久久亚洲国产精品一区二区乌克兰 ,亚洲1卡一卡二卡三新区2022

The 2nd China (Wenzhou)Int'l Pump & Valve Show will be held in Wenzhou Int'l Con

Thu, 30 Mar 2023 15:08:44 +0800

2023 The 2nd China (Wenzhou)Int'l Pump and Valve Exhibition is scheduled to be held in Wenzhou Int'l Convention and Exhibition Center (No. 1 East Jiangbin Road, Lucheng District, Wenzhou City) from October 13 to 15, 2023

The second exhibition, with the theme of "digital intelligence enabling Co-creation and sharing" and the linkage of industrial chain, opens up the superior resources of China's pump and valve manufacturing base in one stop, takes digital transformation and intelligent industry as the empowerment topic, and displays the creativity of Wenzhou pump and valve and even China's pump and valve industry! This exhibition focuses on the new generation, new products and new technologies of famous enterprises in the pump valve and tube industry, which is an important platform to publicize the image and brand of pump and valve enterprises. This exhibition will organically combine the three links of exhibition, marketing and research. It is a grand event that truly tells the world that "Wenzhou is a city that manufactures pumps, pipes and valves". It is also another new business card that Wenzhou industry presents to the world!

Adhere to the concept of "internationalization", and invite foreign companies to participate in the event! Wenzhou International Pump and Valve Show is committed to boosting domestic pump and valve enterprises to "go out" and expand overseas markets; Create "look at the valve to see Wenzhou" to introduce ideas. The Organizing Committee takes multiple measures to set up a special foreign liaison department, maintains the "Overseas publicist Plan", and continuously invites international public relations figures and international professional buyers to visit and purchase through diplomatic and consular missions in China, oil and gas bureaus of oil and gas countries, industry ministries, international commercial associations, foreign terminal markets and exhibitions. Give full play to the advantage of "one hour from exhibition to factory" in Wenzhou, organize famous enterprises "branch venue" inspection activities. The exhibition site plans "guest of Honor zone (Belarus zone)", "foreign exchange zone", diplomatic and consular missions, etc., to build accurate and matched business negotiation opportunities for exhibitors, enterprises and international buyers.

Range of exhibits：

Valves and supporting products

Valve intelligent control system, actuator, etc

Pumps and supporting products

All kinds of pipes and fittings

Intelligent system, intelligent equipment, e

Overall scale

Exhibition area: 35,000 + m2

Number of booths: 1500+

Exhibitors: 600+

Professional audience: 30000+ person-time

Selection Guide Of A Knife Gate Valve

Sat, 22 Dec 2018 18:41:14 +0800

Knife gate valves may sell for different prices depending on the size, material and technology it has. You must consider carefully to choose.

Plumbing has been one of the most important aspects in any home, establishment, or industry. Most commonly, this is one of the most regarded parts of the construction, next to the structure. For plumbing, an important piece is always the valves that are being used. One of the most common types of valve in use with everyday plumbing is a knife gate valve. These valves are bi-directional valves or simply put valves that can allow fluids to flow inward or outward.

A knife gate valve is a simple mechanism consisting of a gate that goes up and down instead of turning to let the fluids flow through. One good thing about this valve is its design. It is not bulky unlike other valves and does not take much space in any plumbing system, aside from the knob to raise and lower the gate. Common installations for these kinds of valves are for fluids especially those that flow at quite a high rate of pressure. The industry can pretty much utilize these gate valves for any liquid it may carry, however, the right kind and size of valve has to be carefully considered in order to maximize the valve’s capacity and durability.

These valves are mostly made of either brass or stainless steel. Several companies though have their own technologies and designs in order to make them more efficient than the others. The good thing about this is that the valve can be used for a multitude of liquids, ranging from water to fuels like gasoline to chemicals. One of the important things to look for in selecting the proper valve is the shallowness of the valve seat. Since the gate’s design is to go up and down, if the liquids that flow through tend to bring in sediments or other debris, it may stay in the valve seat, causing the valve to close incorrectly, letting any liquid leak through. This may be bad especially for the operation of the entire system. It is best to look for the valve with the shallowest valve seat but can still seal the fluids in properly.

