Tips to Help with Choosing the Right Valve for Your Project

Valves are useful pieces of equipment that help control, limit, and shut off flow in a system. In a garden irrigation system, you could use valves to control when different plants get watered. While it is universally agreed that valves are helpful, choosing the right valve can be frustrating. We hear many customers make statements like these: “So many types exist! Some of them do similar things! I don’t know what types of valves to use!”

 

In this article, we will outline what makes each unique valve. For basic users, the most important thing to remember is that a valve does one of two things: shut off or regulate. Some valves can do either/both, but this is a simple way to think of what you need a valve to do. It could help you in picking the right valve. We will now cover each of the major valve categories.

 

Ball Valves

Ball valves are a good example of a shut off valve. They use a spherical seating to stop or allow flow. The ball has a hole through the center, so fluid can pass through when the handle is turned to the “on” position. When the handle is turned 90 degrees to the “off” position, fluid hits the solid side of the ball and is stopped.

 

Butterfly Valves

Butterfly valves can function as a shut off valve or as a regulatory valve. They can fully shut off flow or be kept partially open, which limits flow. Controlling flow can be extremely helpful if you want to decrease pressure in a system. Fluid passing through a small opening will be restricted, making pressure further down the pipeline lower, depending on how far open the valve is. Butterfly valves can also be used as typical 90-degree turn valves, just switching between “on” and “off” positions.

 

Gate Valves

Gate valves, while usually used as shut off valves, can also function as regulatory valves. They use a “gate” that drops or lifts to control flow. When the valve is open, the gate is stored in the tall upper section of the valve, which is where gate valves get their unique shape. Unlike the previous two valves, gate valves are not a quarter-turn valve. They use a hand wheel to open/close whereas ball and butterfly valves use a lever handle. This makes it easy to keep them partially open and also makes operation of any kind easier.

 

Check Valves

Check valves come in many forms. The primary function of check valves is to prevent backflow. This makes them regulatory valves, as they control flow direction. Check valves are controlled by the fluid in the pipeline instead an operator, which makes them different from the valves we have previously examined. Check valves come in many different forms, but we will just cover the two most common types.

 

Swing check valves are a type of valve that uses a swinging function to prevent backflow in a system. The clear PVC swing check valve to the right has a disc that swings open if fluid is passing through the desired direction. If anything tries to flow backwards, the disc is pushed closed, stopping flow. Swing check valves create minimal pressure drop, as the disc is pushed completely out of the way when in operation.

 

The other major type of check valve is the ball check valve. Ball check valves use a ball or half-ball seating to eliminate backflow. When fluid passes the desired direction, it hits the rounded side and passes around and through. If fluid tries to flow backwards, it hits the concave side of the half-ball, pushing the valve shut. Due to the fact that fluid must flow around and behind the ball to get through, ball check valves produce moderate pressure drop.

 

Diaphragm Valves

Diaphragm valves, while not one of the most common types of valves, are very interesting and serve a specific purpose. They are perfect for limiting pressure in a system, making them regulatory valves. These valves have a flexible diaphragm that lowers toward or rises from a “weir” or “saddle” seating. The effect is that only a limited amount of fluid is allowed to pass through.

 

Choosing the Right Valve

In the end, picking the right valve depends on what you need it to do. No two jobs are the same, so there is no one-size-fits-all valve solution. However, you should now have all the information you need to make an informed decision.

 

NICO VALVES CORP. is a leading industrial valve manufacturer in Taiwan and China. The company offers various valves such as check valve, ball valve, threaded end valve, wafer check valve etc. If you have any questions, try to check out NICO’s website and feel free to send inquiry to them.

 

Article Source: https://www.pvcfittingsonline.com/resource-center/choosing-the-right-valve/

Gear Rack and Pinion in Straight Cut and Helical

Tell you some information about precision rack and pinion in this article.

 

Rack and Pinion

 

Rack and Pinion assemblies are utilized to convert rotating movement into linear motion. A gear rack has straight teeth cut into one surface of a square or round section rod with a pinion, which is a small cylindrical gear meshing with the gear rack.

 

There are applications where the gear rack is stationary, while the pinion traverses and others where the pinion rotates on a fixed axis while the gear rack moves. The former is used widely in conveying systems while the latter can be used in extrusion systems and lifting/lowering applications.

 

As a mechanical element to transfer rotary into linear motion, gear racks are often compared to ball screws. There are pros and cons. The advantages of a gear rack are its mechanical simplicity, large load carrying capacity, no limit to the length, etc. One disadvantage though is the backlash. The advantage of a ball screw is the high precision and lower backlash while the shortcomings include the limit in length due to deflection.

