Category Archives: Manufacturer

What Is a Swiss Lathe?

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A Swiss lathe is a style of lathe in which the collet, or holding mechanism, is recessed behind a guide bushing. Swiss lathes are also being known as Swiss turning centers, Swiss automatic lathes or Swiss screw machines. A Swiss lathe is different from a traditional lathe in that the collet, which holds the bar stock, is not directly exposed to the tooling and bed of the lathe. This type of configuration allows this machine tool certain benefits over a traditional type of lathe.

 

The Swiss lathe’s advantages over a traditional lathe is largely because it uses a guide bushing. The purpose of the guide bushing is to provide additional support to the stock material as the part is being turned or machined. The guide bushing fits closely, but not tightly, around the bar stock material. Supporting the bar stock material, a guide bushing functions in a similar manner as a steady rest would on the carriage of a traditional lathe.

 

Swiss-style lathes generally hold better tolerances on parts because the turning operations are performed within close proximity to this guide bushing. The guide bushing provides rigidity to the turned part because only a minimal amount of stock is exposed after leaving the bushing until the turning tools are engaged. With the rigidity that the guide bushing imparts on the stock, these machines are particularly well adapted for holding tight tolerances. Another payoff is the Swiss style lathe’s ability to turn small-diameter parts or parts with large length-to-diameter ratios. Tool chatter typically is minimized because of the tool/guide bushing juxtaposition.

 

There are two types of Swiss lathe machine tools. Mechanical lathes use cams, gearing systems and mechanical linkages to move the headstock and manipulate the collet and tooling. These types of machines have been replaced in many places by computer numerical control (CNC) Swiss lathes.

 

A CNC Swiss lathe will utilize many computer-controlled components. A great number of these components can be adjusted while the machine is in operation. The advantage of a CNC Swiss lathe is that the precision of a traditional machine is maintained while the functionality of the machine is increased with the addition of a computer and its controlled components.

 

Modern types of CNC Swiss lathes might include multiple axis and live secondary tooling, moving tail stocks or secondary spindles. Depending on the desired part configuration, some Swiss lathes have the capability of turning and machining parts complete. This eliminates the need for secondary operations.

 

A disadvantage with all Swiss lathes is the bar stock remnants. These generally are longer than those found on a traditional type of lathe and generally would be considered scrap. Long remnants are the result of the configuration of the collet and guide bushing in this machine.

 

CNC-TAKANG is one of the leading machine tools manufacturers in Taiwan. We are efficiently organized with top engineers with more than 20 years of manufacturing experience. In order to satisfy ever-changing machining demands, we always devoted ourselves to developing new products and striving for innovative R&D.

 

Delivering the best quality machines is our promise for all clients. For more details about swiss lathe and more lathe machines, welcome to visit the website of CNC-TAKANG or contact with us directly!

 

Article Source: http://www.wisegeek.com/what-is-a-swiss-lathe.htm

 

Chest Waders – Advice on Picking Your Next Set

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Having a good pair of chest waders out in the swamps can make the difference between a great trip and a miserable trip. Anyone who has pulled on a pair of bad waders knows that miserable feeling you get when you feel water trickling in, or the nasty chill of cold water in a fast-moving river. When you are looking for a pair of chest waders you are going to want to match the wader to the most common activity.

 

You have essentially two choices in wader style. Stockingfoot and Boot Foot. A stocking foot chest wader is like a pair of kids pajamas. They are completely waterproof, but the feet are like stockings. You need to purchase a pair of separate boots to protect the stocking feet. Boot foot chest waders are just like they sound a pair of waders with a built-in boot. The main problem with boot foot waders is that they can be a bit heavier and clumsier when working through water with a muck bottom. The other issue we have noticed with boot foot waders is that they tend to begin leaking where the top of the boot meets the leg of the wader.