Another thing to look for with these valves is the size. These valves come in a range of sizes from the smallest ones at least being ? inch in diameter to really huge applications that can be 1 meter wide. Because of the versatility and compact form factor of the knife gate valve, it can be really used for any sized diameter and can carry a number of fluids that would pass through it.

With any application of course, it is always best to properly maintain these mechanisms as they convey an important role in a plumbing system. You may visit this page to know how to maintain a knife gate valve to better prolong the life of the gate valve. These valves may sell for different prices depending on the size, material and technology it has. It may come cheap or really expensive but it is always best to properly maintain them. Not only would it save time, it can save money as well.

5 Main Parts Of A Knife Gate Valve

Sat, 22 Dec 2018 18:37:36 +0800

Most of the time, a body of a knife gate valve is made from industrial grade stainless steel since this mechanism receives a lot of beating and has to withstand the elements, especially if it is exposed outside.

There are a lot of valves that can be used for different applications. Some may be complicated mechanisms like check valves and some may just be simple like a gate valve. A knife gate valve may just be a simple piece of mechanism with a gate that goes up and down by turning its hand wheel or through an electric motor. However, it is best to know what the main parts of the valve are to help out in the maintenance and repair of the gate valve.

1. Gate

This is one of the main parts of this type of gate valve. This is responsible for stopping any fluids or gasses from flowing through once the valve is closed and generally, this is the part that receives the most battering and stress, apart from the exposed parts. The gate is almost always made of cast stainless steel to withstand corrosion and prolong the life of the valve.

2. Body

Most of the time, a body of a knife gate valve is made from industrial grade stainless steel since this mechanism receives a lot of beating and has to withstand the elements, especially if it is exposed outside. Stainless steel also takes a long time before it could experience corrosion and fatigue. Also, it makes the device lighter than brass or steel valves.

3. Valve seat

This part is the notch where the gate sits when the valve is closed. The seats are mostly made from stainless steel as well to withstand and resist corrosion. Some companies have produced the valve seats sometimes with PVC or plastic, mostly utilized by the smaller units. Some seats are also designed so that any sediments or debris would not be lodged in it. This is also one of the parts to watch out for with this kind of valve since if it accumulates too much debris, the gate would not close and seal properly and cause the material to leak through.

4. Stem

This is basically the shaft of the mechanism. This is where the gate is attached and in turn, connected to the hand wheel. The stem is threaded so when the wheel is turned, it will enable the gate to raise or lower. This is also made of stainless steel to save weight and to also resist and withstand corrosion.

5. Hand wheel

The hand wheel is where the knife gate valve is operated. By turning it, it enables the gate to raise or lower. This can also be replaced with an electric motor or via hydraulic operation to make the gate valve open and close remotely.

These are the main parts of the valve. There are also a lot of companies that make these valves utilizing different materials and even offer replacement parts in the event that some parts would fail due to prolonged use and stress. To look for the best valve for your application, simply check the best knife gate valve review to help out in looking for the best supplier or manufacturer of these valves. This valve may be a small mechanism compared to the other devices attached to the pipeline but with its role, it can guarantee the smooth operation and flow of any fluids that pass through it.

How To Maintain A Knife Gate Valve

Sat, 22 Dec 2018 18:27:12 +0800

Here are a few tips on how to maintain a knife gate valve. Properly maintaining these mechanisms can definitely save a lot of money and can even prevent any disasters from happening.

In any plumbing system, valves are an important integral part. These mechanisms are important to regulate and allow the flow of any liquid or gas through pipelines, and if one of these valves would break, it can either cause flow disruption, leaks or worse, disaster. A knife gate valve is just as important as any other type of gate valve in the market. It just has a more compact and sturdier mechanism, but of course, it would still wear out eventually. It is best to properly maintain this valve to maximize its capability and prolong its life. Here are a few tips on how to maintain one:

1. Check if the shaft and knob is working smoothly

This is a type of gate valve that either only allows or restricts fluids to flow through, so most of the stress is on the valve when it is closed. One of the first things to check for wear is the gate shaft and knob. New valves and properly lubricated ones have knobs and shafts that move easier. If any resistance is encountered during opening or closing the valve, it is best to check for the shaft for any signs of corrosion. It should also be properly lubricated so that it can smoothly turn. If the shat corrodes, it can snap and either leaves the gate closed or open.

