Unox 2-Way Pneumatic On-Off Hot Oil Valve

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

A 2-way pneumatic on-off 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 from materials resistant to high temperatures and the corrosive effects of hot oils.

What is a Control Valve?

A control valve is a valve used to regulate the flow of a fluid by varying the size of the flow passage in accordance with a signal from a controller. Control valves allow for the control of pressure, temperature, flow, and level in all processes involving fluids. They enable the transport and control of fluids such as chilled water, hot water, steam, hot oil, vapor, and gases produced in industrial systems without significant loss.

How Does a Hot Oil On-Off 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 states. This type of control is typically used in simple systems where a device or system needs to be turned on or off based on certain conditions or inputs.

An example of the on-off principle is a thermostat controlling a heating or cooling system. When the thermostat is set to a specific 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.

The on-off principle is relatively easy to implement and understand, making it suitable for simple control systems. However, it does not allow fine adjustment or intermediate positions, so it may be less precise than other control methods.

General Features of Hot Oil Valve

• Product: 2-Way Pneumatic 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 connection (DIN1092-2)

• Pressure Class: PN25

• Safety Position: Normally Closed – Normally Open

• Sealing Class: CLASS IV Metal-to-Metal

• Maximum Operating Temperature: 350 °C

• Stem Sealing: V-Packed with Metal Bellows

• Characteristic: On-Off

Material Specifications of Hot Oil Valve

• Body: GGG – 40.3 Spheroidal Cast Iron

• Cover: GGG – 40.3 Spheroidal Cast Iron

• Stem Connector: ST44-3 (S275J0)

• Seat: 1.4571 Stainless Steel (AISI316)