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How Often Does an Air Conditioner Need Service?

Air conditioners are now has become an important part of our lifestyle. With increasing heat and polluted air people prefer Air conditioner over fresh air. And to keep it working smooth a/c maintenance is need. Thus arise the question how often an Air Conditioner need service?

Well to start with it completely depends on the type of A/c you are using and the geological conditions you live in:

Window air conditioner

This type is the most commonly used system for single rooms. As these a/c are used in small rooms they do not easily get dirty and hence doesn’t need that much of maintenance. Moreover cleaning and a/c repair in these kinds of air conditioners are easy compared to others.

Servicing time: They just need once a month gal filling and once in two months cleaning.

Split or ductless A/c

This type of a/c system is called a “split” system because it is made up of two units: one indoor and one outdoor. Basically used in Hotels, Apartments and hall like rooms. These are very easy to maintain as well and just need an extra care as their cooling area is bigger.

Servicing time: They need every once in a month servicing for both cleaning and a/c repair.

Portable A/c

This is a variation of the unitary air conditioning system. This type has a mobile air conditioning system placed on the floor inside a room. It discharges exhaust heat through the exterior wall by means of a hose vent. This a/c is used for extreme hot weathers to cool down rooms or houses. These a/c needs heating repair services very often.

Servicing time: Can need extra heating repair services every month and needs cleaning as it gets dirty in the vents very easily.

Central A/c

This type of system makes use of a large compressor. Two separate packaged units are also used. The condensing unit is placed outside the establishment and contains the condensing fan, compressor, and condenser coil. The internal evaporative unit, consisting of the evaporator coil and expansion valve, is placed in the plenum of your furnace. This unifies the ductwork of your air conditioning and heating systems. These air conditioners are used for big buildings, apartments, offices, hotels, restaurants and other big buildings.

Servicing time: Depending upon the building size their servicing is really tough. They usually need a/c repair and cleaning in every 4-5 months.

Sometimes finding a good a/c repair and heating repair services is tough but you can find thousands of options online. One of such websites is Green House Inovation where you can find all the services.

Signs That Indicate Your Electrical Panel Is Not Working Properly

Electrical Panel is a device that is mainly designed to feed electricity to the sub-circuits of a high-rise building or any other structure. It ensures the proper flow of electricity throughout the workplace and is also considered as a load center. It accepts power from the main source and supplies it further throughout the industry. The device is the life-line of your electrical system; therefore, it is important to buy the right option to get assured about your workplace safety. This is because a wrong selection of the device may create a lot of trouble and host harmful effects. To keep yourself safe and secure, it is important to identify those signs of failure sooner, otherwise, it creates a dicey situation, which turns into a nightmare anytime.

Sings To Identify Electrical Panel Failure:

  1. Trip More Frequently: In case your electrical panel trip more frequently, so, the chances, it gets overloaded and not able to supply an adequate amount of power to your home or office. It simply means that the unsafe amount of electricity moving through it, which can be dangerous for you and your workstation too. Don’t get panic, all you need to do is shut down the device and call for the professional assistance soon.
  2. Fail To Restart: In most of the cases, when it trip down people probably try to restart it, so, it may work properly like before. But if it fails to restart, so, it’s a clear indication that your electrical panel is not working properly and need immediate care. Don’t try to restart over and over because it can cause short-circuit or hazardous fire accident.
  3. Flickering Light: If you ever see a flickering light on the device, so, don’t touch it and try to shut it off immediately. Because the flickering light in the electrical panel indicates its failure and running it otherwise, may put your life in danger. Basically, the condition occurs when there is some wrong connection establish in between the wires, don’t try to fix it on your own, it can be risky. Take professional assistance instead.
  4. Constant Buzzing Sound: If your electrical panel creates constant buzzing sound, which is more than just normal, so, it’s a sign that you need to either repair or replace the device sooner. It is a serious issue and can take the shape of a big accident if you take it for granted.

5 Benefits of Hot Oil Filtration Systems

Hot oils are prone to degradation due to oxidation and thermal cracking. As oil degrades, it produces carbon build up-and this ultimately results in system contaminants in the form of sludge and coke. When these products collect throughout your system-particularly in pump seals, valves, and other internal regions-they can result in a wide range of equipment issues or even worse, a full system breakdown. Continuous build up of carbon contaminants and the lack of a proper hot oil filtration system can be detrimental to different components of your equipment, specifically to heating surfaces, which can reduce the overall efficiency of heat transfer within your system. This is one of the primary reasons why industrial filtration is critical to hot oil heaters and similar types of industrial systems. A well-designed and fully functional hot oil filtration system ensures proper heat transfer and prevents system issues commonly caused by sludge and coke build-up within hot oil heaters.