2. Check for debris on the valve seat

A knife gate valve has a valve seat that may be a bit deep for the gate to sit in and seal the flowing material on one side. However, as fluids pass through when the valve is open, it may carry some sediments or debris that can be lodged on the seat. As the valve is closed, this debris may be pressed in deep, especially if the seat is made of rubber. Once the amount of debris increases, the valve’s gate may not be completely shut and cause fluids or gases to leak through the gap. Always check if the valve seat is clean and free of any debris.

3. Check for the integrity of the gate

Most of these valves have a steel or brass gate, and through its lifetime, it would definitely show signs of fatigue or corrosion. If the gates have too much corrosion on it, it may snap clean from the shaft and either the broken materials gets pushed along with the fluids, or it gets completely lodged on the valve seat, rendering the gate valve inoperable. Although this may be inevitable, it is always best to properly check the gates of these valves for any bad signs. It may be expensive to replace a valve but the good thing is, especially for large ones, the gate, along with the other parts of a knife gate valve can be detached to be either replaced or cleaned.

The industry becomes very demanding indeed when it comes to these kinds of devices like the knife gate valve for their plumbing. No matter how small or big they are, they still play a vital role in a plumbing system. Properly maintaining these mechanisms can definitely save a lot of money and can even prevent any disasters from happening.

A Review Of Knife Gate Valve

Sat, 22 Dec 2018 17:29:14 +0800

Here are some of the types of knife gate valves that are available in the market. It is best to get the proper gate valve for a specific application.

With the growth of the Internet, a lot of companies can now easily advertise and provide electronic catalogs for any product they produce. With the Internet as well, any consumer can freely provide any review for any item. A knife gate valve has not been left behind with this. A lot of valve manufacturers can successfully post their merchandise on their website, along with catalogs and reviews. It may be quite deceiving though so it is best to go through their entire catalog and if they have customer support, it is best to speak with them as well to receive more information about the valves they produce.

In line with this, again, there are a lot of companies that produce gate valves and these valves are also produced using different materials like plastic. Here are some of the examples of these valves that are available in the market. It is best to get the proper gate valve for a specific application.

Plastic knife gate valves

These kinds of gate valves are generally used only for low pressure applications most commonly for aquaculture like simple irrigation or plumbing and piping for fish tanks and other similar applications. These gate valves can only hold to a maximum of 30 PSI and at least 10 PSI for the larger units as plastic is not as strong as steel. The good thing about these kinds of valves is that they are much more inexpensive than the steel ones so even if one fails or breaks down, it is easy to replace.

Brass knife gate valves

A knife gate valve made of brass is basically similar to those made with cast stainless steel. However, these kinds of gate valves can withstand higher pressures, especially if the gate is made of the same material since this metal is harder than stainless steel. This can also be used with similar applications for those made with stainless steel since it can also withstand corrosion and the elements. The maximum pressure a brass gate valve can withstand is around 300 PSI, double than what a stainless steel valve can withstand.

Stainless steel knife gate valves

These gate valves are the most common that we can see in the market today since it is known that stainless steel can pretty much withstand corrosion and the harshness of the elements. However, as per regulations, stainless steel gate valves can only withstand 150 PSI to avoid any serious breakages or other accidents that can be caused by broken gate valves.

There are pretty much a lot of these kinds of gate valves in the market. With the number of choices available, you can view the knife gate valve selection guide to have more information on what knife gate valve to get for your needs.

Also, searching for proper reviews on the Internet, it is best to read through third party websites like do-it-yourself sites that may provide more insight and reviews about several of these valves and also user experiences with several companies that offer these items. That way, you will be able to know where to go to when it is time to buy the valves you need.

7 Basic Parts Of A Diverter Valve

Fri, 21 Dec 2018 19:24:32 +0800

The knowledge of the different parts of a diverter valve will help you analyze future problems that may arise due to long-term usage of the valve.

Knowing the different parts of a diverter valve shall save you some time during maintenance tasks. Proper knowledge of its different parts and what functions they serve can also help someone grasp the basic operations surrounding pool applications and any other systems that utilize this type of valve.

