Unox 2-Way Motorized On-Off Hot Oil Valve

What is a 2-Way Motorized On-Off Hot Oil Valve?

A hot oil valve is a type of valve designed to control the flow of hot oil or other high-temperature liquids. These valves are generally used in industrial or commercial environments such as process plants or power stations, where high temperatures and pressures are involved. Hot oil valves can be used in various applications including heating, cooling, lubrication, and temperature control. They are typically made of materials that can withstand high temperatures and resist the corrosive effects of hot oils.

What is an On-Off Hot Oil Valve?

A control valve is a valve used to regulate the flow of a fluid by varying the size of the flow passage in response to a signal from a controller. Control valves ensure pressure, temperature, flow, and level control in all processes where fluids are present. They allow fluids such as cold water, hot water, steam, hot water, vapor, and gas—produced using energy in industrial operations—to be transported and controlled without loss.

How Does an On-Off Hot Oil Valve Work?

The On-Off principle refers to a control system in which a device or system is either fully open or fully closed, with no intermediate positions. This type of control is typically used in simple systems where a device or system needs to be turned on or off 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 certain temperature, it turns the system on or off as needed to maintain that temperature. If the room temperature drops below the set point, the heating system turns on; if it rises above the set point, the heating system turns off.

On-Off control is relatively easy to implement and understand, making it suitable for simple control systems. However, it is less precise than other control methods because it does not allow fine adjustments or intermediate positions.

General Features of the On-Off Hot Oil Valve

• Product: 2-Way Motorized On-Off Hot Oil Valve (with metal bellows)

• Sizes: DN15 / DN20 / DN25 / DN32 / DN40 / DN50 / DN65 / DN80 / DN100

• Application: Pressurized steam and hot oil lines

• Connection Standard: Flanged (DIN1092-2)

• Pressure Class: PN16-PN25 (PN40 optional)

• Maximum Operating Temperature: 350 °C

• Stem Seal: Class VI – Metal-to-Metal with Metal Bellows, PTFE-Grafite

• Characteristic: On-Off

• Maintains its position in case of power loss

Electric Motor Features of the On-Off Hot Oil Valve

• Power Supply: 24 VAC – 24 VDC – 220 VAC (3-Point Floating Control)

• Actuating Force: 1000N – 2200N – 2500N – 3000N

• Stroke: 20 mm for DN 15–50; 30 mm for DN 50–100

• Stroke Completion Time: 20 s for DN 15–50; 30 s for DN 50–100

Material Specifications of the On-Off Hot Oil Valve

• Body: GGG – 40.3 Ductile Iron

• Cover: GGG – 40.3 Ductile Iron

• Stem Connection: ST44-3 (S275J0)

• Actuator Housing: AL6063 Casting – ABS Plastic

• Seat: 1.4571 Stainless Steel (AISI316)