定流量多功能阀
FIXED FLOW MULTIFUNCTIONAL VALVE
应用
定流量多功能阀可应用于石油、化工、冶金、水处理等行业中，此阀综合了蝶阀、平惭阀、无声止回阀以及测流量阀等多种功能于一身，可代替票出口截止、节流、止回网三台阀门，实现一闷多用。
Apply
Constant flow multi-function valve can be used in petroleum, chemical industry, metallurgy, water treatment and other industries, this valve integrates butterfly valve, leveling valve, silent check valve and flow measurement valve and other functions in one, can replace the exit cut-off, throttling, check net three valves, to achieve a dull multi-purpose.
工作原理
阀体配有却速关闭弹箭，利用快关原理防止水锤的产生，防止介质倒流，达到静音关闭；装有开度指示器，通过调节开座，可以调节水票的输出量；通过关闭阀杆可对介质进行截止起到截止阀的作用。
Working principle
The valve body is equipped with a quick-closing projectile, using the quick-closing principle to prevent the production of water hammer, prevent the backflow of the medium, and achieve silent closing; Equipped with opening indicator, by adjusting the opening seat, the output of the water ticket can be adjusted; By closing the valve stem, the medium can be shut off to play the role of a stop valve.
特点
● 有一个开度指示器显示阀门的开合程度
● 阀瓣密封面是由直接硫化在球墨铸铁阀瓣上的EPDM橡胶构成，因而可以吸收关闭阀瓣时所产生的冲击，并且完全密封。
peculiarity
● There is an opening indicator to show the degree of valve opening and closing
● The disc sealing surface is made of EPDM rubber vulcanized directly on the nodular cast iron disc, thus absorbing the impact of closing the disc and sealing it completely.
技术规格
尺 寸：DN50~DN500
工作温度：-10~120℃
承压等级：PN16
工作介质：水、乙二醇溶液
连接方式：法兰连接
连接标准：EN1092-1/2GB/T17241.6-2008
材 质：
①阀体：球墨铸铁
②阀瓣：球墨铸铁
③阀杆：不锈钢
④弹簧：不锈钢
⑤密封圈：EPDM
⑥刻度装置：塑料/不锈钢
Technical specification
Size: DN50~DN500
Operating temperature: -10~120℃
Pressure class: PN16
Working medium: water, glycol solution
Connection mode: flange connection
Connection standard: EN1092-1/2GB/T17241.6-2008
Material:
① Valve body: ductile iron
② Valve disc: ductile iron
③ Valve stem: stainless steel
④ Spring: stainless steel
⑤ Sealing ring: EPDM
⑥ Calibration device: plastic/stainless steel
安装说明
· 将设备要求的额定参数与产品上表示的额定参数进行对照，确保满足应用的要求；
· 安装人员必须是经过培训的、有经验的，以确保安装工作顺利完成；
· 在安装结束后必须进行彻底地检查以确保安装无误；
· 为确保安装工作不出现任何意外，在产品安装前必须对管道系统进行彻底的清洗(必要时采用化学试剂),以确保管道系统的清洁，无锈蚀盒污垢在冲洗前必须移去所有的过滤装置 以确保管道通畅；
· 建议在系统初始清洗时在设备安装管道处安装临时管道，待冲洗工作完成后再将设备安装到管道上；使用符合标准的法兰与紧固件来连接。
Installation instructions
· Compare the rated parameters required by the equipment with those indicated on the product to ensure that the requirements of the application are met;
· Installation personnel must be trained and experienced to ensure the smooth completion of installation work;
· A thorough inspection must be carried out after installation to ensure that the installation is correct;
· In order to ensure that there are no accidents in the installation work, the piping system must be thoroughly cleaned (with chemical reagents if necessary) before the installation of the product to ensure that the piping system is clean, and no rust box dirt must be removed before washing to ensure that all filter devices are smooth;
· It is recommended to install temporary pipes at the installation pipes of the equipment during the initial cleaning of the system, and install the equipment on the pipes after the washing work is completed; Use standard flanges and fasteners for connection.
主要技术参数
Main technical parameters
Kv值：
Kv value:
