WATO

News Center

09-28

How to clean and maintain the electric valve?

Electric valve is an important part used in engineering pipeline, which plays the role of opening and closing or regulating flow. Different valves can be selected according to different requirements, with various materials, suitable for water, natural gas, acid and alkali media, etc. Different materials can be selected for different media. There are many ways to operate the valve. In the era of automation, electric valves are used more in pipelines. They can be operated remotely, connected with electrically controlled switches, or regulated or explosion-proof according to working conditions.

How to clean and maintain the electric valve?

09-02

Buy pneumatic valve should pay attention to what

Valve actuated by means of constricted air. Pneumatic valve procurement needs to understand the specifications, categories, pressure to meet the procurement request approach, in the current market economy environment is not perfect. Therefore, pneumatic valve manufacturers-automatic control technology in order to provide excellent products, under the concept of unified design of pneumatic valves.

Buy pneumatic valve should pay attention to what

08-26

Learn about the application field of electric valves

Electric valves are generally composed of electric actuators and valves. The electric valve uses electric energy as power to drive the valve through the electric actuator to complete the switching action of the valve. So as to reach the purpose of the switch of the pipeline medium. Solenoid valve is a variety of electric valve; it uses the magnetic field generated by the electromagnetic coil to pull the valve core, thereby changing the on-off of the valve body, the coil is de-energized, and the valve core is backed by the pressure of the spring.

Learn about the application field of electric valves

08-17

Specific introduction of electric valve maintenance method

With the development of social economy, the use of electric valve TCN-100 is more and more widely, in the pipeline used in a wide variety of products, different structures, and easy to damage the pipeline accessories, the maintenance of each product, should be carried out according to the specific structure.

Specific introduction of electric valve maintenance method

08-12

Introduce the performance of electric control valve

Electric conditioning valve is an important performance unit instrument in industrial automation process control. With the increasing degree of automation in industrial areas, it is being used more and more in various industrial production areas. Compared with the traditional pneumatic conditioning valve has obvious advantages: electric conditioning valve energy saving (only in the operation of electricity consumption), environmental protection (no carbon emissions), the device is fast and convenient (no need for complex pneumatic pipeline and air pump operation station).

Introduce the performance of electric control valve

08-04

Summarize the advantages and disadvantages of the use of various valves

Gate valve refers to the valve in which the closing member (gate) moves along the straight direction of the channel axis. It is primarily used as a cut-off medium on the pipeline, I .e. fully open or fully closed. In general, the gate valve can not be used as a conditioning flow. It can be applied to low temperature pressure can also be applied to high temperature and high pressure, and according to the different raw materials of the valve. But the gate valve is generally not used to transport mud and other media in the pipeline.

Summarize the advantages and disadvantages of the use of various valves

11-25

Several anti-corrosion methods for valve parts

As we all know, the corrosion damage of metal has a considerable impact on the effect period, reliability and service life of the valve. The effect of mechanical and corrosion factors on the metal greatly increases the total amount of wear to the touch. Valve in the operation process, the friction of the appearance of the total amount of wear. During the operation of the valve, the appearance of friction causes wear and damage as a result of simultaneous mechanical effects and chemical or electrochemical interactions between metals and the environment. For the valve, the working climate conditions of the pipeline clutter; oil, natural gas and oil layer water and other media in the presence of hydrogen sulfide, carbon dioxide and certain organic acids to the metal appearance of the damage increased, thus quickly lost the ability to work.

Several anti-corrosion methods for valve parts

11-07

Introduction to the distinction between open-stem gate valves and dark-stem gate valves

WATO Wuhan Weituo Fluid Equipment Control Equipment Co., Ltd Gate valve (gate valve) is an opening and closing parts of the gate, the direction of movement of the gate and the direction of the fluid perpendicular to the gate valve can only be fully open and fully closed, can not be adjusted and throttling. The gate valve is sealed by the contact between the valve seat and the gate. Usually, the sealing surface is surfacing with metal materials to increase wear resistance, such as surfacing 1Cr13, STL6, stainless steel, etc. Domestic production of gate valve manufacturers more, the connection size is mostly not uniform. Mainly divided into the following categories: 1, according to JB/T2203-1999 "gate valve structure length" production of the mechanical department standard valve; 2, according to GB/T12221-2005 "metal valve structure length" production of national standard valve. 3. American standard valves produced according to ASME B16.10-2009 "face-to-face and end-to-end dimensions of valves. Gate valve according to the structure of the stem can be divided: 1 stem gate valve: the stem nut on the bonnet or bracket, when opening and closing the gate, use the rotating stem nut to realize the lifting of the stem. This structure is beneficial to the lubrication of the valve stem, and the degree of opening and closing is obvious, so it is widely used. 2 Dark rod gate valve: The stem nut is in the valve body and is in direct contact with the medium. When opening and closing the gate, it is realized by rotating the valve stem. The advantage of this structure is that the height of the gate valve always remains unchanged, so the installation space is small, suitable for large diameter or limited installation space of the gate valve. This structure is equipped with an opening and closing indicator to indicate the degree of opening and closing. The disadvantage of this structure is that the valve stem thread not only cannot be lubricated, but also directly accepts the erosion of the medium and is easily damaged. The main difference between bright stem gate valve and dark stem gate valve: 1. The lifting screw of the dark rod flange gate valve only rotates without moving up and down. Only a rod is exposed. The nut is fixed on the gate. The gate is lifted by the rotation of the screw without visible gantry. The lifting screw of the open rod flange gate valve is exposed. The nut is tightly attached to the handwheel and is fixed (does not rotate or move axially). The gate is lifted by rotating the screw, the screw and the gate only have relative rotational movement without relative axial displacement, and the appearance is a gate-shaped bracket. The dark rod valve cannot see the lead screw, while the bright rod can see the lead screw. 3. When the valve is switched on and off, the steering wheel and the valve stem are connected together and relatively immobile. It is opened and closed by the valve stem rotating at a fixed point to drive the valve clack up and down. The open stem valve raises or lower the disc through the threaded drive between the stem and the steering wheel. To put it simply, the open stem valve is a valve disc that moves up and down together with the valve stem, and the steering wheel is always at a fixed point.

