zfvalve

Dynamic balancing valve is divided into two kinds: flow (flow dynamic control valve) and pressure difference (self-operated pressure difference control valve), which are selected according to actual demand. Dynamic balancing valve is used to solve the branch differential pressure balance problem caused by the frequent operation of temperature control valves at each end. The difference between static and static is that the static balance valve (also known as digital lock balance valve) needs to be locked after one-time debugging by a special intelligent instrument to control the total water volume of the system within a reasonable range, but every change needs to be re-locked by the instrument. The dynamic self-reliance is not so troublesome, depending on the pipe. The pressure change of the adjusted medium in the network can automatically keep a constant flow rate, which is a little cheaper in the static engineering cost.

Principle of dynamic balancing valve: By changing the flow area of the spool of the balancing valve to adapt to the changes before and after the valve, so as to achieve the purpose of flow control.

Dynamic balancing valve can be installed on a water supply pipe or the return pipe. When the working pressure of the system fluid exceeds the allowable working pressure of the radiator, the dynamic balancing valve should be installed on the water supply pipe for safety.

Static balancing valves, also known as balancing valves, manual balancing valves, digital lock balancing valves, double-position regulating valves, are used to solve the problem of branch pressure differential balance in pipeline design.

The working principle of the static balance valve is to change the flow resistance through the valve by changing the clearance (opening) between the valve core and the seat in order to achieve the purpose of regulating the flow. Its object of the action is the resistance of the system, which can distribute the new water according to the proportion calculated by the design. Each branch increases or decreases in proportion at the same time, and still satisfies the requirements. The flow demand of partial load under pre-climate needs plays a role of heat balance.

Static balancing valve can be installed on a water supply pipe or the return pipe. Generally, it should be installed on the return pipe. Especially for high-temperature loop, in order to facilitate debugging, it should be installed on the return pipe. The supply (return) pipe with a balance valve does not need to install the stop valve.

Whether static balancing valve or dynamic balancing valve, they are impedance components, especially dynamic balancing valve, which requires the system to consider the additional head caused by the balancing valve when selecting and distributing pumps.

 

ZECO is one of the most professional control valve manufacturers in china , and we have been devoted to produce control valve china for many years. If you want to know more details or want a quotation, just feel free to contact us!

 

The radiator thermostatic balancing valve is a self-operated constant temperature flow control valve mounted on the radiator. It is composed of a thermostatic valve body and a temperature regulating device for air temperature sensing. The principle of action is that the opening of the thermostatic valve body is automatically controlled to change the amount of hot water passing through the radiator. When the room temperature is lower than the set temperature value, the radiator balancing valve automatically opens (or gradually increases) the radiator to heat the room until the room temperature reaches the set value. When the temperature of the room rises, the temperature sensor pack expands, causing the valve to gradually close (or close), and the heat sink will reduce the heating speed (or stop heating). Simply put, the main function is energy saving and comfort. However, many ordinary customers only use ordinary temperature control valves without a temperature pack, which cannot be automatically turned on or off. It is recommended that everyone adjust the indoor temperature and ensure that the indoor temperature is always at the set temperature by adjusting the hot water flow into the radiator. This thing is necessary for today's energy-efficient buildings. Designing houses and public buildings is a form of radiator heating. At this stage, it is necessary to use a three-way connection with a temperature control valve.

 

ZECO is one of the most professional control valve manufacturers in china , and we have been devoted to produce valve china for many years. If you want to know more details or want a quotation, just feel free to contact us!