 

When looking for wading boots to go over a pair of stocking-foot waders, order one size larger than your shoe size. When considering the soles on the boots, consider that cleated soles are durable general purpose soles. They are good on wet banks, mud and snow, but not so safe on rocks underwater. Felt soles are excellent on bare rocks and concrete and under water, but very slippery on wet grass, snow, and slimy surfaces. Felt plus a cleated heel can be a pretty good compromise.

 

As far as we are concerned, there are only two materials to consider when buying a set of chest waders. Breathable Membranes and Neoprene. Breathable have advanced nicely since they were introduced a few years ago. They are well suited for warm weather fishing, and great if you plan to do a ton of walking in them. They can be very expensive, but prices have been coming down.

 

Neoprene is by far the best material for cold conditions. We use neoprene for all of our waterfowl hunting and early spring fishing. Neoprene chest waders can be susceptible to punctures, so you need to be very careful in them. Repair kits are available for neoprene waders and you would be wise to keep a kit on-hand when out in the field.

 

Get the Right Wader for You

PACIFIC EAGLE Enterprise Co., Ltd. is a professional neoprene chest waders manufacturer in the industry. We have engaged in manufacturing of neoprene, hunting and fishing field products for over 25 years.

 

At Pacific Eagle, to provide our customers with highest quality products is always our top priority. To ensure all the products being in good quality and in best condition, each of our operational facilities is staffed with well-experienced personnel. If you need more information about chest waders, welcome to visit the website of Pacific Eagle or contact with us directly!

 

 

Article Source: http://EzineArticles.com/4086078

The Growth of UAVs and the Risks It Poses to the Public

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Unmanned Aerial Vehicles (UAVs) are being used for a number of civilian and commercial purposes, from photography and videography, survey and mapping, inspections, transport to network swarming where they work together to complete a task. This article discusses some of UAV’s current commercial applications and the risk that the growth of UAVs poses on the public.

 

Agriculture and Wildlife

 

UAVs can be used to monitor many aspects of agriculture. Apart from offering an aerial inspection of the crops, they can help in inspecting soil erosion and other parameters that are hard to observe from the ground. In addition to agriculture, they can prove to be quite helpful in forestry too. They can take photos of the forests as well as the wildlife present in them to keep a steady count of the animals living in there. Moreover, they can be used to assist in putting out forest fires that may erupt from time to time.

 

Security and Law Enforcement

 

The borders as well as internal security can be very well taken care of with unmanned aerial vehicle technology. They can also play a crucial role in law enforcement too. They can be used for assisting the police in catching criminals and collecting evidence, search and rescues, surveillance and more.

 

Commercial Sector

 

UAVs may replace manned vehicles in the commercial field as some services have little need for human involvement, including transporting commodities from one place to another with ease.

 

Despite all of the promise that UAVs have shown, the commercial use of these aerial vehicles is still in its initial developmental phase. You may not see transport activities being carried out with the help of UAVs in the near future because of the risks they pose.

 

Safety Risks Related to UAV Transport

 

It is the duty of the national airspace authority to make sure that the airspace remains safe. However, unmanned aerial vehicle transport poses a great threat to airspace safety as it is extremely hard to control the drone’s flight pattern especially when it is flying into an area where various airplanes carrying passengers and goods are present. The following are some of the safety risks that may arise because of UAV transportation.

 

Air Collisions

 

The risks of air collisions increase when an airborne vehicle is not operated by a sensible and trained pilot. So, when we are talking about a UAV which isn’t controlled by any pilot, the chances of a collision happening in the air multiply greatly. While the pilot of a manned aircraft can detect the presence of vehicles flying in their vicinity and take evasive action quickly, a drone cannot make that call unless it is directed to do so from the ground. Thus, UAVs are more likely to get involved in an air collision than piloted aircraft. Unless this safety issue is resolved, the future of UAV transport looks questionable.

