• May , 15 2024

Valves are control components in pipeline fluid transportation systems, which are used to change the cross-section of the passage and the direction of medium flow. They have functions such as diversion, cut-off, regulation, throttling, check, diversion, or overflow pressure relief. Valves used for fluid control range from the simplest globe valves to various valves used in extremely complex self-c...

• May , 15 2024

01. Introduction to Control Valve A regulating valve is usually composed of an electric or pneumatic actuator and a valve body. There are two main types of straight stroke: straight single seat and straight double seat. The latter has the characteristics of high flow capacity, low imbalance force, and stable operation, so it is usually particularly suitable for situations with high flow rate, high...

• May , 15 2024

Internal and external leakage Valve sealing parts in three places: (1) opening and closing parts and the valve seat two sealing surfaces between the contact; (2) packing and stem and packing box with the place; (3) the valve body and the valve cover of the connection. One of the former leakage is called internal leakage, which is often referred to as the shut-off is not tight, it will affect the a...

• May , 15 2024

1.System of complete interchangeability Valve assembly using the complete interchangeable method, each part of the valve does not have to go through any trimming and selection can be assembled, assembled products that can meet the specified technical requirements. At this time, the valve parts should be processed in full accordance with the design requirements to meet the requirements of dimension...

• May , 15 2024

01 Basic knowledge of safety valves (1) Valve: A general term for mechanical products with movable mechanisms installed on pressure vessels, pressure equipment, and connecting pipelines to control the flow of media. (2) The nominal diameter of a valve refers to the nominal diameter of the pipeline at the connection between the valve and the pipeline and all other accessories, expressed in millimet...

• May , 15 2024

As an indispensable part of fluid control systems, the importance of gas valves is self-evident. Gas valves play a crucial role in fields such as chemical, petroleum, and natural gas transportation, as well as environmental protection, medicine, and food. They are responsible for controlling parameters such as gas flow, pressure, and flow to ensure the safe and efficient operation of the system. N...

• May , 15 2024

Knife gate valve is a type of valve that is always in close contact and sealed with the valve seat. Its principle is that there is a circular opening on the gate with a diameter size, which is opened and closed by the gate to make the circular opening on the gate separate and match the diameter. The advantage of this valve is that the valve body diameter has no grooves, the medium will not be bloc...

• May , 15 2024

A valve is a control component in a fluid conveying system, which has functions such as cutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves used in fluid control systems, from the simplest globe valves to various valves used in extremely complex self-control systems, have a wide variety of varieties and specifications. Valves...

• May , 15 2024

A valve is an accessory in a fluid conveying system that has functions such as cutoff, regulation, diversion, prevention of backflow, pressure stabilization, diversion, or overflow pressure relief. Common valves include globe valves, gate valves, ball valves, check valves, safety valves, and regulating valves. By understanding the types and structures of various valves, suitable valves can be sele...

• May , 15 2024

01. Basic structure of gate valve Gate valve is a type of valve that cuts off slurry by lifting the gate. It has the advantages of simple structure, wear resistance, good sealing, and easy operation. Its basic structure includes valve body, gate plate, packing, movable bearings, and manual device, etc. 02. Why does the gate valve need to return half a turn 1. The closing and opening of the gate va...