Rapid hot oil breakdown and degradation due to oxidation and thermal cracking also entails additional cost because of increased oil replacement and greater labor man hours brought about by the increase in maintenance and repair. Additional costs also come from additional replacement parts, which can quickly add up to considerable amounts, when sludge and contaminants get to seals, rotors, valves, mag-drive canisters, and other expensive to replace system components. When an industrial filtration system is in place, all these additional expenses can be avoided, while reducing the number of man hours needed to maintain and keep watch of the system’s efficiency.

In addition to sludge and coke, which are generally caused by carbon formation, many other types of contaminants can be introduced to a thermal fluid system-from dust and dirt to sand, mill scale, and piping slag (which can also accumulate during installation and even during downtime maintenance). Most hot oil heaters feature y-type hot oil filtration systems that serve as basket type strainers installed before a system pump. These types of industrial filtration systems are designed to protect valves and flow meters and help prevent pump cavitation, effectively protecting the system from mechanical seal failure.

Hot oil filtration systems have many other benefits, including efficient removal of particulates which degrade the oil. Fluid viscosity maintenance-which effectively reduces sludge build-up-is another. The proper filtration system likewise allows maintenance of thermal efficiency (thus reducing energy cost), longer oil life, and reduced maintenance costs as pumps and valves are protected.

How Copper Plating is Improvising Medical Devices

Copper has been assuming immense importance in the history of medical and health science since ages. It is due to the anti-microbial properties of the metal that help to cure various ailments and diseases in the human body. The growth and expansion of latest technologies has simplified the task of medical experts while applying this coating process in the production of medical equipment. Such technique widens up the scope of experimentation to improve the efficacy of different medical devices to meet the growing challenges in combating various diseases. At the same time, it also prevents any adverse impact on the health of the patients encompassing the surrounding environment.

For achieving a desired outcome in the production of medical devices, it is better to seek the services of a reliable copper plating company. It is because a metal coating technique always involves thorough knowledge and experience to handle the task of project completion within the strict duration. The advantages which come with the integration of copper plating technique in medical devices are:

  1. Cleanliness: While treating patients, doctors always emphasise on utmost cleanliness at the time of using medical products such as injection, artificial capillary tube, and so on. With the advent of copper plating technique, now there is no scope of bacteria and fungus accumulation in these medical devices at all.
  2. Resist Pressure: It is due to such metal coating process that equipment like catheter braids remains stable and flexible at the time of administering saline water or oxygen into the targeted body region of a patient. It also guarantees sanctity of oxygen and other liquid solution at the time of transmission
  3. Prevents corrosion: It has become possible to easily maintain and manage instruments such as the surgical clamps, transparent pipes etc in good conditions on a long-term basis only due to the copper plating process. This has also lowered the chances of rust and corrosion which ultimately ceases the chance of adverse health impact.
  4. Forming radiopaque region: Metal coated devices play a major role in blocking the radiation which is normally administered during the time of X-ray diagnosis and so on. As a result, it helps to capture a quality X-ray picture to assess the condition of bone, muscle, and joint. It is because of such plating that it has become easier to danger to avert the danger radiation that emits from iridium and other harmful compounds.

Fiber Laser Marker – The Best Industrial Solution For Product Identification

During the last two decades the use of Fiber laser marker has been in high demand so far as the labeling media is concerned. It provides substantive advantage in identifying product inventories and also the ability to provide consumer information on the products. It has become very useful in the industrial and commercial purposes.

There are several laser marking machines available in the market but fiber laser marker is one of the most updated with latest technology. It uses fiber pumping technology to dope the fibers with rare earth element such as Ytterbium. This element helps to increase the ability of the fibers to conduct light emitting diodes, which are then pumped through the fibers to the optical heads. And at that point of time the beam of light expands to create the laser marking capability. This beam of light, marks the material using one of the four methods such as

  • Laser engraving
  • Removal of the layer of material
  • Etching of the surface of the material to change color
  • Bonding

Fiber laser marking can be used on wide range of materials especially different types of metals to engrave. They are used in Medical Devices, Jewelry engraving, laser cutting etc. They are also used in producing high resolution images that are ink and acid free for the use in electronic application.

