Installation instructions for water supply control valves, water supply gate valves, water meters, p

1.The valve must be mounted vertically on the horizontal pipe with the stem facing up.

2.The installation must be carried out in the direction indicated by the arrows in the diagram.

3.When flushing the pipeline, appropriate measures should be taken to avoid the disc and seat from being stuck due to stolen goods and reducing the service life.

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Chaoda, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Open the water pressure reducing valve to adjust the outlet pressure, adjust it with a slotted driver, rotate the outlet pressure of the screwdriver clockwise to increase, on the contrary, the outlet pressure decreases, and adjust with the pressure gauge until the outlet pressure reaches the required value.

The water pressure reducing valve plays a certain role in the pipeline, in order to prevent the harm of water hammer, a small expansion tank can also be installed to prevent damage to the pipeline and valve, the filter must be installed in front of the inlet pipe of the pressure reducing valve, and the expansion tank must be installed behind the outlet pipe of the water pressure reducing valve.

The tap water pressure reducing valve is to control the opening of the opening and closing parts in the valve body to adjust the flow of the medium, reduce the pressure of the medium, and at the same time adjust the opening of the opening and closing parts with the help of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range, and spray cooling water in the valve body or behind the valve to reduce the temperature of the medium, this valve is called pressure and desuperheating valve.

The tap water pressure reducing valve is characterized by keeping the outlet pressure and temperature values within a certain range when the inlet pressure is constantly changing. The pressure reducing valve is a necessary accessory of the pneumatic control valve, which is mainly used to reduce the pressure of the air source and stabilize it to a fixed value, so that the control valve can obtain stable air source power for regulation and control.

Water supply gate valves, water meters, pressure reducing valves, how to install.

Water supply gate valve, water meter, pressure reducing valve, how to install your hello pro, 1If the water pressure reducing valve itself does not have its own pressure gauge, a pressure gauge should be installed on the pipe before and behind the valve. 2. If the medium contains impurities, it may block the valve hole, install a pipeline filter about 1 meter before the inlet of the tap water pressure reducing valve, and the number of filters is best controlled above 20 meshes.

3.In order not to affect the use effect of pressure reduction, and at the same time considering the convenience of installation and maintenance, the tap water pressure reducing valve is generally installed on the horizontal pipeline, and the bellows pressure reducing valve is reversed. 5.

In order to prevent accidents of pressure overpressure behind the valve, a safety pressure relief stool vibrillator valve should be installed about 4 meters from the outlet end of the tap water pressure reducing valve just in case. 6. Before installation, we must pay attention to the direction of the arrow hole on the valve body, and the arrow points to the direction of the medium flow, and cannot be reversed, otherwise the pressure reducing valve will fail and cause an accident! I hope I can help you!

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1.When the valve is used in gas or low viscosity liquid media, usually the ZZY type self-operated pressure regulating valve is installed upright on the horizontal pipe, and is installed upside down or obliquely when the position space does not allow.

2.To facilitate on-site maintenance and operation, there should be appropriate space around the regulator.

3.When the medium is clean gas or liquid, the pre-valve filter can not be installed.

4.If the diameter of the regulator is too large (DN 100), there should be a fixed bracket When it is confirmed that the medium is clean, piece 3 can not be installed.

5.When the location is not allowed, the bypass valve (manual) can be omitted (we do not recommend it).

6.After the valve group, the user can choose check valve, safety valve, etc. according to the needs.

7.When the valve is used in steam or high viscosity liquid medium, usually the ZZY self-operated pressure regulating valve is installed upside down on the horizontal pipe, and the condenser (self-operated type for steam) should be higher than the actuator of the pressure regulator and lower than the front and rear of the valve. The condenser should be filled with cold water before use, and then once every 3 months.

1.The pressure point should be taken at the appropriate position of the pressure regulating valve, and the pressure regulation in front of the VTON self-operated control valve should be greater than 2 times the diameter of the pipeline, and the pressure regulation after the valve should be greater than 6 times the diameter of the pipeline.

2.According to the calculated diameter, the self-operated valve can be smaller than the pipe diameter, while the Vton globe valve, shut-off ball valve, bypass valve and filter cannot be smaller than the pipe diameter.

3.To facilitate on-site maintenance and operation, there should be appropriate space around the regulator.