Hydraulic balancing valve, also known as automatic balance valve, flow control valve, flow controller, dynamic balance valve, automatic flow valve. Hydraulic balance valve is an intuitive and simple flow control device. The application of hydraulic balancing valve in pipeline network can directly set the flow rate according to the design. The valve of automatic balancing valve can automatically eliminate the flow deviation caused by residual pressure head and pressure fluctuation of pipeline under the action of water. No matter how the system pressure changes, the set flow rate remains unchanged. These hydraulic balancing valve functions(automatic flow valve) make the flow regulation of pipeline network complete at one time, and make the work of network regulation simple flow distribution, effectively solve the hydraulic imbalance of pipeline network.Hydraulic balancing valve is a new type of regulating valve. Compared with manual control valve, it has the advantage of automatic regulation. Compared with the electric control valve, the advantage of the hydraulic balancing valve is that it does not need external power. The application practice has proved that in closed water circulation system (such as hot water heating system, air conditioning refrigeration system), the correct use of hydraulic balance valve can easily realize the flow distribution of the system, realize the dynamic balance of the system, greatly simplify the commissioning work of the system, and stabilize the working state of the pump. Therefore,hydraulic balance valve (automatic flow valve) has a broad application prospect in heating and air conditioning engineering.

 

ZECO is one of the most professional top 10 valve manufacturers in china, and we have been devoted to produce control valve china for many years. If you want to know more details or want a quotation, just feel free to contact us!

Dynamic flow balancing valves are also known as self-operated flow control valves, self-operated balancing valves, constant flow valves, and automatic balancing valves. It automatically changes the drag coefficient according to changes in system operating conditions. Within a certain pressure difference range, the flow rate can be effectively controlled to maintain a constant value, that is, when the pressure difference between the front and the back of the valve is increased, the flow can be kept not increased by the automatic closing action of the valve. Conversely, when the pressure difference is reduced, the valve automatically opens and the flow remains constant. However, when the pressure difference is less than or greater than the normal working range of the valve, it cannot provide an additional pressure head after all, and the flow rate of the valve to the fully open or fully closed position is still lower or higher than the set flow rate.

Auto balancing valve , also known as dynamic flow balancing valve, flow control valve,dynamic balancing valve, constant flow dynamic balancing valve. The automatic flow balance valve controls the flow through the valve by automatically changing the overflow area of the spool and adapting to the pressure changes before and after the valve. Its flow rate can be set at the production plant, or it can be set on site or electronically adjusted as required.

The automatic flow balancing valve is actually a constant flow valve that keeps the flow constant. Its function is: when some terminal equipment such as fan coil unit, fresh air unit and other control valves in the system adjust with the change of air conditioning load, resulting in the change of pressure in the pipeline network, so that the flow of other terminal equipment remains unchanged, still consistent with the design value.

According to the different flow setting modes, automatic flow balancing valves can be divided into two categories: fixed flow type and field set flow type.

Advantages and characteristics

Dynamic flow balancing valve enables the valve bile to change according to the pressure difference of the water system from time to time, ensuring that it will not exceed the original set water flow and absorb excessive pressure difference, thus realizing the automatic balance of pressure and flow of the whole water system. Therefore, using it has the following benefits.

For owners and construction units:

(1) There is no need for system debugging: it can save you a lot of time and shorten the completion date;

(2) There is no need to install the same process management: it can increase the area and space used for you, save installation and material costs;

(3) Easy to use: the water system balance will not be affected by the phased completion of the project installation or the phased use of the equipment;

(4) Convenient change: When water systems in some areas need to be redesigned, the design and balance of water systems in other areas will not be affected.

(5) Reduce power consumption: As the whole water system is balanced, the refrigeration units (boilers, heat exchangers) and pumps are guaranteed to operate in the best working state, which has obvious energy-saving effect;

(6) Reduce wear and waste: to ensure that water flow will not exceed the original design, to ensure the durability of all equipment, to avoid excessive flow caused by copper pipe loss;

(7) Improving safety: Because the flow balance of water system is automatic, the possibility of destructive regulation is eliminated.

(8) For the designer, the workload is reduced: there is no need to calculate the resistance of the whole pipeline to accelerate the design speed;

(9) It is possible to use the different program system boldly: save pipes, corresponding materials and installation costs, and transfer the work of the balancing hydraulic system to the dynamic flow balancing valve to complete. Many other troubles caused by unbalanced water systems can be avoided.

