Nanjing Great Century Art Model Co., Ltd. , , https://www.dsjysmx.com
Bellows globe valve installation and maintenance precautions
Bellows globe valve has the following advantages: 1, the structure is simple, more convenient to manufacture and maintain. 2, small work schedule, opening and closing time is short. 3, good sealing, sealing surface friction, longer life expectancy. The shortcomings of the bellows shut-off valve are as follows: 1, the fluid resistance, opening and closing the required force larger. 2, does not apply to the particles with a larger viscosity, easy to coking medium. 3, adjust the performance is poor. Bellows globe valve installation and maintenance should pay attention to the following: 1, handwheel, handle the operation of the globe valve can be installed in any position on the pipeline. 2, hand wheel, handle and Wei moving mechanism, do not allow lifting. 3, the flow of medium should be consistent with the arrow direction shown by the valve body.