Lead: For knife gate valves, I believe most readers will be familiar with them. It is a valve widely used in life. It is such an ordinary valve knife that plays a very important role in our life. So do readers know what the working principle of knife gate valve is? Here is a brief introduction about the working principle of knife gate valve. I hope Bian Xiao's introduction will give you a better understanding of knife gate valve.

Brief introduction of knife gate valve

Knife gate valve is a common electric gate valve and can also be regarded as a very common switch. Its shape is a bit like an ancient hay cutter, so people habitually call this switch valve a knife gate valve, and many people call it a "knife valve". The shape of knife gate valve can be explained vividly. Now, knife gate valves are not only used in circuits, but also in most industries of industrial pipelines. Now the knife gate valve is no longer as simple as the knife in the past circuit, but has a more complicated structure and more advanced functions. The following introduces the working principle of knife gate valve for everyone.

Introduction of working principle of knife gate valve

Knife gate valve mainly includes three parts: control handwheel of knife gate valve, outer wall of valve body and internal control device. We use the knife gate valve mainly by manipulating the handwheel on the knife gate valve. The operation is simple, which makes the control device inside the valve body carry out a series of physical movements, and finally realizes the opening and closing of the valve, so that the knife gate valve can work normally and control the on-off of the pipeline.

The internal structure of knife gate valve is very complicated. We turn the handwheel of the knife gate valve by hand to make it rotate, so that the knife gate valve can affect the work of the lever and gear inside the knife gate valve. After the linkage movement, the locking device in the valve can change rapidly, and the knife gate valve can be opened and closed according to the different rotation directions. Moreover, such work can be completed in a short time, which can effectively save time and improve work efficiency.

Advantages of knife gate valve

Why can knife gate valves be used so widely? This is because the knife gate valve has a strong advantage. First of all, the knife gate valve is light in weight and has a large space inside the valve body, which can effectively save raw materials and reduce production costs. Secondly, the knife gate valve can also be controlled by electronic computer, which can fully realize automation and improve the working efficiency of the valve. In addition, the use of knife gate valve can switch pipes or switches in a short time, which can reduce the waste of resources, improve production efficiency and save resources. Knife gate valves are also wear-resistant, so knife gate valves are generally durable, and one can be used for many years.

Characteristics of knife gate valve:

1. You can choose to control the valve manually, pneumatically, electromagnetically or remotely by computer. You can operate the valve at a short distance and control the valve at a long distance to meet the needs of users in various working environments.

2. The valve body is made of new carbon steel, with exquisite design, material saving, light weight and convenient installation, transportation and maintenance.

3. There is no groove in the base, and no impurities will be deposited. At the same time, the wear-resistant sealing ring is designed scientifically, so that the rubber ring is vulcanized in the valve body, which improves the sealing performance of the valve and ensures that the valve has no leakage. At the same time, the novel lifting valve plate design can automatically clean the impurities attached to the valve plate surface.

4. The unique design makes the valve small in size, small in occupied space and low in installation environment requirements.

Purpose of knife gate valve:

Knife gate valve is widely used in industrial production, food manufacturing, medical and health care, sewage treatment and other industries because of its superior performance. Dedicated to:

1. Wood pulp, pulp and other mixed pipes in paper industry

2. Purification pipelines for sewage and sludge.

3. Pipelines in industrial and mining industries such as ash discharge, slag filtration and coal washing.

Installation and operation instructions of knife gate valve

1.？ Before installing the knife gate valve, check the valve cavity and sealing surface, and no dirt or sand particles are allowed to adhere;

2.？ Bolts at all connection parts shall be tightened evenly;

3.？ Check that the packing part should be compacted to ensure the tightness of the packing and the flexible opening of the gate;

4.？ Before installing the valve, the user must check the model and connection size of the valve and pay attention to the flow direction of the medium to ensure that it meets the requirements of the valve.

5.？ When installing the valve, the user must reserve the necessary space for the valve drive;

6.？ The wiring of the driving device shall be carried out according to the circuit diagram;

7.？ Knife gate valves must be maintained regularly, and collision and extrusion are not allowed at will, so as not to affect the sealing.

The above is about the working principle of knife gate valve, I hope it will help everyone!