Working principle

Highly controlled and efficient building environment requires system design engineers to endow novel design concepts in their design. Because of the increasing use of various kinds of fluid control systems, especially the combination of temperature control devices and regional control functions, the use of static balance valves is out of date.

The automatic balancing valve combines innovative design and provides a complete solution to the hydraulic balancing system with maximum flexibility. The original design of the automatic balancing valve is a balancing valve specially designed for refrigeration and heating systems. The use of automatic control valve gallbladder ensures that the flow rate is the designed flow rate and remains constant even in the case of pressure fluctuation.

ZECO is one of the most professional top 10 valve manufacturers in china, and we have been devoted to produce valve group for many years. If you want to know more details or want a quotation, just feel free to contact us!

The differential pressure control valve working principle Balance valve is a dynamic and static balancing valve under hydraulic conditions. Such as static balance valve, dynamic balance valve.

Valve body material: cast iron, cast steel,

Work pressure is 0.6-4.0 MPA.

The working temperature is - 5 C - 350 C.

Valve caliber DN15-DN300,

Connection mode: flange, internal thread,

Manufacturing standard: national standard.

How does a balancing valve work?

Balancing valve is a special function valve. It has good flow characteristics. Besides, it has valve opening index, opening locking device and pressure measuring valve for flow measurement. By using special intelligent instrument, the flow value flowing through the balance valve can be directly displayed by inputting the valve type and opening value according to the measured pressure difference signal. As long as the balance valve with appropriate specifications is installed in each branch and user's entrance and debugged once with the special intelligent instrument, the flow rate of each user can reach the set value.

Static balancing valves are also called balancing valves, manual balancing valves, digital locking balancing valves, double-position regulating valves, etc. It is through changing the clearance between the spool and the seat (opening), to change the flow resistance through the valve in order to achieve the purpose of regulating flow. Its object of action is the resistance of the system, which can distribute the new water in proportion to the design calculation, increase and decrease the branches in proportion at the same time, still meet the flow demand of part of the load under the current climate needs, and play the role of heat balance. Dynamic balancing valves are divided into dynamic flow balancing valves, dynamic differential pressure balancing valves, self-operated differential pressure control valves and so on.

Dynamic flow balance valve is also called self-operated flow control valve, self-operated balance valve, constant flow valve, automatic balance valve, etc. It automatically changes the drag coefficient according to the change of system working condition (differential pressure). In a certain range of pressure difference, the flow through can be effectively controlled to maintain a constant value, that is, when the pressure difference before and after the valve increases, the flow through the valve can be maintained by the action of automatic closing small. On the contrary, when the pressure difference decreases, the valve opens automatically and the flow rate remains constant. However, when the pressure difference is smaller or larger than the normal working range of the valve, it can not provide additional pressure head after all. At this time, the flow rate of the valve to the full open or closed position is still lower or higher than the set flow rate can not be controlled.

Dynamic differential pressure balancing valve, also known as self-operated differential pressure control valve, differential pressure controller, constant voltage variable synchronizer, differential pressure balancing valve, etc. It uses differential pressure to adjust the opening of the valve, and uses the change of pressure drop of the valve core to compensate for the change of pipeline resistance, so as to keep the differential pressure basically unchanged when the working condition changes. The valve working principle is that in a certain flow range, it can effectively control the constant pressure difference of the controlled system, that is, when the pressure difference of the system increases, it can ensure that the pressure difference of the controlled system increases by automatically closing the valve. When the pressure difference decreases, the valve opens automatically, and the pressure difference remains constant. The self-operated pressure difference control valve has an automatic plug closing state within the control range. The pressure difference between the two ends of the valve exceeds the preset value. The plug opens automatically and adjusts the opening automatically under the action of the pressure sensitive film to keep the pressure difference between the two ends of the valve relatively constant.

 

ZECO is one of the most professional control valve manufacturers china and we have been devoted to produce control valve china for many years. If you want to know more details or want a quotation, just feel free to contact us!