 

Types of Gear Rack

Rack and pinion gears are available in two variations:

 

Straight teeth have the tooth axis parallel to the axis of rotation. Straight teeth that run parallel to the axis of the gear.

 

Helical teeth gears provide continuous engagement along the tooth length and are often quieter and more efficient than straight tooth gears and also offer higher loading for same rack width. Helical tooth gears resemble spur gears in the plane of rotation, but include teeth that are twisted along a helical path in the axial direction.

 

Applications of Rack and Pinion

 

Rack and Pinion drives are perfect for a wide range of applications, including axis drives requiring precise positioning & repeatability, travelling gantries & columns, pick & place robots, CNC routers and material handling systems. Heavy load capacities and duty cycles can also be easily handled with these drives. Industries served include Material Handling, Automation, Automotive, Aerospace, Machine Tool and Robotics.

 

JIA CHENG Precision Machinery Co., Ltd. reducer is a worldwide well-known brand. This company also provides high quality couplings, gear row, precision rack, and much more products for customers. If you need more information about planetary reducers and precision racks, try to check out Jia Cheng’s website to obtain further details you need.

 

 

Article Source: http://btprecision.com.au/index.php/rack-and-pinion/

Ceramic Capacitors and Reliable Capacitors Manufacturer

The ceramic capacitor is available in many versions including leaded disc ceramic capacitors, surface mount multilayer ceramic capacitors, MLCCs etc.

 

Ceramic capacitors are one of the most widely used forms of capacitor used in electronics equipment these days.

 

Ceramic capacitors have also been used for many years, being found in valve or tube circuits dating from the 1930s.

 

Today ceramic capacitors area available in a variety of formats ranging from leaded components to surface mount technology, SMT varieties. As leaded versions disc ceramic capacitors are widely available, and as SMT devices, multilayer ceramic capacitors or MLCCs are available in all the common formats. As such these ceramic capacitors are used in virtually every type of electronics equipment.

 

The actual performance of the ceramic capacitors is highly dependent upon the dielectric used. Using modern dielectrics, very high values are available, but it is also necessary to check parameters such as the temperature coefficient and tolerance. Different levels of performance are often governed by the dielectric used, and therefore it is necessary to choose the type of dielectric in the ceramic capacitor.

 

Ceramic capacitors range in value from figures as low as a few Pico farads to around 0.1 microfarads. In view of the wide range and suitability for RF applications they are used for coupling and decoupling applications in particular. Here they are by far the most commonly used type being cheap and reliable and the loss factor is particularly low although this is dependent on the exact dielectric in use.

 

Basics of Ceramic Capacitor

Ceramic capacitors are the workhorses of the capacitor world these days. Ceramic capacitors are used in millions as a result of a combination of their cost and performance. There is a wide variety of dielectrics that can be used as described below, but as the name of the ceramic capacitor suggests, they are all ceramic in nature.

 

In order to ensure that sufficient levels of capacitance can be obtained within a single capacitor package, ceramic capacitors, like types of capacitor have multiple layers. This increases the level of capacitance to enable the required values of capacitance to be achieved.

 

Ceramic capacitors are available now in three main types although other styles are available:

 

  • Leaded disc ceramic capacitors for through hole mounting which are resin coated
  • Surface mount multilayer ceramic capacitors
  • Specialist microwave bare leadless disc ceramic capacitors that are designed to sit in a slot in the PCB and are soldered in place

 

Although it is possible to obtain other types of ceramic capacitor, these are the main types that can be found today. Of these the surface mount variety is used in the greatest quantities by far because of the manufacturing methods used these days for electronic equipment.

 

Capacitors Supplying Expert

Zonkas Electronic specializes in manufacture of Ceramic Capacitors which are applied to various industries. The ceramic capacitor is a capacitor constructed of alternating layers of metal and ceramic, with the ceramic material acting as the dielectric. The company has well-equipped manufacturing facilities that are operated by a team of experts. The strong team comprises of engineers, technicians, marketing professionals, quality analysts and customer services.

 

If you want to learn more information about ceramic capacitor manufacturer and capacitors, try to check out Zonkas’s website: www.zonkas-cap.com to obtain the details you need.

 

 

Article Source: http://www.radio-electronics.com/info/data/capacitor/ceramic-capacitor.php

Simple Introduction of Butt Weld Fitting and Where to Find The Best One?

Have you ever heard or seen the butt weld fitting? If you haven’t, that’s OK. I will have a simple introduction for you. Let us learn some information about butt weld pipe fitting below:

 

What is A Butt Weld Pipe Fitting?

Wellgrow Butt Weld Fittings
A butt weld pipe fitting is designed to be welded on site at its end(s) to connect pipe(s) together and allow change in direction or pipe diameter, or branching or ending.