 

Ground Collisions

 

It is not only the collision of the UAV with other aircraft in the air that may cause great damage. They can collide with objects on the ground too, causing damage to both people and their properties. There is always a possibility of the UAV going berserk due to loss of signal from the operator or some technical fault in the system. This will pose a risk of the UAV falling from the air and crashing in a populated area. This may lead to the debris entering the houses or people getting killed as a result of the direct impact.

 

System Reliability

 

When it comes to relying on the devices and gadgets solely based on technology there is always an apprehension because of the history of failures that one has seen through the years. UAVs controlled from the ground that are operated using human intelligence can be manipulated as the on-ground pilot take decisions based on the situation. However, such systems too have been seen to crash and become the major cause of loss of lives during transport. The most common reason for accidents of this sort has been failure of various parts and machinery of the aircraft. So, when it comes to leaving decision making to machines that only operate as per pre-fed instructions, the risk of accidents increases many folds. It will take a lot of research and analysis to produce a system that is reliable in future. However, as of now the use of UAVs is still under observation and it will take many more years for them to share the airspace with manned aircraft.

 

Insurance Issues

 

Getting insurance is also an important issue as people find it extremely hard to get their UAVs insured. The main problem cited by many insurance providers is the susceptibility of the system to failure. In addition to this, the safety issues related to the UAVs is another concern why insurance companies are reluctant to insure these aerial vehicles.

 

Privacy and Security Issues

 

Privacy is a major concern associated with drone use as no one wants UAVs peeping into their homes while flying past them. Moreover, the UAVs themselves are not very safe and can be hacked any time. If a drone is hacked by terrorists then they can use it for their ulterior motives, risking the life of millions.

 

So, because of all of these issues and concerns, governments all over the world are reluctant to go forward with unmanned aerial vehicle transport for now.

 

Carbon-Based Technology, Inc. is the expert of devoting in complete system design, integration, manufacturing, and global marketing of Unmanned Aircraft System. If you are interested in unmanned aerial vehicle, welcome to visit our website to learn further details and feel free to contact with Carbon-Based Tech.

 

 

Article Source: http://EzineArticles.com/9413943

The Advantages of Using an Adjustable Seatpost with Your Cycle

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One of the most highly demanded and a favored product by cyclists around the world is the adjustable bicycle seatpost. In the past, cyclists relied on fixed seatposts, where the height of the seat could only be increased or decreased by adjusting the seatpost clamp through the manual operation of wrenches. But, the use of it has brought a sort of revolution in the world of cycling. Only a simple push of a remote button switch mounted around the handle that is connected by a wire enable riders to increase or decrease the height of the seat, even while riding. Also known as a dropper seatpost, the innovative product is steadily winning the hearts of cycling enthusiasts.

 

Easy to Fit in Your Cycle

 

Riders do not need to buy a new special model of cycle so as to put a new adjustable seatpost. Manufacturers commonly produce adjustable seatposts in the BMX industry standard outer diameter of 27.2mm, making it usable across several varieties of bicycles. Adjustable seatpost with outer diameters of 30.4mm, 30.9mm and 31.6mm are also widely available in the markets.

 

Unparalleled Comfort

 

Different seating positions are required for easy maneuvering of the cycles across different terrains. All cyclists must have experienced that the position which would seem to be absolutely comfortable on a straight road could be really be hard around difficult uphill or downhill terrain. But being able to control the size of the seat with an adjustable seatpost, offers riders the flexibility to comfortably navigate across different terrains.

 

Higher Efficiency and Stability While Riding

 

When the adjustable seatpost is up, pedaling becomes more efficient as cyclists can use the whole range of motion of their leg muscles. When the trail points downhill, dropping the seat allow cyclists to lower their center of gravity, in turn providing more riding stability. Thus, the rider has the freedom to choose the best seating position, based on their need to either ride faster or roll comfortably. All ‘Tour de France’ riders use adjustable seatpost with their cycles because of this very reason.

