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DM643F (X) gas emergency shut-off valve

DM643F (X) gas emergency shut-off valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

Reasonable price: efficient internal cost control, reducing expenses and benefiting customers!

Fast delivery: advanced production lines, sufficient stocking, shortening the delivery time!
Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process


  Product name :

Gas emergency shutoff valve  

   Product model :  

X DM643F ( X )  

   Driving method :


   Connection form :  


   Structure form :

Double eccentricity  

   Sealing material :

Oil-resistant rubber or Teflon  

   Pressure range :


   Nominal diameter :


   Common materials :

Carbon steel, stainless steel  

   Technical consultation :


DM643F X )煤气紧急切断阀 〗制造商,也是国内大型【 切断阀 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖 H7DM643F X )煤气紧急切断阀〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of [ DM643F ( X ) gas emergency shutoff valve ] and one of the large domestic [ cutoff valve ] manufacturers. Since its establishment, the company has always focused on customer needs and continued innovation. Provide H7DM643F ( X ) gas emergency shut-off valve solution for the majority of agents and corporate customers . It has reliable quality and affordable price, so it sells all over the country. Welcome new and old customers to call us and email us. We will provide you with the best service. .  

概述 I. Overview of gas emergency shutoff valve  

   X 煤气紧急切断阀,本系列产品作为煤气快速启闭设备,是我厂引进国外先进技术,结合国内加热炉实际情况进行开发设计的新产品,是加热系统中防止煤气外泄等重大安全事故发生最有效、最理想的安全装置。 DM643F , X gas emergency shut-off valve, this series of products, as fast opening and closing equipment for gas, is a new product developed and designed by our factory by introducing advanced foreign technology and combining with the actual situation of domestic heating furnace. The most effective and ideal safety device for accidents. It has the advantages of simple structure, sensitive and reliable action, convenient operation and maintenance, good sealing performance, fast cutting speed and low resistance. The valve is an indispensable safety device in gas furnace control systems in industries such as metallurgy, petrochemicals and power stations.  

  结构特点 Structural characteristics of gas emergency shutoff valve  

    It adopts double eccentricity plus cone oil-resistant rubber or Teflon sealing structure, which has the function of closing more and more tightly. At the same time, the sealing pair can be adjusted after wearing, and the compensation is good. The valve has the advantages of fast cutting speed, easy operation, good sealing performance, sensitive and reliable operation, etc.  

气动执行器 Three, pneumatic emergency shut-off valve pneumatic actuator  

   GT 型气动执行器,有双作用式和单作用式(弹簧复位),齿轮齿条传动,安全可靠:大口径阀门采用系列 AW 型气动执行器拔叉式传动,结构合理,输出扭矩大,有双作用和单作用式(弹簧复位);参考本公司气动执行器样本。 Adopt new series GT type pneumatic actuator, which has double acting type and single acting type (spring return), rack and pinion transmission, safe and reliable: Large-caliber valve adopts series AW type pneumatic actuator with fork-type transmission, reasonable structure and output torque Large, double-acting and single-acting (spring return); refer to our company's pneumatic actuator samples.  

主要技术参数 Fourth, the main technical parameters of gas emergency shutoff valve    

Nominal pressure  

0.6 1.0 1.6MPa 0.25 , 0.6 , 1.0 , 1.6MPa  

Operating temperature  

225 -20 225  


B A C , B , A  

Air pressure  


Fast cut-off time  

8S 2 8S  

Solenoid valve voltage when cut off  

24V 36V 220V 12V , 24V , 36V , 220V
(According to user requirements)  

Applicable medium  


主要零件选用材料 V. Material selection for main parts of gas emergency shutoff valve  

Valve body, valve plate  

Cast iron, cast steel, cast stainless steel  

Valve shaft  

stainless steel  


Flexible graphite  

six,   安装使用及配套说明 Installation and use of gas emergency shut-off valve  

   Quick cut-off function: When the valve needs to open or close quickly, it only needs the signal to instruct the solenoid valve to close, the solenoid valve opens, and the air source directly controls the cylinder to open and open the valve. (Manual device can be added according to user requirements)  

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