The face seals provide constant guiding throughout the valve stroke, maintaining continuous contact with the gate.
在阀门闸板运动的全过程中，密封面都对闸板提供恒定的引导，保持与闸板连续稳定的接触。
2
Valve shall feature modular check assemblies with center stem guiding.
这种阀门应该配置模块化止回阀总成，其阀杆为中心引导。
3
The utility model introduces a mechanism for guiding a valve piston returning to central positions, belonging to the technical field of a servomotor with follow-up action.