Advantages of Fiber Laser Marker

The equipment is simple and cheaper to use than other forms. It requires minimum maintenance. There are different ranges of fiber laser machines. The most important benefit is its minimal part replacement wherein the diodes have a significant lifespan which does not increase the cost. The replacement if needed can be done in the absence of the technician. It helps in air cooled designs.

It is the best machine for diamond cutting and marking, for marking and engraving plastics, metal, wood, glass, stone, ceramic, rubber, acrylic and textiles.

The laser cutting machine is used to cut flat sheet materials as well as structure and piping materials. They are specially used for industrial manufacturing applications. The laser beam that is produced is focused on the material which has to be cut with a motion control system used by the CNC or the code system by a jet of gas. There are different types of lasers used in laser cutting machine. The CO2 is used for cutting,boring and engraving. Neodymium is used for boring where high energy is used with less repetition and the other is Nd Yag is used where high power is needed.

Know About The Selection Process of Steel Tubes in Industries

This type of tube is a welded structural grade tubing which is available as per the size and wall thickness. It is actually more of an economical square bar which is used for applications that have a greater and stronger resistance than the others. It has a dull finish in nature which is not attractive at all but is mostly used for different fabrication projects that are exposed to the chemical, fresh water, and salt water environments. This was just the basic information about these tubes; now let us go into details about its uses and specifications. As mentioned above there are a couple of other places where these tubes are used such as structural support for buildings, bridges, highways, machine parts, sign posts, ornamental usages and much more. They are also used at the industrial sites for support only such as construction, furniture and agricultural ones.
Some Basics to Understand
When it comes to steel, the first thing you need to know about it is that has some sort of grade and type that needs to be understood before you purchase one. For example, if you visit the market, you will get to know various types of steel that are available among which you can enquire about the carbon steel kind. All you need to do is then to match the grade with the one you find in the market and the grade for it is A500 GR B/C. So, in short, there is the grade for every type of steel pipe and tubes out there. The other factor you need to be aware of is the shape of the tube or pipe you need to purchase. Let me also inform you another important factor that the steel tube normally comes in various shapes such as round, rectangle, hexagon, oval, oval with flat sides and much more. However, if you wish to have a customised one then you can speak to the concerned manufacturer and supplier and if it is possible you might get it too.
This was all about the shapes and the grade. Let us now know something more about the sizes. Pipes are mostly measured by inner diameters and the schedule that they have whereas the tubes here are measured by their outer diameters and wall thickness, also known as OD and WT respectively. If you are getting a tube then make sure that you also check about another measurement known as Average Wall Thickness since this covers the average area of the wall thickness taken around the tube. Sometimes people consider another type of measurement which is also known by Minimum Wall Thickness. This type of measurement here determines the minimum thickness of the wall throughout the tube. In the market, normally you get various types of tubing and those types are seamless and welded ones. Seamless normally has no weld seam at all while the welded ones have a visible type of weld seam. There are many other companies that also supply Drawn over Mandrel (DOM) tubing too. This type here is a welded product which is without a weld seam since it is removed out completely. You might find it to be a seamless product but it is a welded tube like the others too. The grades for a hot finished carbon steel tubing is around ASTM A106 GR B/C whereas the common carbon welded ones are ASTM A513 respectively. In case you are in a hurry to get some steel tubes then you should definitely go in for Round Mechanical Tubing, Electric Weld and cold drawn ones which are always available and you do not have to wait like the others to be manufactured and then delivered.
Lastly, all I can conclude by saying that it is the best possible type of tube to buy and if you need a customized one with different length and tubing, then all you need to do is to just send a quote as per your requirements to the concerned supplier and manufacturer and get your tubes delivered in just a span of few days. Hope that the above article has given you an idea about the basic information pertaining to the different steel tubes.

7 Types of Grinding Mill Liner Materials

These days, it is common to use liner-handling machines for large mills. This has led to a growth in the need for and use of large liner blocks. It is extremely advantageous and can reduce the time for relining. In smaller mills, one has to manually set up the lines. Naturally, the industry prefers smaller blocks that come with removal lifter bars. Find out about the 7 different types of materials used in grinding mill liners.

Ceramic Liners

An extremely hard product, ceramic is highly abrasion-resistant. High alumina ceramic is the commonest ceramic liner. High temperature applications, resistance to corrosion, low coefficient of thermal expansion, extended lifespan and high resistance to abrasion are some of the main advantages.

