How about the self closing valve of the Holy Flag Line, how to use the self closing valve of pipelin

Natural gas self-closing valves.

It is a mandatory provision, not that you don't want to install it, because the installation of the self-closing valve can effectively prevent gas leakage, this can be automatically closed, no need to operate manually, but also for everyone's safety, you can not choose the self-closing valve provided by the gas company, but you need to buy it yourself, find a master for safety.

This is mandatory installation, you can not recruit a natural gas company to buy a self-closing valve, but you also need to buy a self-closing valve, otherwise you will not open the gas.

Shengqixing gas pipe is a metal gas pipe, which is not only anti-rat bite but also has higher safety performance of the product. The main products of Shengqixing cover corrugated pipes, gas hoses, gas pipe hoses, stainless steel gas pipes, copper cores, steel caps, cold water pipes, single-head pipes, explosion-proof pipes, gas pipes, metal pipes, corrugated hoses, stainless steel basins, explosion-proof hoses, connecting pipes, hot water pipes, stainless steel hoses, sub-controllers and other fields.

The gas self-closing valve is a safety device that automatically closes under the condition of abnormal gas supply, and is an automatic protection device on the gas pipeline, and the valve cannot be artificially opened and closed. The self-closing valve will automatically close when the line is shut down or the pressure is too high. This answer is suitable for most gas stove models such as Boss 27A5+57.

The safety self-closing valve is a valve that automatically closes under abnormal conditions of gas supply, and is an automatic protection device, which cannot be operated manually as a switch valve.

The self-closing valve will automatically close when the pipeline network stops gas or the pressure is too large, and under normal conditions, the self-closing valve reset button pull rod is in the green line scale state, and when the red line on the reset button pull rod pops up, it proves that the pressure in the gas pipeline is too large, and the self-closing valve closes by itself; When the lever of the reset button is fully retracted, it means that the pipe network is stopped or the gas hose falls off, and the self-closing valve also closes by itself.

Natural gas self-closing valves will prevent the output of gas under abnormal conditions, and self-closing valves will automatically close the valve when the pipeline network is shut down or the pressure is too high.

Pipeline gas self-closing valve, referred to as self-closing valve, is installed on the pipeline of low-pressure gas system, when the pipeline gas supply pressure is underpressure or overpressure, without electricity or other external power, it can be automatically closed and must be opened manually.

The self-closing valve installed at the end of the pipe behind the gas meter and the connection between the hose should have a pressure loss closing function. Pipeline gas self-closing valve is suitable for pipeline natural gas, liquefied petroleum gas and artificial gas.

The basic principle of the pipeline gas self-closing valve is to magnetize the permanent magnet material according to the design requirements to make a multi-pole permanent magnet linkage mechanism with permanent memory, identify the changes in the gas pressure parameters during the period, and automatically close the valve when the safety setting value is exceeded to cut off the gas source.

The function has the functions of automatic shutdown and manual reset of under-voltage, over-pressure and loss of pressure. In the event of gas stoppage, abnormal air supply, hose falling off, etc., it will automatically shut down to prevent leakage;

No electricity, or any external power, to achieve automatic shut-off;

Automatic work, long-term reliability, no malfunction;

The working status is clear, and it is easy to troubleshoot;

Simple to install and easy to use.

Gas tanks with self-closing valves are particularly convenient to refuel, because they were designed with this in mind, and the safety and convenience attributes of the gas tank are great, so don't worry about refueling is particularly convenient.

It was found that there have been frequent incidents related to liquefied gas recently, and most of them are caused by improper operation or failure to conduct safety inspections in the family, which is still very sensitive as a liquefied gas industry. As one of the most used gases at present, liquefied gas is closely related to our lives, and if we don't take the safety of liquefied gas seriously, we don't take the safety of our lives and property seriously!

On May 1, 2018, the new national standard for LPG cylinder valves (GB T 7512-2017) began to be officially implemented, and the new national standard clearly stipulates that the valve outlet must be of the type with a self-closing device.

In the work of replacing the self-closing device LPG cylinder valve, we found that some users do not know how to install the pressure reducing valve, in order to ensure the safety of the people's gas, today we will take a look at how to correctly install and use the pressure reducing valve.

Precautions in the installation process: due to the spring structure in the self-closing structure of the new angle valve, there is a certain elasticity, and in the process of installing the pressure reducing valve, greater resistance needs to be overcome, which requires that when the pressure reducing valve handwheel is screwed, the tightening force is increased (the force habit installed on the old valve needs to be changed) to ensure that the pressure reducing valve is installed in place.

It shouldn't have to be changed.

If the model matches, it is recommended not to change it, and it is recommended to consult the natural gas company.

"Self-closing valve on exhaust air" - that's not a valve, it's the windshield blade of the exhaust fan. Some are automatic, when the fan turns, the fan blades will be blown open, the air is discharged, the fan stops, and the fan blades will automatically close to prevent the outside air flow or rainwater from pouring in; Some are connected with the switch mechanism, and the fan blade is pulled up when the switch is energized (the fan rotates), and the air is discharged outward, which is better and avoids the disadvantage that the fan cannot blow the fan due to insufficient wind power for a long time.

1.lack of oil; 2.The circuit is broken, causing the BAI oil supply valve to close; du3.

Blockage of oil circuits; 4.pull cylinder; 5.The crankshaft bearing is ablated, and the crankshaft cannot be rotated; Measures to prevent diesel engine DAO self-extinguishing failure: High-quality fuel should be used daily, and the air in the low-pressure oil circuit must be drained before starting after refueling.

2.Clean the outlet valve and replace the broken outlet valve spring. 3.

Inspect the oil pump plunger and injector needle valves, and grind or replace worn parts if necessary. 4.Overhaul the oil pump springs, speed regulating springs and valve springs, and replace them in time if they are found to be broken.

5.Check whether there is water leakage and oil leakage, and repair it if necessary, so as to avoid the engine cylinder and bearing shaft caused by engine overheating or poor lubrication and causing self-stalling. Chinese name of EFI diesel engine type A diesel engine Definition Electronically controlled fuel injection and emission components Sensor, ECU (computer) and actuator Basic content: Diesel engine that uses electronic control of fuel injection and emission is an EFI diesel engine.

The EFI diesel injection system consists of three parts: sensor, ECU (computer) and actuator. Its task is to electronically control the fuel injection system, and realize the real-time control of the fuel injection volume and the fuel injection timing with the operating conditions. Using sensors such as speed, accelerator pedal position, fuel injection time, intake air temperature, inlet air pressure, fuel temperature, cooling water temperature, etc., the real-time detected parameters are input into the computer (ECU) at the same time, and compared with the stored set parameter values or parameter maps (MAP diagrams), and the instructions are sent to the actuator according to the best value or calculated target value after processing and calculation.

The actuator controls the amount of fuel injection (the position of the oil supply rack or the duration of the solenoid valve closing) and the fuel injection timing (the opening and closing of the timing control valve or the start point of the solenoid valve closing) according to the ECU command, and controls the actuators such as the exhaust gas recirculation valve and the preheat plug to achieve the best operating state of the diesel engine.