 

Different Variations Available in the Market

 

Several manufacturers currently produce different variants of adjustable bicycle seatposts based on different technologies. The most advanced as well as costly versions are operated by hydraulics. Similarly, there are also seatposts that are operated by air pressure. But the most commonly available ones are spring based variations. Hydraulics and air pressure operated seatposts require higher maintenance and are vulnerable to leaks, while spring operated versions often last longer and are easier plus cheaper to maintain.

 

Buy the Adjustable Bicycle Seatpost That Gives You the Best Value

 

Whether you are an urban rider or an adventurous mountain bike rider, seek the dropper seatpost that provides you the best value. Choose a product that is comfortable to use but isn’t too expensive to buy and maintain either. Spring operated versions could be one of the better choices. However, in case of heavy duty mountain bike riding getting a hydraulic version can be worth it as well.

 

G-MA Engineering Co., Ltd. is the leading and professional titanium bike parts manufacturer in the industry. If you are interested in learning more information about bicycle seatpost and other bike parts series, welcome to visit the website of G-MA to obtain further details. Any questions you have are also welcome to contact with us.

 

 

Article Source: http://EzineArticles.com/9238895

 

Planetary Gearbox: Applications and Advantages

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Planetary gearbox is named so due to its resemblance to the solar system. The components of a planetary gearbox include a sun gear, ring gear and planetary gears. The sun gear is the central gear which is fixed in the center, ring gear (annulus ring) which is the outer ring with inward-facing teeth, and the planetary gears which rotate around the sun gears and mesh with both the sun and ring gear.

 

The sun, ring and planetary gears of a planetary gearbox are constructed of aluminum, stainless steel or brass. The material used varies depending on the manufacturer.

 

Note: Gears made from steel materials can be noisy when coming into contact with other gears and also make them prone to wear.

 

Applications of Planetary Gearboxes

 

Planetary gearboxes are used in applications requiring low backlash, compact size, high efficiency, resistance to shock, and a high torque to weight ratio.

 

  • Slewing Drives
  • Lifts
  • Cranes
  • Machine Tools
  • Automotive

 

Advantages of Planetary Gears

 

  • High power density
  • Compact
  • Highly efficiency in power transmission
  • Greater stability
  • Load distribution among planetary gears

 

Disadvantages of Planetary Gears

 

  • High bearing loads
  • Complex design
  • Inaccessibility

 

Jia Cheng manufactures planetary gearboxes that are applied in conveyor drives, winch drives, mixers, swing drives, wheel drives, augers and numerous other types of applications. They were specifically developed for use with state-of-the-art technology, providing tight integration of the motor to the unit. Our precision planetary gearbox provides a number of advantages, such as in servo control applications, good mechanical rigidity, accurate and precise positioning, in operation with low institutional backlash, high efficiency, high input torque, smooth operation, low-noise and other features.

 

If you are interested in learning more details about planetary gearbox, welcome to visit the website of Jia Cheng and feel free to contact with us.

 

Article Source: http://www.anaheimautomation.com/manuals/forms/gearbox-guide.php#sthash.jpzn9pEh.dpbs

 

What is Super Bright LED Light?

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If you are planning to buy a quality LED flashlight, you should make sure that it would be able to provide good and clear lighting. There are many flashlight manufacturers in the market, who are providing super bright LED lights, which can be used in dark areas. These LED are capable of lighting up to 300 meters. This is a marvelous discovery of the new and advanced technology. Even though LED was in the market from many years, most of the people did not know the real benefits of it. As people started using it for different purposes, LED manufacturers started producing more advanced and powerful LED lights.

 

However, installing LED to cars has become a new trend today. Most of the people who look for an option to modify their cars and other vehicles use LED bulbs. Even though most of the people use the ordinary LED bulbs, few opt for super bright LED light, which will provide them more power beams than the ordinary ones. These LED come out with four output levels; therefore, you have an option to set it to low, medium, high or with turbo.