Ceramic Combination Composite

Composite mill liners were created to benefit with the ceramics high resistance power to abrasion as well as the elastomer’s energy absorbing features. There are the benefits of improved resistance to abrasion, noise reduction, urethane’s energy absorption, comparatively lower coefficient of thermal expansion and resistance to corrosion.

Magnetic Metal Liners

The China Metallurgical Mining Corporation has developed a new technology in order to prevent quick wearing down of the rubber liners. The magnets allow the lining to stay ‘in touch’ with the end plates and the steel shell without the use of bolts. Some of the main benefits include longer life, reduced consumption of power and higher effective mill volume. These are lighter and thinner than steel.

Grid Type Liners

It is similar to magnetic metal liners, with only a grid type structure distinguishing it. These were created in South Africa and the liners are extremely low-cost for highly abrasive ores. These are light in weight. The inside of the liners are filled with balls, and these work as a perfect wear material. These are made out of manganese steel that can make removal tough, and spreads often.

Rubber Liners

Lifters have been constructed for decades out of strong abrasion resistant rubber to ensure good use in field, which ensures the capacity of the lifters to resist persistent pounding during milling operations. Some of the main advantages of rubber mill liners include no leakage, reduced weight, reduced noise level, less maintenance requirements, lower cost and longer operation life. These are easier and lighter to handle, and can reduce the consumption of power. The lifespan of pinion or bearing is longer.

Abrasion Resistant (AR) Steel

AR steel classifies alloy and carbon steels that are designed especially for better resistance against abrasion. The main benefits include comparatively lower co-efficient of thermal expansion, ease of installation, workability, wide variance in alloy composition and hardness to custom-fit the application, medium cost and more.

Ultra High Molecular Weight (UHMW)

A polyethylene plastic, HMW can be found in different formulations. It is usually agreed that either chemical cross-linking or natural cross-linking at the time of UHMW manufacture can increase abrasion resistance. Some of the prime advantages include resistance to corrosion, low weight per square foot, low co-efficient of friction, easy installation, workability, low cost and reduced water absorption that lowers the possibility of liner material being frozen.

Steel for Various Domestic and Industrial Uses

Steel tubes and sheets are a preferred option when it comes to domestic or industrial fixtures. The reason it wins over other metals is that it is safer and easier to maintain. It has properties that make it resistant to corrosion and reaction to chemicals. As compared to other metals, it has more strength. The changes in the weather do not affect the condition of it which makes it the most appropriate and preferable product for outdoor fixtures. Apart from above, it can also be bent into any shape to form tubes, rods, rings and sheets. They last longer in the industries and can be easily maintained with little efforts. Furthermore, steel fixtures have an impressive and sophisticated look owing to which it is chosen in almost all the industries as the foremost choice.
Industries Where Steel is widely used
Various industries like the food industry, cloth industry, pharmaceutical industries, automotive industry, agricultural equipment, constructions, furniture industry and much more prefer steel over other metals. One of the prime reasons to it is, it is nontoxic and does not cause any harm to the users. The steel equipment can be easily purchased from steel tube suppliers in the form of kitchen and bathroom fixtures. Apart from domestic users, suppliers also provide steel for industries, restaurants and commercial complexes. Considering its durability and strength it is used for making kitchen tops, utensils, cutlery, work surfaces, appliances, industrial equipment, industrial pipes, tubes for water, chemicals and other liquids and much more.
Household Uses of Steel
Steel has been widely used for domestic purposes as it is easy to maintain, durable and easy to handle. From kitchen fixtures to bathroom water tubes, it is used everywhere in houses. Thus, it can be used as kitchen tops, wash basins, and even in appliances like food processors. One of the best qualities of steel is, it does not react to any chemicals or does not emit harmful substances when in contact with acidic to citrus food items. This makes it easy to use it in the kitchen without any apprehension.
Uses of Steel in Other Industries
In industries like the pharmaceutical industry, food industry or even the cloth industry; use of chemicals cannot be avoided. As it has a noncorrosive and non-toxic property, it is highly recommended for use in such industries. At times, these industries have to use extremely hot or extremely cold chemicals or liquids, and in such situations, it is one of the best materials to choose. It does not react to either and thus the property and condition of the liquid passing through steel pipes remain safe. Industrialists can thus reliably make use of steel and carry out all the necessary processing. In addition to this, steel pipes can also be used in outside units as well. Unlike other metals, atmospheric changes do not affect steel, therefore making it safe and an appropriate item to choose.
Steel for Construction
Steel is used in various forms like tubes, sheets, rings and rods. Such variations are ideal for constructions. Previously for the construction of the concrete structure, iron rods were used as support. However, changes in climate and due to exposure to water and moisture, iron tends to give away its strength and leads to rust. Such rusted rods failed to provide the proper strength needed for huge concrete structures and this is one of the major reasons steel rods gained popularity. Steel rods can be effectively used for strengthening the structure and also provide durability to the building.
Use of Steel to make Furniture
Steel is also used to make furniture for schools, offices and commercial complexes. From simple chairs and tables to huge storage units, it can be used in many ways. Use of steel is a preferred choice as it needs minimum maintenance and can be used for a long time. Steel for beds, storage units, chairs, tables, dining tables, office desks, benches in waiting areas and play areas, as well as gardens and parks, are used more often than any other metals.