As we all know, quality is the life of an enterprise. ZECO and every employee of ZECO attach great importance to quality requirements because of its corporate culture. We have developed an excellent quality process flow, which can guarantee excellent qualified rate from the material analysis, physical performance test, aging treatment before processing, dimension test after processing, the thickness after spraying treatment, adhesion test after assembly, performance test and the final inspection after delivery. Each quality control valve has its unique code and can be traced back to the source of any spare parts of each valve and to the person who processes them. We have a lot of quality control certificates and every year we produce all kinds of valves that are tested by the national inspection center. Now, we are one of the best water control valves manufactures in China. In line with the policy of winning customer satisfaction with quality, we try our best to join the world's best quality and best performance water valve brands. Looking forward to the customer's witness.

 

ZECO is one of the most professional control valve manufacturers in china , and we have been devoted to produce china control valve for many years. If you want to know more details or want a quotation, just feel free to contact us!

Basic information

 

This sustaining valve is opened to prevent the pipeline and equipment from being damaged due to overpressure when the pressure in the water supply pipeline exceeds the set pressure of pressure relief. The valve closes automatically when pressure drops to the set value. 

 

 

 

Features

 

1. Accurate Pressure Control

 

2. Fast Opening to Maintain Line Pressure

 

3. Slow Closing to Prevents Surges

 

4. Completely Automatic Operation

 

Principle

 

Inlet pressure water enters the lower cavity of the pilot valve diaphragm from the guide valve when the pressure in the pipeline exceeds the set pressure of the guide valve to make its pressure increase to open the guide valve, the main valve control room outwards drain under the effect of the inlet pressure water to open the main valve, it starts to discharge pressure. When the pressure in the pipeline drops to the set pressure, the pressure in the lower cavity of the guide valve diaphragm decreases, causing the guide valve closed. This results in increased water pressure from the guide pipe to the pilot valve, then to the main valve control room. The main valve plate closes and begins to hold pressure. 

 

Installation and Commissioning

 

The pressure relief(sustaining) valve supports horizontal and vertical installation but should pay attention to the inlet and outlet direction of valve body water when installing. In general, one fire water supply system can only install one pressure relief valve . Within the operating pressure range of the spring specified in the nameplate, the opening pressure can be adjusted by rotating the adjusting screw to change the spring compression amount. For specific use, please consult ZhengFeng Valve Group.

The double plate china wafer check valve is used for the pure pipeline, industry, environmental protection, water treatment, high-rise building water supply, and drainage pipeline to prevent reverse flow of the medium. The disc check valve adopts wafer type, butterfly disc is two semicircular and adopts spring forced to reset. The sealing surface can be used as body welding wear resistant material or rubber lining.

 

 

 

Its disc adopts dual type, can close quickly by itself under the action of spring force, and because of the action of fast closing, can effectively prevent the backflow of the medium, sealing performance is good. The disc type check valve is a universal single flow valve that can be easily installed between two flanges. For disc check valves, we have ductile iron and stainless steel for various operating conditions. 

 

 

 

Stainless steel castings and copper casting, we hold the material source, starting from the analysis before casting furnace, to examine again, finally to the processing and testing, every step of the process is to ensure that the product after consistent with our commitment to customers, and according to the stainless steel material, we can customize as material 316 and 316 l material or demand a higher material products. We believe that our products with a craftsman's spirit and quality will convince customers that Chinese brands are becoming better and better, instead of low-end products long ago.

To withstand high temperature, the metal seal must be used, but large leakage; For zero leakage, rubber seal must be used, but not high-temperature resistant. In order to overcome the contradiction of the double eccentric butterfly valve china, the triple offset butterfly valve was carried out.

