TAILIEUCHUNG - Gas Burners for Forges Furnaces and kilns phần 2

thay đổi vị trí ốc vít, một sự cân bằng mới được thiết lập bất cứ điều gì áp lực mong muốn. Quản lý điều chỉnh có hai loại: một và hai giai đoạn. Những điều chỉnh của giai đoạn duy nhất, dòng thay đổi áp suất là áp lực tích xi lanh giảm, tạo ra một nhu cầu điều chỉnh thường xuyên khi được sử dụng với các thùng nhiên liệu áp suất cao. | Gas Burners 2 screw changes position a new balance is established at whatever pressure is desired. Adjustable regulators come in two kinds single and two stage. With single stage regulators the line pressure changes as the cylinder pressure reduces creating a need for frequent adjustment when used with high-pressure fuel tanks. Propane maintains a fairly constant pressure as it is being used so single stage regulators are practical for use with it and are less costly. As its name implies a two-stage regulator has a separate high to intermediate pressure chamber with a preset limit that moderates gas pressure before it reaches the adjustable chamber. So the pressure change within the bottle has very little affect on the adjustable pressure chamber. The practical difference between one and two stages comes from the nature of propane because it is not a perfect gas it is a vapor. That means it doesn t have perfectly uniform density and this can cause fluctuation in the burner. The finer the burner is tuned the more aggravating the problem can become. Two stage regulators are all but immune to fluctuation where as single stage regulators are not. Two stage regulators also cost about twice the price. There is another important difference to consider LPG regulators were developed especially for LPG gas. They are designed to accommodate its problems and maximize its advantages. Furthermore they have been refined over the years to do well outside where your bottle belongs and they are designed to run well in cold and damp weather. Shop regulators weren t. A good quality propane regulator is going to give better over-all performance than a two-stage shop regulator and will outlast it if they are both exposed to the The number of gauges on a regulator doesn t indicate whether it is single or two stage. Two gauges will show cylinder pressure and line pressure. A single gauge shows line pressure only. It is common to see both gauges on single stage regulators. LPG .

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