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武穴黎翔机电设备有限公司，询价：何琴

询价：，    

询价

询价: 736567721,704552157          
派克比例阀
名  称：派克比例阀
品  牌：parker派克
型  号：D41FBE01FC1NF00
介  绍：
美国派克PARKER比例阀适用性 ◇管路中的流体必须和选用的比例阀系列型号中标定的介质*。
流体温度必须小于选用比例阀的标定温度。
美国派克PARKER比例阀允许液体粘度一般在20CST以下，大于20CST应注明。
工作压差，管路zui高压差小于0.04MPa时应选用如ZS，2W，ZQDF，ZCM系列等直动式和分布直动式；zui低压差大于0.04MPa时可选用先导式（压差式）比例阀；zui高工作压差应小于比例阀的zui大标定压力；一般比例阀都是单向工作，因此要注意是否有反压差，如有安装止回阀。
流体清洁度不高时应在比例阀前安装过滤器，一般比例阀对介质要求清洁度高。
注意流量孔径和接管口径；比例阀一般只有开关两位控制；条件允许请安装旁路管，便于维修；有水锤现象时要定制比例阀的开闭时间调节。
注意环境温度对比例阀的影响。
电源电流和消耗功率应根据输出容量选取，电源电压一般允许±10%左右，必须注意交流启动时VA值较高。 
可靠性 -比例阀分为常闭和常开二种；一般选用常闭型，通电打开，断电关闭；但在开启时间很长，关闭时间很短时要选用常开型了。
寿命试验，工厂一般属于型式试验项目，确切地说我国还没有比例阀的专业标准，因此选用比例阀厂家时要慎重。
动作时间很短，频率较高时一般选取直动式，大口径选用快速系列。
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