Paper industry and valve applications in Finland

First, the paper industry valve types

1. Intercepting doors

The interceptor, also known as the knife gate, is a valve that directly cuts off the flow of pipeline fluid. The closure door can be used to cut off the flow of high-pressure water, steam, dry gas and other media, and can be quickly closed in an emergency.

2. Gate valve

A gate valve is a manual valve used in fluid medium pipes that opens or closes the pipe by moving the blade up and down. In the paper industry, gate valves are usually used to control the flow and pressure of liquids such as slurry and pulp.

3. Butterfly valve

Butterfly valve is a flat or thin plate as the main structure of the valve, which can be rotated to control the flow of fluid. Butterfly valves are often used in the paper industry to control the flow of various waste liquids, pulp and chemicals.

4. Ball Valve

A ball valve is a spherical valve whose sphere can be rotated to control the flow of fluid. Ball valves are widely used in the paper industry, such as tension control, flow regulation, gas valve regulation, and manufacturing process control.

Second, the application of valves in the paper industry

1. Flow control

In the paper industry, the valve, as an important flow control equipment, is mainly used to adjust the size and flow direction of the medium in the pulping and papermaking process. This allows for better control of the feed rate of the paper machine drum head, resulting in more stable paper production and quality.

2. Pressure regulation

Valves in the paper industry can also be used to adjust the pressure of the medium, such as pressure reducing valves and safety valves used in steam pipelines. This can ensure the safety and stability of the production process, but also can save energy and reduce production costs.

3. Temperature control

In the papermaking process, maintaining a certain temperature can ensure the quality and stability of paper production. Valves play an important role in controlling the flow and temperature regulation of cooling water, heating water and other media.

4. Waste liquid, waste gas treatment

Paper making process produces a lot of waste liquid, waste gas, these waste liquid and waste gas need to be treated and discharged. As a flow control and closure equipment, the valve also plays an important role in the process of waste liquid and waste gas treatment.