1. Body

Regardless of valve type, the most common shape of a valve’s body is spherical. There are other shapes available but it largely depends on the diverters present. In most instances, the body has partitions to support the seat that is an essential internal valve part.

2. Bonnet

The bonnet is the cover for the valve's orifice. There are manufacturers who provide diverter valve designs wherein the bonnet solely serves as a covering. Others implement a design wherein the bonnet effectively supports and protect the trim components like the seat, stem and disk.

Recent studies about valve components revealed that the bonnet can pose potential occurrences of leaks. It further complicates the manufacture of the valve because it relatively adds to the size resulting into higher purchasing cost.

3. Seat

This is one of the internal valve components that comprise the trim. It is also called seal ring. It holds the disk in place. Mort rings of valves with diverters are o-shaped, thus they are called o-rings and commonly come in three per valve.

4. Disk

This is the trim component that gives shape to the valve. This part also plays large part behind the name conventions of valves. It plays an essential part to the entire functionality of the valve because it allows and deprives fluid flow. In terms of pool applications, it is vital towards the regulation of water flowing through the pipes from the source to the pools.

5. Stem

This part connects the actuator and the disk to each other. This part determines the position of the disk. It allows the rotational movements of the disk while held by the seat. Proper rotating movements should be practiced to guarantee the firm connection of the disk to the actuator and to the stem itself.

6. Actuator

This part runs the disk and the assembly properly. It has different methods of operation. Some are manual while others can be operated by solenoids, motors, levers, and pneumatic operators. Actuators are always usually placed outside the pressure boundary of the valve.

7. Packing

This part is made from a variety of materials. Yet, despite differences in material composition, the common purpose is separate the internal parts to the external components and to protect them from potential damage-causing actions. The packing is also a defense line against leaks.

In conclusion, the knowledge of the different parts of a diverter valve will help you analyze future problems that may arise due to long-term usage of the valve. By familiarizing yourself with the different parts of valves with diverters, you are embracing the benefits of a well-understood interconnected functionality of each part. This can also influence your choice of a particular valve with diverters for use in your own applications, be it for personal or business purposes. Read here for more of the selection guidelines for valves with diverters.

How To Maintain A Diverter Valve

Fri, 21 Dec 2018 19:20:39 +0800

By following all of the instructions provided for both disassembly and reassembly parts of the maintenance process, be assured that your diverter valve will function as smoothly as before.

For a diverter valve that will serve its purpose of providing economical use of water, here are the steps for its proper maintenance. By following the simple instructions provided herewith, use your valves longer and walk away with savings. This maintenance guide is applicable for those valve models without grease ports.

1. Turn off the water pump. This is to ensure that the water flow will not interfere with the whole maintenance process.

2. Open the filter valve. This step is to make sure that the stored pressure is relieved before the disassembly.

3. Disassemble the valve. By doing this, you are initiating the maintenance routine and you are preparing the valve for succeeding maintenance processes.

4. Swivel the valve handle to facilitate easier pulling of the valve assembly.

5. Unscrew the valve cover. Usually the top cover a diverter valve contains eight screws. However, depending on the model and brand, this may vary.

6. Pull out the valve assembly out of its body. Perform this by gripping the handle in a moderate pilling manner.

7. Remove the lock knob. It is located on top of the valve assembly. Removal can be done by typical unscrewing process.

8. Raise the handle off from the assembly shaft to facilitate removal or pulling of the assembly shaft unit from the cover.

9. The o-rings should now be exposed to you.

10. With the o-rings exposed (usually in 3), you should now carefully inspect the part for possible damages and tears.

11. Apply a thin coat of lubricant on the part of the o-rings where you spot some damages.

This 11-step guideline will help you smoothly with the proper maintenance and lubrication of your valve. However, the maintenance process doesn't stop there. As tasking as the disassembly is the reassembly process that can be performed by following the separate instructions below.

1. Place the assembly shaft unit back into the cover.

2. Place the valve handle onto the assembly shaft. Just make sure that the slots of the shaft are correctly placed for easier fitting.

3. Tighten back the locking knob back to its original place. Position the “off” label away from the “inlet”. This will assure you that the valve will operate in its correct position as before. This will save you from additional maintenance work as you will only be able to turn off the inlet.