 

If you research on the web or visit your nearby store, you will be able to find different types of super bright LED light series, which are obtainable in different colors. Apart from the car modification, LED is also used for many industrial purposes. These bulbs can be also fixed for bikes with the help of a LED kit. Finding the right accessories for your vehicle is very important as it might enhance your driving experience.

 

DAINA is the professional LED manufacturer in Taiwan. We provide a variety of high quality LED lights such as super bright LED lights, oval LED, rectangular LED, multi-color LED and so on products for customers. Learn more information about LED lights, welcome to visit our website and feel free to contact DAINA.

 

 

Article Source: http://EzineArticles.com/3710498

What Are the Different Types of Metal-working Machinery?

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Metal-working machinery includes a wide variety of equipment used to cut and shape metal. These machines offer an alternative to shaping these metals by hand, resulting in greater precision and higher production levels. They can be found in many metalworking shops, manufacturing and industrial facilities throughout the world, as well as in the homes of hobbyists. Metalworking machines come in many forms, including lathes, milling machines, and planers. This equipment also includes basic tools used to modify the surface or finish of metal, including grinders, polishing equipment, and embossing machines.

 

Lathes are one of the most widely used types of metal-working machinery. These devices rotate a metal object around a spindle. As it rotates, tools and cutting bits shape or cut the metal into the desired form. These machines can range from small desk-top units to large floor models. While some may be manually operated, most rely on computer programming using computer numerical control (CNC) software.

 

The milling machine can be thought of as a more advanced version of the lathe. This metal-working machinery holds an object in place as the worktable moves around it. Unlike the lathe, milling machines can modify metal across three dimensions, not just two. Micro milling machines can even be used to cut and shape items that are invisible to the naked eye. Like a lathe, milling equipment generally relies on CNC software for precise control and programming.

 

A metal planer can be used to cut or shave metal in a single linear direction. These machines hold the metal object stationary, and then run a cutting blade across the surface to smooth or flatten the material. Planers can also be used to cut slots or other shapes into the face of a product.

 

Metal-working machines can also include equipment used to bend and shape sheet metal. For example, a metal brake creates folds or bends in sheets of steel and other metals. Similar machines are used to stamp or emboss patterns into metal, or to roll it flat. These machines can be either manually operated or controlled using a CNC system depending on where they are used.

 

Extruding and casting equipment are other types of metal-working machinery. In casting, workers make a mold of an object and use it to shape molten metal. Extrusion involves forcing hot metal through a die. The shape of the die determines the shape and profile of the final product.

 

SEHO provides much different second hand metal-working machinery such as CNC grinding machinery etc. machine tools. If you are interested in learning more information about used machinery, welcome to visit our website and feel free to contact with SEHO Industry Co., Ltd.

 

 

Article Source: http://www.wisegeek.com/what-are-the-different-types-of-metalworking-machinery.htm

 

Glass Fibers and Fiberglass Fabrics Information

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Glass fibers and fiberglass fabric consist of bulk, chopped fibers or continuous strands of glass. Glass fibers and fiberglass fabric is used in reinforcing plastics and composites as well as other specialized electrical and thermal applications. Fiberglass cloth is frequently used to reinforce other plastic materials. Glass fiber reinforced plastic (GRP) or glass fiber reinforced epoxy (GRE) are commonly called fiberglass.

 

The glass fiber used to create fiberglass material is made by extruding very thin strands of silica-based monofilament. Glass is a unique amorphous solid, meaning it doesn’t have an underlying crystalline structure in the solid state, but rather behaves like a very viscous liquid. Glass fiber lends itself to woven fabric because the thin fibers can easily bend. Fabric made of glass fibers has high tensile strength, dimensional stability, high heat and fire resistance, as well as resistance to many chemical compounds. Fiberglass fabric is also used to dissipate heat, and has electrical properties that make it useful in electronic components.

 

Applications

Glass fibers and fiberglass fabrics are commonly used in composite construction, including materials used in boat building. Light weight fiberglass cloth is used with a resin to produce a waterproof surface. Heavier woven fiberglass fabric can be used for greater strength and rigidity.

