ZKQ清洗阀_旋转阀厂家_旋转阀
Changzhou Jinkui Machinery Manufacturing Co., Ltd. specializes in the production of rotary valves, blowers, blowers, star unloaders, unloading equipment, ash unloading valves, closed blowers, dust removal equipment accessories, unloader manufacturers, rotary valve manufacturers, metal Materials, quick cleaning valves, reducers, dust removal equipment accessories and other environmental protection equipment products;
key word:
ZKQ清洗阀_旋转阀厂家_旋转阀
Category:
ZKQ Quick Cleaning Rotary Valve Series
Product description
今天,旋转阀厂家将向您介绍旋转阀的操作方法和开启压力的调节:在安全阀出厂之前,应将开启压力调节到用户所需的设定值。 如果用户建议弹簧的工作压力水平,则通常应在出厂前调整压力水平的下限。
在将安全阀安装到受保护的设备之前或在安装之前,用户必须在安装现场进行重新调节,以确保安全阀的设定压力值满足要求。 在铭牌上标明的弹簧工作压力范围内,可以通过旋转调节螺钉以改变弹簧的压力来调节打开压力。
在旋转调节螺钉之前,应将阀进口压力降低到打开压力的90%以下,以防止在旋转调节螺钉时驱动阀盘旋转,从而可能损坏密封表面。

为了确保打开压力值的准确性,调节期间的介质条件(例如介质类型和温度)应尽可能接近实际操作条件。 介质的类型会发生变化,尤其是当介质的累积状态不同(例如,从液体变为气体)时,打开压力通常会发生变化。 当工作温度升高时,开启压力通常会降低。 因此,在室温下进行高温调节时,室温下的设定压力值应略高于所需的开启压力值。 它的高低与阀门的结构和材料的选择有关,应基于制造商的说明。
传统的安全阀用于固定额外的背压。 在检查后调节打开压力时(此时的背压为大气压),其设定值应为所需的打开压力值减去附加背压值。 为了调节阀门的排气压力和回油压力,必须对阀门进行测试以达到全开高度。 因此,只能在大容量测试设备上执行此操作,或者只能在将安全阀安装在受保护的设备上之后执行此操作。 调节方法因阀门结构而异。
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