4. Put in the valve assembly onto its body. In this step, you must be sure that the inlet label is aligned with the exit ports connected to the valve.

5. Insert and tighten back the screws of the valve cover.

6. Place the valve handle back to its operating position.

7. Perform the final maintenance process through checkup. Guaranteed that the pump basket is filled with enough water, restart the pump. See to it that the valve squirts water.

By following all of the instructions provided for both disassembly and reassembly parts of the maintenance process, be assured that your diverter valve will function as smoothly as before. Be relieved with costly repairs by doing simple maintenance tasks. Read about the valve's different parts here.

Hayward SP0727 Perflex Diverter Valve Review

Fri, 21 Dec 2018 19:17:38 +0800

With the great range of pool diverter valve out in the market today, most of us are obstructed with the very difficult task of buying the best one that suits our need. Different brands seem to outweigh each other by capitalizing on certain advantages over one another. Nonetheless, the Hayward SP0727 Perflex model outweighs its competitors by gearing towards environmental concern for which international industry standards are largely based.

The main feature of Hayward SP0727 Perflex model is based on its noncorrosive property. This means that this valve can greatly divert or converge fluid, regardless of their constitution and temperature. Thus, those who intend to use this for their pools will have fewer worries that the chemicals they use for water treatment will corrode the valve.

As with the other models manufactured by Hayward, this model efficiently handles pressure ratings marked up to 50 psi. It also supports easier flow regulation through its dial handle. Thus, you can have full control of how strong the fluid flow will be. Another leverage of the model is its union end connectors that facilitate simple disassembly of the piping.

Via Hayward SP0727 Perflex model, you can be assured that your pool system will be working well with less maintenance due to corrosive materials that will possibly enter the valve system and its pipes from the source. This means fewer expenses due to unnecessary improvement works.

Its ability to handle high pressure and high volume of liquid makes it perfect pool companions to fill large-sized pools with skin-refreshing water.

Most users that have purchased and utilized this valve in their own pool and garden applications agree that maintenance is quite easy. They attribute this to its union end connectors that make disassembly and reassembly of the valve including its parts easier. They further stated that this particular feature helped them save time for other important tasks.

A particular user stated that his husband purchased this valve model for easier pool cleaning and maintenance. All praises poured down because it had significantly reduced the amount of time his husband usually exerts on the task.

Another user was persuaded to buy the valve due to its noncorrosive features. Doubtful that the valve will live up to its claim, he still had the Hayward SP0727 Perflex model installed in their resort. He was amazed how it greatly minimized the cleaning efforts due to its reliable filters. Their pools were as clean as it can be due to the absence of valve–corroded particles that usually mix with the water flowing through the pipes.

The model is available in many physical outlets and online stores. Price difference is minimal and it can quite be shouldered by an average budget.

Due to the great features offered by Hayward SP0727 Perflex Diverter Valve, this model undoubtedly gets our praises. The model is greatly recommended for those pool owners, both residential and commercial who wanted to deduct fewer minutes of pool cleaning and maintenance tasks. For more tips regarding the maintenance of diverter valves, here is the maintenance guide.

Selection Guide Of A Diverter Valve

Fri, 21 Dec 2018 19:10:58 +0800

There are five factors which you must consider to choose a diverter valve is material, safety features, valve size, number of diverters and cost concerns.

Before buying a diverter valve for your garden, pool or any other systems or applications, here are important factors to consider that will help you pick the right one. Follow this simple guideline and have the best blowoff valve that will greatly serve the purpose of your applications.

1. Valve Material Make up

Valve and pump systemsare primarily designed to facilitate the flow of fluid to different parts. Depending on the material composition, there are specific valves that can handle specific kinds of fluid such as plain water, chemical-treated water, and any other fluid mixed with some hazardous components. There are also types that can handle sticky, abrasive, high-pressured, and fluid with extreme temperatures (too cold or too hot).

Manufacturers make valves with diverters usually from high-grade steel, stainless steel, ceramic and PVC. Choose the valve type that matches your system’s fluid. This is to prevent any untoward incidents such as leaks.

2. Safety Features

Valves, especially those that are used in industrial applications should be properly equipped with safety features. The whole valve system should have visual tags. This will help inspectors and other people who are working with the valves have clearer vision of which parts to touch, twist, rotate, pull or lift.

