE系列电磁换向阀
4WE5E-6.0/AW220RNZ4,4WE5E-6.0/AW220RNZ5,4WE5E-6.0/AW220RNZ5L,4WE系列电磁换向阀
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4WE5E-6.0/OAW220-50NZ4,4WE5E-6.0/OAW220-50NZ5,4WE5E-6.0/OAW220-50NZ5L,4WE系列电磁换向阀
4WE5E-6.0/OAW220-50Z4,4WE5E-6.0/OAW220-50Z5,4WE5E-6.0/OAW220-50Z5L,4WE系列电磁换向阀
4WE5E-6.0/OAW220RNZ4,4WE5E-6.0/OAW220RNZ5,4WE5E-6.0/OAW220RNZ5L,4WE系列电磁换向阀PGP511A0080AA1D3C2N
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