 

Glass fibers and fiberglass fabrics are also used to create combination or specialty fabrics. Glass fibers and fiberglass fabric may be combined with carbon fiber or aramid fibers to make laminates and moldable fabrics for canoes, kayaks, and other high strength, low weight applications.

 

Standards

Glass fibers and fiberglass fabrics must adhere to certain standards and specifications to ensure proper design and functionality.

 

Delphi DX300340 – This specification covers the properties of a Polyamide 6, 40% glass filled, impact resistance modified injection molding grade used for the manufacture of parts that require high stiffness and toughness under extreme conditions (Example: airbag containers).

 

GMW15890 – This specification covers the properties of polypropylene reinforced with long glass fibers. It covers injection molding types for manufacturing of technical parts requiring high structural stiffness.

 

JIS C 6832 – This standard specifies the dimensions, transmission requirements, mechanical requirements, environmental requirements and the test methods of silica glass multimode optical fibers using silica glass as a core and a cladding.

 

Taiwan Electric Insulator Co. Ltd. is a world leading manufacturer of fiberglass fabrics and composite materials, with the technology, knowledge and ability to produce the highest grade composite material to specific customers’ needs and requirements. Welcome to visit TEI’s website to learn more information about fiberglass fabrics, and feel free to contact with us.

 

 

Article Source: http://www.globalspec.com/learnmore/materials_chemicals_adhesives/composites_textiles_reinforcements/glass_fibers_fiberglass_cloth

A Wonder in the Materials World: Stainless Steel Sheet

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Material scientists have created stainless steel, the most versatile alloy which can be seen in its many applications because of its corrosion resistant properties

 

The introduction of a minimum of 12% chromium into the steel alloy renders it corrosion resistant. This resultant product is called stainless steel sheet. There are many grades according to the alloy content and they are named variously as austenitic, martensitic, ferritic, precipitation hardening, super and duplex alloys.

 

Popular Grades of Stainless Steel

 

Austenitic grades of alloys which are stainless and non-magnetic. These cannot be hardened by heat treatment. Commonly used austenitic alloys are iron-chromium-nickel steels. The common grades are the 300 series which are used for their stainless properties and unusually good mechanical properties. The basic grade of this series is the 304. The L grades of this series are the low carbon grades (as in 304l) which provide extra corrosion resistance after welding. The carbon content is kept at 0.03% or less to avoid carbide precipitation. Higher carbon content is useful when the metal is subjected to very high temperatures and has to retain its strength.

 

The two other popular grades in this series are 316 and 317

 

Martensitic Grades of Alloys which are corrosion resistant and amenable to hardening by heat treatment. These are chromium steels with no nickel content. They are magnetic. The most common grades in this are the basic 410 and 420, where 420 has increased carbon more than 410 to improve its mechanical properties

 

Ferritic Grades – Even more corrosive resistant than the martensitic grades, these are highly resistant to cracking due to stress related corrosion. These are also magnetic with only chromium and no nickel. They are considered inferior to austenitic grades, but superior to martensitic grades. 430 is the base grade, which is used commonly.

 

Physical Forms

 

They come in a variety of forms like coils, sheets, bars and plates

 

Applications

 

For its easy maintenance and corrosion resistant properties, stainless steel sheets find diverse applications in:

 

  1. Modern architecture

 

  1. Food processing industry

 

  1. Industrial uses, such as chemical and fuel tankers, chemical plants and petrochemical plants, pharmaceutical industries (for hygienic environment)

 

What are Stainless Steel Sheets Standards?

 

There are many world recognized standards of stainless steel sheets which categorize the stainless steel sheets into different grades as explained above. These may be voluntary grading agencies, country specific agencies or associations of steel producing companies in a particular country. Sometimes any grade of steel marketed by a company will mention different standards of grading having been applied to it.