Safety features will not only protect your workforce from incurring any workplace accident or injuries. They will also protect your property and your business.

3. Valve Size

The valve size should be able to handle the pressure of the fluid that will flow through the pipes connected to it. This is to lessen the possible occurrences of breakages, leaks and fissures brought by strong fluid pressure. Large diverter ports can support larger pipes. This means that it will be able to handle higher volume of liquid and stronger pressure too. Smaller diverter ports are stable for use in directing fluid of smaller volume or with weaker pressure.

4. Number of Diverters

Diverter valves are primarily utilized due to its capacity to diverge the fluid into several directions. Most types have two to three diverters. This is an essential consideration especially if your system is designed to combine two or more fluid from different sources into one spot.

If your system needs to combine fluid from greater sources, some manufacturers have four diverters or more. For efficient fluid flow from different sources, careful systems design must be carried out.

5. Cost Concerns

This factor is of a very wide coverage. Combining all the other factors will come down to the expenses that you will incur when purchasing the right valve for your application. The cost will also be dependent on the brand that you will pick up. Installation cost is another associated sub factor.

By considering the five factors when choosing valves with diverters, be geared up to receive the benefits that come with it. Save the most that you can, not only in terms of money, but also in the time and effort that you will exert on the canvassing and actual purchasing tasks. With these factors in mind, have lessened time associated with researching for different diverter valve. Look at the article about a review of the Hayward SP0727 Perflex Diverter valve to get more knowledge of a diverter valve.

Parts Of A Globe Valve

Fri, 21 Dec 2018 19:06:00 +0800

Knowing the parts of a globe valve can aid in learning how the flow of liquid moves and circulates around the equipment so that we can maintain Globe valve better.

Globe Valve is mostly utilized for the purpose of regulating the flow of liquid in a pipeline; it can be programmed to stop the flow of liquid entirely, slow down the stream or set the fluid to move freely. This type of valve is named after its globe-shaped body that is being separated by an internal baffle; the baffle is the device that is being used to control the fluid flow and it contains two parts – the flat plug and the ring shaped seat. Once the plug is properly positioned in the seat, the movement of the fluid is totally constrained nevertheless, the baffle can be manipulated by either opening it or closing it depending on the amount of fluid flow that you want to have.

Understanding the functions of this valve is very fascinating. All of its parts work as one so that it can follow through the directions that its operator executes. This valve can serve a lot of uses and it can last for many years if the owner knows the proper method of how to maintain a Globe Valve. Moreover, knowing the parts of such valve can aid in learning how the flow of liquid moves and circulates around the equipment; its parts are enumerated and explained in the information below.

Body

This part of the valve is noted to contain the main pressure structure and it aids in forming the mass of the valve. The body surrounds the valve’s entire internal parts that will come in contact with the movement of the substance that is being regulated. The bonnet is linked to the body and it stipulates the containment of fluid, gas, or slurry that is being regulated.

Bonnet

This part supplies a leak proof closure towards the body of the valve; the threaded portion of the stem passes through a hole that contains matching threads in the bonnet. The valves may have screw-in, union, or bolted bonnet. The screw-in bonnet gives a durable and pressure tight seal; the union bonnet is ideal for application that demands inspection or cleaning on a regular basis; bolted bonnets can be utilized for larger and higher applications.

Plug or Disk

This part is considered as the closure member of the valve and it is linked to the stem which is screwed up or down to adjust the control. Plugs or disks are categorized in two forms such as the balance and unbalanced type. The balanced type contains holes towards the plugs; it aids in easier shut off mechanism and it can overcome static force. The unbalanced type is solid and it can be maximized for smaller valves that require low pressure drops.

Stem

The stem connects the actuator inside the valve and it helps in transmitting the actuation force. It is necessary that the stem is able to withstand a large compression force and it should acquire a substantial amount of strength during valve opening.

Seat

The seat offers a stable, consistent and replaceable shut off surface. This part may be installed and screwed in the same area of the body.

Handwheel

This is used for the manual regulation of the valve

Keep in mind that in order to ensure that Globe Valve executes an outstanding performance all the time, all of its parts should be properly installed and it should always be in its proper working order.