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Normal requirements for the installation of emergency shut-off valve: root valve + emergency shut-off valve + metal hose.
Manually close the valve.
It is generally installed on the inlet and outlet pipelines.
The standards are as follows: SH3007 A total shut-off valve should be set up near the root of the tank material inlet and outlet pipeline, and an operating valve should also be set on the material inlet and outlet pipeline of each storage tank.
SH3136 LPG.
An emergency shut-off valve should be set at the liquid phase inlet and outlet of the spherical storage tank, and its position should be close to the spherical storage tank.
Generally, it is not possible to rely on personnel to close manually operated valves, using the following two methods:
1. Pneumatic valves are adopted, and the air source pipe of the pneumatic valve is easy to burn, so that once the air source pipe is burned out, the FC pneumatic valve will be automatically closed.
2. The temperature-controlled emergency shut-off valve is installed inside, and when the external flame burns to a certain temperature, such as 120 degrees, the valve will be automatically cut off.
Part of the documents and summary of the specifications for setting up emergency shut-off valves in tank farms with major hazard sources".
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The emergency shut-off valve of the underground storage tank should be located at the outlet of the storage tank, that is, where the storage tank is connected to the transmission pipeline. In this way, in the event of an emergency, the connection between the storage tank and the transmission pipeline can be quickly cut off to avoid liquid leakage or accidents.
In addition, to ensure the effectiveness of the emergency shut-off valve, regular inspections and maintenance should also be carried out to ensure that it is operating properly. At the same time, professional emergency rescue teams and equipment should be equipped to respond to possible emergencies and ensure the safety of people and the environment.
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Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:
The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.
First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.
These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.
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Hello dear <> my answer is as follows, please take a look at Ha <> 1Outlet Pipe End: The emergency shut-off valve can be installed directly at the end of the tank's outlet pipe to quickly cut off the connection between the tank and the pipeline in an emergency.
2.Blowdown pipes: Some tanks are equipped with blowdown pipes to discharge impurities or liquids from the bottom of the tank.
The emergency shut-off valve can be installed on the drain pipe to cut the connection between the drain pipe and the storage tank if needed. 3.After filter or valve:
Tank outlet pipes may be connected to filters or other valve bumps, and emergency shut-off valves can be installed behind these devices to cut the connection if needed.
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Is it true that the lower inlet and outlet pipes of the liquefied hydrocarbon storage tank can be equipped with an emergency shut-off valve with remote operation only?
The lower inlet and outlet pipes of the liquefied hydrocarbon storage tank usually need to be equipped with an emergency shut-off valve to ensure that the flow of the inlet and outlet pipes can be quickly cut off in an emergency, and the safety of personnel and equipment can be ensured. For emergency shut-off valves that only have remotely operated pin covers, they can be selected on a case-by-case basis. Typically, emergency stunt-off valves with only remote operation can be set up or not depending on process requirements and safety standards.
If other safety measures are set up on the inlet and outlet pipes, such as temperature, pressure, flow monitoring devices, etc., and the emergency shut-off valve can be operated remotely to quickly cut off the flow of the inlet and outlet pipes in the event of an emergency, then an emergency shut-off valve with remote operation alone will suffice. However, it should be noted that the emergency shut-off valve is one of the important measures for the safety of liquefied hydrocarbon storage tanks, so the safety risks need to be fully considered when selecting and setting the emergency shut-off valve, and the operation should be carried out in strict accordance with the relevant process and safety standards.
Generally, it is inspected once every month.
Pneumatic emergency shut-off valve. It is a kind of actuator in the automation system, which is composed of a multi-spring pneumatic membrane actuator or a floating piston actuator and a regulating valve, which receives the signal of the regulating instrument and controls the cut-off, on-on or switching of the fluid in the process pipeline. The air source of the pneumatic shut-off valve requires filtered compressed air, and the medium flowing through the valve body should be liquids and gases free of impurities and particles.
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