 

How the Demand for Stainless Steel Plated is satisfied?

 

There are suppliers worldwide who have industry specific grades available for their customers. They have websites and can be contacted easily for further details through a ‘contact us’ webpage. They are also present in social media like Facebook and Twitter. It does not matter if the supplier is from another country in this era of globalization. There is not much difference in the way of doing business.

 

Future of the Stainless Steel Sheet Industry

 

Since stainless steel sheet is such a versatile material, there is ongoing research and more grades are added to the existing ones as they are developed and tested, having unique qualities and different applications

 

The invention and countless applications of stainless steel sheet is a real wonder in the materials world and the future of the steel industry is bright with companies worldwide engaged in supply of this wondrous alloy.

 

STANCH, established in 1980, is one of the market leaders in refined stainless steel industry. We have devoted ourselves to providing high quality products and a wide range of stainless steel finishes. With experienced and advanced technology, STANCH is able to give full flexibility in customizing your needs. Learn more information about stainless steel sheet, welcome to contact with Stanch Stainless Steel Co., Ltd.

 

 

Article Source: http://EzineArticles.com/9580014

 

How do Pilot Operated and Direct Operated Solenoid Valves Work?

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What are Solenoid Valves?

A solenoid valve is an electro-mechanical valve that is used to control the flow of liquid or gas. The solenoid starts by converting an electrical signal into a mechanical movement. The signal is then sent to a coil and the movement then occurs inside of the valve. Solenoid valves are usually be described as pilot operated or direct operated/acting.

 

Pilot Operated Solenoid Valves

2 way pilot operated solenoid valves have two chambers separated by a diaphragm. The upper chamber is connected to upstream through a pilot hole in either the cover or diaphragm. The media exerts a pressure that acts on the upper side of the diaphragm and keeps the valve closed. When the coil is charged the core lifts off the orifice seat allowing the operating chamber to de-pressurize. The thrust of the upstream pressure under the diaphragm continues, lifting the diaphragm and opening the valve.

 

Pilot operated solenoid valves only operate with a suitable upstream pressure differential and do not operate at zero pressure. Also a minimum pressure differential across the valve is required to keep them open or closed. Pilot operated solenoid valves can provide high flow rates at high pressures with lower power consumption.

 

Direct Acting Solenoid Valves

Direct acting solenoid valves do not use a diaphragm, their seal is part of the moving core. Two way NC direct acting solenoid valves have a spring that holds the core against the seal. When the coil is charged the spring is overcome and the seal is lifted from the orifice seat thus opening the valve and allowing the media to pass through the valve.

 

Two way NO direct acting solenoid valves have a fixed core which usually in the bottom section of the armature tube. The armature is located in the upper part of the valve. A stem passes through the fixed core and is coupled to the seal. This is held off the seal by means of a spring and makes a seal when the coil is energized, thus closing the valve.

 

Three way direct acting solenoid valves work in almost the same way as a two way direct acting solenoid valve. The fixed core has an exhaust orifice running through it. The plunger has an upper seal and lower seal allowing flow to or from either the body seat or exhaust.

 

Direct acting solenoid valves are used when there is no line pressure applied. Typical applications would include a cleaning line when a pump supplies bursts of water through the line. A direct operated solenoid valve would remain closed, even when no pressure is being applied (i.e. in between the busts of water). This is in contrast to a pilot operated valve, which requires some pressure for the valve to stay closed.

 

Excellent Solenoid Valve Manufacturer in Taiwan

SHAKO is one of leading and the largest professional pneumatic solenoid valve manufacturers in Taiwan. With rich experiences and in-deep knowledge, we are able to provide pneumatic solenoid valve products with excellent high quality & rapid service for various industries. If you need more information about solenoid valve series, welcome to visit the website of SHAKO.

 

 

Article Source: http://www.bmengineering.co.uk/news/solenoid-valves/How-do-pilot-operated-and-direct-operated-solenoid-valves-work