Current location: home page > Valve knowledge >
 Low temperature ball valve
Low temperature ball valve
 Anti slip sleeve
Anti slip sleeve
 Switch type pneumatic ball valve
Switch type pneumatic ball valve
 Liquid chlorine pneumatic ball valve
Liquid chlorine pneumatic ball valve
 SCZ50-A flame retardant ventilation hood
SCZ50-A flame retardant ventilation hood
 Air drain valve of air compressor
Air drain valve of air compressor
 Wedge gate valve
Wedge gate valve
 Stainless steel stop valve for ammonia
Stainless steel stop valve for ammonia
 Air pressure reducing valve
Air pressure reducing valve
 Automatic gas shut-off valve
Automatic gas shut-off valve
 Inclined stem Pub bottom ball valve
Inclined stem Pub bottom ball valve
 Pneumatic cryogenic ball valve
Pneumatic cryogenic ball valve
 V-type electric ball valve
V-type electric ball valve
 Short shaft low temperature stop valve
Short shaft low temperature stop valve
 Liquid ammonia ball valve
Liquid ammonia ball valve
 Stainless steel bellows stop valve for ammonia
Stainless steel bellows stop valve for ammonia
 Ball valve for ammonia
Ball valve for ammonia
 Explosion proof electric control valve
Explosion proof electric control valve

Contact Yonglong

Consulting hotline 021-57566219
  • Mobile: 15900658318
  • Fax: 021-57568296
  • Email: 1257073858@qq.com
  • Address: Nanting Highway, Fengxian District, Shanghai
  • 2788

Common sense of structural form of emergency shut-off valve

Time: 2018-09-16 16:59:22 Source: Yonglong Valve Reading: zero second
Common sense of structural form of emergency shut-off valve
Emergency cut-off valve is also called: emergency safety cut-off valve. Its structural forms include pneumatic, electric, hydraulic and electronic. They are respectively called: pneumatic emergency cut-off valve, electric emergency cut-off valve, hydraulic emergency cut-off valve, gas emergency cut-off valve, liquid ammonia emergency cut-off valve, ammonia emergency cut-off valve and ammonia emergency cut-off valve. Especially for the shut-off valve used for combustible media, the cylinder is basically blocked (fusible alloy) to prevent the tank from being damaged by high ambient temperature. It can be melted at 75 ± 5 ℃, and the shut-off valve is closed by pressure relief.

Liquid ammonia electric emergency shut-off valve control room
Due to different operation modes in different working conditions Emergency shut-off valve There is no unified standard for the structural form of, but we choose our own products according to the actual application on the site, such as hydraulic ones, manual oil pumps that need to be operated on the site, and pneumatic ones, which need to have air sources on the site. The electronic type can only be used in low pressure, electric type, and the actuator must be explosion-proof with manual function.
The emergency shut-off valve is installed in the ammonia station for fire safety inspection, and the gas station must be installed compulsorily, mainly to prevent fire or leakage. Since the manual valve cannot meet this requirement, the installation of emergency safety shut-off valve is to prevent accidents and prevent on-site personnel from entering. The valve that can cut off the flow of media can be remotely controlled to protect tank safety and personnel safety devices.
Emergency shut-off valve The model selection shall follow the five principles of safety, scientificity, reliability, applicability and economy, as well as the requirements of site working conditions, such as the size of valve diameter, working pressure, medium type, medium temperature, ambient temperature, power voltage, connection mode, installation mode, control mode, valve body material, special options, etc.

Installation site of liquid ammonia electric emergency shut-off valve
It is important to remember that we can help you with any questions about Emergency shut-off valve Contact us at any time for technical requirements 15900658318.  
Note: All the pictures and texts on this website are owned by Shanghai Yonglong Valve Factory, which can only be viewed and downloaded by individuals for the purpose of appreciation, learning and research, and the source of the pictures should be indicated. If you need to use them for any public media or commercial purposes, please contact the staff of Shanghai Yonglong Valve Factory to obtain the authorization of the pictures, otherwise, in case of infringement of the pictures, Should bear the corresponding legal responsibility!

 Online Service