1. Pressure reducing valve

The pressure reducing valve of domestic gas cylinder is also known as low-pressure valve. The standard name is domestic bottled LPG pressure regulator. It is used in thousands of households and is closely related to our life safety.

The pressure reducing valve is a valve that reduces the inlet pressure to a required outlet pressure through adjustment, and automatically maintains the outlet pressure stable by relying on the energy of the medium itself.

From the perspective of fluid mechanics, the pressure reducing valve is a throttling element whose local resistance can be changed, that is, by changing the throttling area, the flow rate and kinetic energy of the fluid can be changed, resulting in different pressure losses, so as to achieve the purpose of pressure reduction.

2. Function of pressure reducing valve

The pressure reducing valve of domestic gas cylinder is also known as low-pressure valve. The standard name is domestic bottled LPG pressure regulator. It is used in thousands of households and is closely related to our life safety.

The pressure reducing valve is a valve that reduces the inlet pressure to a required outlet pressure through adjustment, and automatically maintains the outlet pressure stable by relying on the energy of the medium itself. From the perspective of fluid mechanics, the pressure reducing valve is a throttling element whose local resistance can be changed, that is, by changing the throttling area, the flow rate and kinetic energy of the fluid can be changed, resulting in different pressure losses, so as to achieve the purpose of pressure reduction.

3. Classification of pressure reducing valve

Low pressure valve, medium pressure valve, high pressure valve

Taboo of using pressure reducing valve

The pressure in the gas cylinder is relatively high. If it is directly connected to the stove, first, the flame combustion of the stove will be unstable; Second, high pressure direct connection to the stove will produce safety hazards, and high pressure is easy to cause leakage in combustion; Third, a large number of gases rush out to produce a strong flame, which greatly wastes energy (domestic gas big flame combustion is completely unnecessary, and the incompletely burned gas is harmful to human body); Fourth, the pressure of the high-pressure valve is high and the flow rate is fast. It is very likely that the liquefied gas will be released into the air if it fails to ignite. If it ignites again, it is easy to ignite the mixed gas and explode, which will indirectly lead to the explosion of liquefied gas cylinders in serious cases.

We must pay attention to that the pressure reducing valve of domestic gas stove must be a regular pressure reducing valve with jyt-0.6, inlet pressure ≤ 1.56mpa, outlet pressure 2800pa ± 500pa, and it is not adjustable.

The pressure reducing valves on the market are diverse and of uneven quality. So we must be careful when buying pressure relief valves. We must buy qualified pressure relief valves from regular manufacturers to prevent being deceived into buying fake and shoddy products.