Outlet gate valve can be opened / closed slowly to prevent surges 出口闸阀可以慢慢开启/关闭以防止水流汹涌。
2.
All kinds of resisting moment effects upon pump start - up process are fully considered and the different operational results of outlet gate with little flap valve are also reviewed 在计算过程中，比较完整地考虑了各种阻力矩对起动过程的影响，同时重点考察了平直管出水流道，具有快速闸门带小拍门断流装置形式的起动效果。