The Purpose of Implementing Sand Blasting Machine in Industries

As the world develops and is in competition with each other with regards to construction and trade, the use of various applications and equipment to ease the work has been introduced. The objective of introduction of such equipment is to increase the productivity and also to quicken the work progress. The booming population world over has led to countries adopting ways and means to increase their productivity.

With ease and productivity comes the question of quality. To ensure high-quality and reliability, the construction field and other industries are very careful and choosy when it comes to their work materials. The aim is to provide the best product for the people while taking their safety into construction.

When it comes to construction, many types of equipment needs to work in harmony in order to complete the entire process harmoniously. One of the equipment which many will be unaware of but has an utmost importance in construction and other industries is the sandblasting machine.

What is a Sand Blasting Machine?

The sandblasting or abrasive machine is a type of equipment which works under high pressure and uses silicon sand typically used to clean mechanical service. This machine effectively cleans paint, rust and other contaminants from the metallic surface. Hence it is highly applicable in infrastructures, ships, and other vehicles.

This process is vital in all metallic structures before it undergoes coating as it helps prevent damage and perfection before the material is coated with a protective layer. Sandblasting is the strongest method of cleaning metal surface among various other methods of abrasive cleaning.

This method is also used for creating a signage on wood and glass to create an authentic look. Many hotels and resorts use this type of signage to create a traditional and homely look. The high pressure from this machine can be used tactfully to engrave signs on cemetery monuments.

The most important use of this machine is in cleaning the hull of ships, metals in construction as well as for other brick, stone, and concrete works.

Types of sandblasting machine and methods employed

The most commonly used type of sand blasting machine is the portable sand blasting machine. This type of machine being portable can be moved to different places and are often found mounted on semi-trailers to be carried to different locations. The lighter version of this type can be moved freely and are easy to use.

Blast cabinet is another type of sand blasting machine which as the name suggests has a cabinet and is a closed form of the machine where blasting of contaminants as well as recycled. This machine has various functions which include cleaning, recycling and also the collection of dust materials. These machines are used especially in large industries

The third type of sandblasting is the sand blast room. This is bigger than a cabinet and here the operation is done in a room and it has a recycling system more powerful than the blast cabinet system.

The methods employed by the sand blasting machines are with silicon sand, which is the most common method employed it all industries, soda blasting, glass bead blasting, steel sandblasting and the bristle blasting and much more. The different types of blasting are employed according to the surface to be blasted and the specific type of grit that is desired to be achieved.

There has been a huge demand for the sandblasting companies in UAE and the machine is being applied in all industries. To know further on these companies log on to Etisalat Yellowpages business directory.

Top 10 Problems When Using Regulating Valves

1. Why is the two-seat valve prone to oscillation when working under small opening conditions?

For single-core valves, when the medium is flow-open type, they’re stable. When the medium is flow-closed type, they’re unstable. There’re two valve cores in the two-seat valve. The lower core is in flow-closed condition while the upper core is in flow-open condition. In this case, under small opening conditions, the flow-closed type of valve core will easily cause oscillation of the valve. This is why two-seat valves can be used for small opening conditions.

2. Why can’t double-sealing valves be used as sanitary shut-off valves?

Two-seat valve core has the advantage of balanced force double-sealing valve structure, allowing a large pressure difference. And its shortcoming is that the two sealing surfaces cannot be in good contact at the same time, causing a large leakage. If it’s purposefully and mandatorily used in shut-off occasions, the effect won’t be good, even if a lot of improvements have been made on it. (such as double-sealing sleeve valve)

3. Why does the straight stroke sanitary regulating valve have a poor anti-blocking performance and rotary stroke regulating valve have a good anti-blocking performance?