10-30

Butterfly Valve Replacement Gate Valve Which Factors to Consider

WATO Wuhan Weituo Fluid Equipment Control Equipment Co., Ltd In recent years, the form of gate valve as a tool to control the amount of water and the direction of water flow has also changed. In the past, the commonly used flashlight dual-purpose gate valve was gradually replaced by flashlight dual-purpose butterfly valve. The butterfly valve has the advantages of small size, light weight, convenient installation and small resistance coefficient. Although the traditional gate valve is not easy to leak, but the volume is large; especially the large diameter gate valve, large and bulky, installation and disassembly are not convenient; more importantly, due to the large volume, resulting in an increase in the area of the pump room, the project cost increase. Butterfly valve according to the structure can be divided into offset plate, vertical plate, inclined plate and lever type. According to the sealing form can be divided into more sealed type and hard seal type two. Soft seal type generally uses rubber ring seal, hard seal type usually uses metal ring seal. Butterfly valve installation and maintenance should pay attention to the following matters: 1. During installation, the valve flap should be stopped in the closed position. 2. The opening position should be determined according to the rotation angle of the butterfly plate. 3. For butterfly valve with bypass valve, the bypass valve should be opened before opening. 4, should be installed according to the manufacturer's installation instructions, the weight of the butterfly valve, should be set up a solid foundation.

10-30

About the valve corrosion protection introduction

WATO Wuhan Weituo Fluid Equipment Control Equipment Co., Ltd The valve is a control component in the fluid delivery system, with the functions of cut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves for fluid control systems, from the most simple cut-off valve to a very complex automatic control system used in a variety of valves, its varieties and specifications quite a wide range. The corrosion of the valve is usually understood as the damage of the metal material of the valve under the action of chemical or electrochemical environment. Since the "corrosion" phenomenon occurs in the spontaneous interaction between the metal and the surrounding environment, how to isolate the metal from the surrounding environment or use more non-metallic synthetic materials is the focus of anti-corrosion. Valve body, including the valve cover, occupy most of the weight of the valve, but also in regular contact with the medium, so the selection of valves, often starting from the body material. The anti-corrosion of the valve body is mainly the correct selection of materials. Although the anti-corrosion information is very rich, it is still not easy to choose it properly, because the corrosion problem is very complicated. For example, sulfuric acid has great corrosion to steel when the concentration is low, and when the concentration is high, it makes steel produce passivation film, which can prevent corrosion. Hydrogen only shows strong corrosion to steel at high temperature and high pressure, and chlorine has little corrosion performance when it is in a dry state, when there is a certain humidity, the corrosion performance is very strong, and many materials can not be used. The difficulty of selecting the valve body material is that it can not only consider the corrosion problem, but also consider the pressure and temperature resistance, whether the economy is reasonable, whether it is easy to buy and other factors. So it must be attentively. The corrosion of the valve body is no more than two forms, namely chemical corrosion and electrochemical corrosion. Its corrosion rate depends on the temperature, pressure, chemical properties of the medium and the corrosion resistance of the valve body material. Corrosion rate can be divided into six: 1. Complete corrosion resistance: the corrosion rate is less than 0.001mm/year; 2. Extremely corrosion resistant: corrosion rate 0.001 to 0.01mm/year; 3. Corrosion resistance: corrosion rate 0.01 to 0.1mm/year; 4, still corrosion resistance: corrosion rate of 0.1 to 1.0mm/year; Poor corrosion resistance: the corrosion rate is 1.0 to 10mm/year; 6. No corrosion resistance: the corrosion rate is greater than 10mm/year. The second is to take lining measures, such as lead lining, lining aluminum, lining engineering plastics, lining natural rubber and various synthetic rubber. If the media conditions permit, this is a saving method. And then in the case of pressure, temperature is not high, with non-metal valve body material, often can be very effective in preventing corrosion. The outer surface of the valve body is also subject to atmospheric corrosion, and general steel materials are protected by paint.

< 1 2 3 > 跳转到页

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

Wuhan Weituo Fluid Control Equipment Co., Ltd

Address: 1706, Building D, Wuhan Living Room, No.8 Hongtu Avenue, Dongxihu District, Wuhan City

Telephone:0086-18942929031 0086-18571829295

Landline:0086-027-83612831

Fax: 0086-027-83612830

E-mail:watosong@watovalve.com

Website:www.watoer.com

WeChat

Copyright © Wuhan Weituo Fluid Control Equipment Co., Ltd

Powered by：300.cn Privacy Agreement