Selection of heat transfer oil valves
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The PDF version sent earlier had some issues, which caused everyone to download it for nothing; I’m sorry about that. This version is in DOC format and should work fine. Introduction: The heat transfer oil is heated by a heat medium furnace to facilitate heat transfer and exchange, thereby raising the temperature of the crude oil. Due to its convenience of use, uniform heat transfer, simple operation of the equipment, and high thermal efficiency, heat transfer oil is being used more and more widely as the oil pipeline transportation industry develops. A heat transfer oil system is an indirect heating process system that circulates heat transfer oil between a heat source (heater) and a heat consumer. If organic heat transfer oil is operated below its stability limit and is not contaminated by substances from the outside of the system, it remains stable; however, sometimes the oil can overheat and become contaminated, resulting in the formation of insoluble substances. These insoluble substances deposit on the inner surfaces of the system, causing scaling there; moreover, the solid sediment can lead to blockages in the system’s pipes. Dirt reduces the efficiency of the entire system, increases wear on seals, and can even cause the heater to burn out or break. Heat transfer oil is an organic medium used under continuous high-temperature conditions, with operating temperatures generally ranging from 200 to 400 °C. To meet these special requirements, it is necessary to choose heat transfer oil with good thermal stability. Due to long-term use, heat transfer oil decomposes and deteriorates, and scale forms on the surfaces of the system, which affects the heat transfer efficiency and poses a threat to the safe operation of the heat transfer pipeline. Therefore, when the heat transfer oil reaches the end-of-life standard, it must be replaced promptly, and the heat transfer oil system should be cleaned. Although the flash point, ignition point, and auto-ignition point of general heat transfer oils are relatively high, they still belong to flammable substances that are prone to catching fire and exploding
Heat transfer oil systems generally use bellows-sealed globe valves, or pressure-self-sealing gate valves, globe valves.
I wonder if your bellows-sealed globe valve can withstand high temperatures of 320°C?
Give me your email address and I’ll send you the electronic sample by mail.
WJ41H-25 bellows globe valve, operating temperature 425 degrees.
Are there only bellows globe valves, and no gate valves or other types of valves?
D71H-25: temperature ≤ 300°C; Z40H-25: temperature ≤ 425°C; H41H-25: temperature ≤ 400°C℃
I checked the valve samples; generally, the temperature limit is no more than 120°C, and the diameter is no more than 200.
The data is from the Power Piping Handbook
Oh, let me check that for you. Thank you~!
Heat transfer oil valves sealed with bellows
Who has information on high-temperature resistant bellows-sealed valves?
For high temperatures, bellows are used for sealing. When heating oil is used, a three-way valve body is generally employed; does the return of the oil occur once the heating temperature is reached? ,