4.When the medium is clean gas or liquid, the pre-valve filter can not be installed.

Self-operated pressure regulating valve installation instructions.

The self-operated pressure regulating valve does not need other external energy such as power supply and air source, and only relies on the medium's own energy to drive, which is energy-saving and environmentally friendly, easy to use, and can be put into automatic operation after the installation is completed.

Self-operated pressure regulating valve, whether it is properly installed, has a vital role in the future service life, and even if it is not installed properly, it will also cause damage to the self-operated pressure regulating valve. The detailed installation steps of VTON self-operated control valve are for reference.

1. It is very important and necessary to read the product manual of VTON self-operated control valve, check whether the product meets your own requirements, and if all parameters are consistent with what you want, you can prepare for installation.

2. Before taking over, it is necessary to clean the pipeline under a certain pressure, generally around the right, to ensure that there is no rust slag, metal powder and sealing material residue in the pipeline.

3. If there are impurities in the medium, and the impurities affect the work of the valve, it is necessary to install a filter screen in the pipeline.

4. When taking over the sealing material, it is necessary to pay attention not to use it excessively, as the excessive sealing material may enter the working cavity of the valve, which will affect the normal operation of the self-operated pressure regulating valve.

5. The installation environment of VTON self-operated pressure regulating valve should be as spacious as possible, so as to facilitate later maintenance and replacement.

6. Special precautions for VTON self-operated pressure regulating valve when used for steam:

The self-operated pressure regulating valve valve is used on the steam pipeline, and it has only been put into use for just one or two months, and the user has reported for repair. When I went to the scene, a large amount of steam was discharged from the exhaust hole of the membrane head of the regulating valve, and the noise was extremely loud and amazing. The cause of the accident was obviously that the steam did not condense, and directly entered the membrane head, burning out the diaphragm.

For steam pipeline self-operated pressure regulating valve, a condensing tank must be added between the actuator and the pipeline during installation, and the steam cannot be allowed to enter the actuator membrane head, the regulating valve must be installed head down, and the condensation tank should be higher than the membrane head.

Look at the on-site installation method, ask the on-site instrument personnel, these are all right, so what causes it? It's puzzling. Later, I carefully questioned an operator, and I accidentally found out:

After the valve was installed and put into use, the copper pipe joint between the condensate tank and the membrane head has been leaking intermittently. It turned out that the water leakage caused the water in the condensate tank to slowly leak, and the steam entered the membrane head and burned out the diaphragm.

Self-operated control valve installation method:

1. The general regulations for the installation of self-operated control valves are: before installation, the model and specifications should be carefully checked to see if they meet the design requirements.

2. Check whether the valve stem and valve disc are flexible, and whether there is jamming and skewing. The disc of the self-acting control valve must be closed strictly. The strength and tightness of the valve shall be tested, and the unqualified shall not be installed. When installing, it should be installed according to the design requirements.

3. Installation** is as follows:

ZZYP self-operated pressure regulating valve is composed of valve body, valve seat, valve core, balance spring and other components, which is a kind of valve that does not require external energy and uses the pressure change of the regulated medium itself to automatically adjust, and is an energy-saving product that introduces the controlled medium into the actuator to produce force according to the mechanical principle, and controls the up and down displacement of the valve core elements to achieve automatic adjustment, and the constant pressure or pressure reduction in front of or after the valve. The biggest feature of this product is that it can work in places without electricity and gas, and the pressure setting value can be adjusted at will during operation. It adopts the characteristics of fast opening flow, sensitive action and good sealing performance, and is widely used in the automatic control of gas, liquid, steam and other medium pressure in various industrial equipment such as petroleum, chemical industry, power station, light industry, printing and dyeing.

There are two kinds of actuators for this series of products: film type and piston type; The forms of action are: pressure adjustment before the valve (pressure relief and pressure holding type), pressure adjustment after the valve (pressure reduction and stabilization type); Comes with an insulated condensate tank that can be used at 350 temperatures.

According to different working conditions, different spool structure types and different actuators can be selected to achieve the best control effect.

You can consult Shanghai Kelida Valve Factory, specializing in the production of control valves, with self-operated control valves as the main products.

Yours is in front of the control valve or behind the control valve?