The core of straight stroke valve is vertical throttle, but the flow direction of the medium is horizontal. So there must be lots of twists and turns in valve cavity flow channel, making the flow paths of the valve very complex. Therefore, there’re a lot of blind zones that provide space for deposition of the medium, which in the long run causes clogging. The throttle direction of rotary stroke valve is horizontal, the medium horizontally flows in and out, which can easily take away unclean medium. Meanwhile, the flow path is simple, and there’s little room for medium deposition, so rotary stroke valve has a good anti-blocking performance.

4. Why is the stem of straight stroke regulating valve thin?

It involves a simple mechanical principle: the bigger the sliding friction, the smaller the rolling friction. The stem of straight stroke valve moves up and down. If the stuffing slightly pressed a little tighter, it would wrap up the stem tightly, resulting in a large hysteresis. To this end, the valve stem is designed to be thin and small and the stuffing use PTFE that has a small friction coefficient in order to reduce the hysteresis. But the problem that derives from this is that a thin valve stem is easy to bend and the stuffing has a short service life. To solve the problem, the best way is to use rotary valve stem, a regulating valve similar to the rotary stroke ones. Its valve stem is 2 to 3 times thicker than that of the straight stroke valve. And it uses graphite stuffing that has a long service life. The valve stem stiffness is good, the service life of stuffing is long, the friction torque and hysteresis are instead small.

5. Why does the rotary stroke valve have a relatively large shut-off pressure difference?

It’s because the torque on the rotating shaft produced by the force of medium on valve core or valve plate is very small.

6. Why is the service life of desalination water medium short when using rubber lined butterfly valve and fluorine lined diaphragm valve?

The medium of desalination water contains low concentrations of acid or alkali, which are pretty corrosive to rubber. The corrosion of rubber is exemplified by expansion, aging and low strength. The poor effect of using rubber lined butterfly valve and diaphragm valve is actually caused by the intolerance of corrosion of rubber. Rear rubber-lined diaphragm valve is improved to be the fluorine lined diaphragm valve that has a good tolerance of corrosion. But the lining of diaphragm of fluorine lined diaphragm valve can’t withstand the up-and-down folding and is broken, resulting in mechanical damage and shorter service life of the valve. Now the best way is to use water treatment special ball valves, which can be used for 5 to 8 years.

7. Why should shut-off valves try to use hard sealing?

Sanitary shut-off valves require the leakage to be as low as possible. The leakage of soft sealing valve is the lowest, so the shut-off effect is certainly good. But it’s not wear-resistant, not reliable. Judging from the double standard of small leakage and reliable sealing, soft sealing shut-off is not as good as hard sealing shut-off. Take full-featured ultra-light regulating valve for example, it’s sealed and piled with wear-resistant alloy for protection, highly reliable, has a leakage rate of 10 to 7, all of which already have met the requirements of shut-off valves.

8. Why can’t sleeve valves replace single-seat and double-seat valves?

Sleeve valves, which first appeared in the ’60s, were widely used in the ’70s worldwide. Sleeve valves account for a large percentage in petrochemical equipment imported during the ’80s. At that time, many people thought sleeve valves could replace single-seat and double-seat valves to become the second-generation products. Until now, that is not the case. Single-seat valves, double-seat valves and sleeve valves are equally used. That’s because sleeve valves only improve the way of throttle, have better stability and maintenance than single-seat valves. But its weight, anti-blocking and leakage indicator are the same as those of single-seat and double-seat valves.

9. Why is selection more important than computation?

Compare computation with selection, selection is more important and more complicated. Computation is only a simple formula. It’s not the formula itself, but rather the accuracy of given parameters that matters. Selection involves a lot of things, being a bit careless will lead to improper selection, which not only results in the waste of manpower, material, and money, but the effects of use are not good, causing a number of problems in use, such as reliability, service life and quality, etc.

10. Why is piston actuator increasingly used in pneumatic valves?

For pneumatic valves, the piston actuator can make full use of air pressure to make the size of the actuator smaller than that of the film type. The thrust is bigger. The O-ring in the piston is also more reliable than that of the film. All in all, it’s increasingly used.