Ⅰ. Application of electric ball valve The electric ball valve is a rotary ball valve with a 90° rotation. It has excellent sealing performance, large flow capacity, small flow resistance coefficient, simple structure, convenient maintenance, and long service life. The valve body channel and the connecting pipe have the same diameter and form the same…
I. Throttle Valve II. Relief Valve
A globe valve refers to a valve in which the closing part (valve disc) moves along the center line of the valve seat. According to this movement form of the valve disc, the change in the opening of the valve seat is in a direct proportional relationship with the stroke of the valve disc. Since…
A plug valve is a rotary valve with a closing part or a plunger shaped structure. It realizes opening or closing by rotating 90 degrees to make the passage on the plug communicate with or separate from the passage on the valve body. The shape of its plug can be cylindrical or conical. In a…
Ⅰ.Leakage at the Packing of Soft Sealed Gate Valves 1.The packing gland is too loose Evenly tighten the nuts used to compress the packing gland. 2.Insufficient number of packing turns Increase the amount of packing. 3.Packing failure If the packing fails due to long term use or improper storage, new packing needs to be replaced….
Nonrising stem gate valves and rising stem gate valves are two common types of valves, and they have some obvious differences in structure, operation and application. The characteristics and differences of these two types of valves will be described in detail below. Structural Differences Operation Modes Application Scenarios
What key factors should we pay attention to when converting a manual valve into a pneumatic valve? I. Valve Compatibility Valve Type Matching: When selecting a pneumatic actuator, the primary task is to ensure that it matches the type of the existing manual valve. Different types of manual valves, such as gate valves, globe valves,…
I. Material Preparation The materials required for converting a manual gate valve into a pneumatic valve include: cylinder, air pipe, fasteners, tools, etc. II. Disassembly of the Manual Valve III. Installation of the Pneumatic Valve Install the Cylinder: Install the cylinder on the the manual valve, determining the installation direction and position of the cylinder…
Both manual ball valves and pneumatic ball valves are common types of valves, and they are widely used in industrial production. However, sometimes we need to convert a manual ball valve into a pneumatic ball valve to meet different working condition requirements. Now let’s take a detailed look at how to convert a manual ball…
Can a manual ordinary butterfly valve be refitted into a pneumatic butterfly valve? The answer is yes. I. Purchase a Pneumatic Actuator To convert a manual ordinary butterfly valve into a pneumatic butterfly valve, a pneumatic actuator needs to be installed. First, it is necessary to purchase a suitable pneumatic actuator according to the requirements…
In industries such as petroleum, natural gas, chemical engineering, and sewage treatment, slurry is a common fluid medium, which is characterized by high viscosity and large particles. In order to ensure the normal transportation and treatment of slurry, it is necessary to select appropriate valves. This article will introduce several common slurry valves and analyze…
Center Line Butterfly Valve The center line butterfly valve is also known as the center line soft sealing butterfly valve. Its most prominent structural feature is that the axis of the valve stem, the center of the butterfly disc, and the center of the valve body passage are in the same position. The center line…
A ball valve is a common fluid control valve that is widely used in the industrial field. The ball valve with a balance hole is a special design, which has some unique characteristics and application scenarios. This post will provide a comprehensive and detailed introduction to the ball valve with a balance hole. Structure of…
A brief guid to the installation and selection of check valves. About how to install and select check valves, you can refer to the following contents, which can give you a quick understanding and a concise operation reference for the installation and selection of check valves:
A check valve refers to a valve that automatically opens and closes，the valve disc relying on the flow of the medium itself, and is used to prevent the backflow of the medium. It is also known as a non-return valve, one-way valve, backflow valve, and backpressure valve. A check valve belongs to a type of…
The working temperature and nominal pressure ranges of common materials for valve bodies are as follows: The above are the main categories of common materials for valve bodies. Specifically, there are many different grades within each material category, and each grade is suitable for different pressure levels. Therefore, when selecting the material for the valve…
Are you curious about large diameter globe valves? Today, let’s uncover the mysterious veil of this “guardian” in the industrial pipeline system together! A large diameter globe valve, as the name implies, is a valve used to control the flow of fluids. Due to its relatively large diameter, it is often used in main pipelines…
Classification by Channel Direction Straight-through Globe Valve The inlet and outlet channels of the medium are in the same direction, forming an angle of 180°. The degree of destruction of the flow state is relatively small, and the pressure loss through the valve is relatively small. Direct-current Globe Valve The valve stem and the channel…
Overview of Advantages As a fluid control device, the butterfly valve has numerous advantages due to its unique structure and design. Its main advantages include: Disadvantages and Challenges Although small actuators have significant advantages in providing convenient operation for butterfly valves, they also have some drawbacks. One of them is that they may not be…
As a key component in fluid control systems, valves are widely used in various industrial fields. With the continuous development of science and technology, the valve industry is also constantly innovating and progressing. Today, let’s explore the advanced technologies and innovation trends in the valve industry. I. Technological Innovation Leads Industry Development. In the valve…
When selecting a valve, certain steps and criteria need to be followed. In terms of the basis for valve selection, factors such as the purpose of the valve, the operating conditions, the control mode, the properties of the working medium, the requirements of the fluid characteristics, the installation dimensions, and the external dimensions need to…
In sewage lift pumping stations, the selection of valves is of vital importance. The following are five commonly used types of valves, which play a crucial role in the sewage treatment process:
Valves are key components in pipeline systems, responsible for controlling the flow rate and direction of fluids. Today, let’s talk about the installation and cleaning of valves. Installation Requirements: Valve installation needs to comply with relevant regulations to ensure the correct flow of the fluid medium and avoid leakage or performance degradation caused by upside-down…
Valves, an important component in the field of fluid control, have a wide variety of types and extensive applications. They are like the guardians of fluid systems, precisely regulating the flow of various media. So, exactly how many types of valves are there? Today, let’s enter the world of valves and explore their diverse classifications….