 

 

 

The structural characteristics of the double eccentric eccentric axis of the stem position at the same time, make the butterfly plate type sealing face of the cone axis deflection in the cylindrical axis of ontology, that is to say, after the triple eccentric, butterfly plate sealing section is no longer true circle, but the ellipse, and so the seal face shape asymmetry, tilt to the center line of the ontology, on the other side is parallel to the centerline of ontology. The biggest characteristic of the triple eccentric is fundamentally changed the seal structure and seal position is no longer, but the torque seal, namely not rely on the elastic deformation of the seat, but completely rely on the seat of the contact pressure to achieve sealing effect, thus solved the problem of metal seated zero leakage at a stroke, and because of the contact pressure and the medium is proportional to the pressure, resistance to high pressure high temperature is solved. Are abundant as producers of triple offset butterfly valve, our valves service life is long, the key is the beginning of the material and material technology progress, many new high-performance materials developed in recent years, also appeared many casting, welding, spray welding, painting, such as molding, sintering, composite and surface treatment of new technology and new technology and equipment. Paying attention to the information about material science and applying it to the valve in time is an important technical way to develop high performance and high parameter valve.

Double regulating valve working principle

 

Balance valve is a dynamic and static balancing valve under hydraulic conditions. Such as static balance valve, dynamic balance valve.

 

Valve body material: cast iron, cast steel,

 

Work pressure is 0.6-4.0 MPA.

 

The working temperature is - 5 C - 350 C.

 

Valve caliber DN15-DN300,

 

Connection mode: flange, internal thread,

 

Driving mode: manual and electric.

 

 

 

Manufacturing standard: national standard.

 

Balancing valve is a special function valve. It has good flow characteristics. Besides, it has valve opening index, opening locking device and pressure measuring valve for flow measurement. By using special intelligent instrument, the flow value flowing through the balance valve can be directly displayed by inputting the valve type and opening value according to the measured pressure difference signal. As long as the balance valve with appropriate specifications is installed in each branch and user's entrance and debugged once with the special intelligent instrument, the flow rate of each user can reach the set value.

 

 

 

Static balancing valves are also called balancing valves, manual balancing valves, digital locking balancing valves, double-position regulating valves, etc. It is through changing the clearance between the spool and the seat (opening), to change the flow resistance through the valve in order to achieve the purpose of regulating flow. Its object of action is the resistance of the system, which can distribute the new water in proportion to the design calculation, increase and decrease the branches in proportion at the same time, still meet the flow demand of part of the load under the current climate needs, and play the role of heat balance. Dynamic balancing valves are divided into dynamic flow balancing valves, dynamic differential pressure balancing valves, self-operated differential pressure control valves and so on.

 

Dynamic flow balance valve is also called self-operated flow control valve, self-operated balance valve, constant flow valve, automatic balance valve, etc. It automatically changes the drag coefficient according to the change of system working condition (differential pressure). In a certain range of pressure difference, the flow through can be effectively controlled to maintain a constant value, that is, when the pressure difference before and after the valve increases, the flow through the valve can be maintained by the action of automatic closing small. On the contrary, when the pressure difference decreases, the valve opens automatically and the flow rate remains constant. However, when the pressure difference is smaller or larger than the normal working range of the valve, it can not provide additional pressure head after all. At this time, the flow rate of the valve to the full open or closed position is still lower or higher than the set flow rate can not be controlled.

 

Dynamic differential pressure balancing valve, also known as self-operated differential pressure control valve, differential pressure controller, constant voltage variable synchronizer, differential pressure balancing valve, etc. It uses differential pressure to adjust the opening of the valve, and uses the change of pressure drop of the valve core to compensate for the change of pipeline resistance, so as to keep the differential pressure basically unchanged when the working condition changes. Its principle is that in a certain flow range, it can effectively control the constant pressure difference of the controlled system, that is, when the pressure difference of the system increases, it can ensure that the pressure difference of the controlled system increases by automatically closing the valve. When the pressure difference decreases, the valve opens automatically, and the pressure difference remains constant. The self-operated pressure difference control valve has an automatic plug closing state within the control range. The pressure difference between the two ends of the valve exceeds the preset value. The plug opens automatically and adjusts the opening automatically under the action of the pressure sensitive film to keep the pressure difference between the two ends of the valve relatively constant.