What is a 3-Way Pneumatic On-Off Hot Oil Valve?
A 3-way pneumatic on-off hot oil valve is a type of valve designed to control the flow of hot oil or other high-temperature fluids. These valves are generally used in industrial or commercial environments, such as process plants or power stations, where high temperatures and pressures are present. Hot oil valves can be applied in various applications, including heating, cooling, lubrication, and temperature control. They are typically made from materials that can withstand high temperatures and resist the corrosive effects of hot oil.
What is a Control Valve?
A control valve is a valve used to regulate a fluid by varying the size of the flow passage according to a signal from a controller. Control valves enable the regulation of pressure, temperature, flow, and level in all types of fluid processes. They allow fluids such as cold water, hot water, steam, hot oil, or gas to be transported and controlled without any loss in energy.
On-Off Working Principle of Hot Oil Valves
The on-off principle refers to a control system in which a device or system is either fully open or fully closed, without any intermediate states. This type of control is generally used in simple systems that require opening or closing based on a specific condition or input.
An example of on-off control is a thermostat that regulates a heating or cooling system. When the thermostat is set to a specific temperature, it opens or closes the system as needed to maintain that temperature. If the room temperature falls below the set point, the heating system turns on; if it rises above the set point, the system turns off.
The on-off principle is relatively simple to implement and understand, which is why it is often used in basic control systems. However, because it does not allow fine adjustments or intermediate states, it is less precise than other control methods.
General Features of Hot Oil Valves
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Product: 3-Way Pneumatic On-Off Hot Oil Valve (with metal bellows)
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Sizes: DN15 / DN20 / DN25 / DN32 / DN40 / DN50 / DN65 / DN80 / DN100
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Applications: Pressurized steam and hot oil pipelines
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Connection Standard: Flanged connection (DIN1092-2)
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Function: Distributor / Mixer
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Pressure Class: PN25
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Safety Position: Normally Closed – Normally Open
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Sealing Class: CLASS IV Metal-to-Metal
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Max. Operating Temperature: 350 °C
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Stem Sealing: CLASS VI – V-Packed Metal Bellows
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Characteristic: On-Off
Material Specifications of Hot Oil Valve
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Body: GGG – 40.3 Spheroidal Cast Iron
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Cover: GGG – 40.3 Spheroidal Cast Iron
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Stem Connection Part: ST44-3 (S275J0)
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Seat: 1.4571 Stainless Steel (AISI316)