 

This fitting then becomes part of a system for transporting fluids (oil, gas, steam, chemicals, etc.) in a safe and efficient manner, over short or long distances.

 

Other types of fittings can be threaded or socket welded.

 

What is The Application of Butt Weld Fitting?

 

Butt weld fitting keeps better strength, good for high pressure or high temperature pipelines. So it is used when a welded joint with strength not lower than that of the base metal itself is needed.

 

The Feature of Butt Weld

 

Butt weld is the “best” in terms of strength, fatigue, and corrosion resistance, and temperatures compliance. However, it is more difficult to fit-up and weld properly, needing skilled welder and much time.

 

Where to Find The Best Butt Weld Fittings Manufacturer?

 

When mentioned the stainless fittings manufacturer, I will think of Wellgrow Industries Corp.

 

Wellgrow is the company of specializing in high quality stainless steel and carbon steel butt weld fittings, cast pipe fittings, forged pipe fittings, sanitary fittings, and much more. With over 26 years’ experience in manufacturing and strict control system, Wellgrow always offers the highest quality fittings, best services, and the most competitive price to you.

 

Contact Wellgrow to obtain ideal butt weld fittings.

 

Wellgrow Industries Corp.

No.66, Lane 126, Sec. 2, Shi-Twen Rd., Taichung 40749, Taiwan, R.O.C.

Tel: 886-4-23112576

Fax: 886-4-23112578

Contact Person: Sandy Wang

E-mail: fitting@fittings.com.tw

 

Article Source:

http://ezeflow.com/buttweld-pipe-fittings-faqs/

http://www.tpmcsteel.com/quality/butt-weld-socket-weld/

Agriculture Will Help Drive Global Hydraulic Cylinder Market To 4% A Year Growth

Growing food requirements to sustain increased populations means the agriculture industry will need sophisticated equipment to carry out effective agricultural processes

 

A new report forecast the global hydraulic cylinder market will grow at a CAGR of 4.39% between now and 2020. The hydraulic cylinder industry will see a steady growth during the forecast period due to a continuous demand from the agriculture, construction equipment, mining equipment, material handling equipment, industrial equipment, aerospace, and defence sectors.

 

The report titled “Global Hydraulic Cylinder Market 2016-2020” was released by Research and Marketsand focuses on the current state of the market and the growth prospects of the global hydraulic cylinder market for 2016-2020.

 

According to the report, one of the primary drivers in the market is raising demand for food and fiber to drive agriculture industry. The burst in population figures suggests that by 2050 the population will expand up to nine billion. In order to cater to the growing food requirements to sustain such a large population, the agriculture industry will need sophisticated equipment to carry out effective agricultural processes; the agriculture industry will grow at 3.61% CAGR annually. The mechanization of agricultural processes will help increase the sale of agricultural hydraulic cylinders.

 

To calculate the market size, the report discusses major drivers that are influencing market growth and challenges faced by vendors and the market as a whole.

 

One of latest trends in the market is raising popularity of integrated solution and services. The report says: “Vendors are more focused on providing integrated solutions to its customers. They offer both the product (hydraulic cylinders’ system) and solutions to differentiate themselves from other market vendors.

 

“Integrated solutions help achieve profitable maintenance and aftermarket service revenue. This also strengthens the vendor-client relation. In an integrated system, all components of a hydraulic system such as hydraulic cylinder, valve, and pump are sold as a single unit or kit. For end-users, this solution helps reduce the time frame of procurement. Clients react favorably to solutions that offer better outcome with enhanced performance. These systems provide users with efficiency, engineering, and purchase solution. This lowers the overall operational cost and lead times.”

 

 

By the way, if you want to learn more details about agricultural hydraulic cylinders, I recommend that you can visit the website of ASHUN Fluid Power Co., Ltd... It is the company of specializing in kinds of hydraulic cylinders. Try to check out ASHUN’s product pages to see what products they can offer you.

 

 

Article Source: https://www.africabig7.com/news-articles/global-hydraulic-cylinder-market-to-grow-4-per-cent-a-year-until-2020/

6 Major Furnace Controls

Gas furnaces are the most popular type of furnace installed in residential homes. They are equipped with many controls to make sure safe and efficient operation. It is important to check the furnace specifications and manuals to properly understand how the controls work. Here are five major furnace controls found on a residential gas furnace.

 

Gas Pressure Regulator

 

Because the gas from the main line is subject to different pressures, a gas pressure regulator ensures a consistent gas pressure into the burner manifold. This is usually located in between the supply tank and the main gas valve. This ensures your furnace receives the right amount of gas to burn; not too weak and not too much.

 

Main Gas Valve

 

Just like a gas pressure regulator is needed so is a main gas valve. Its main function is to control the flow of gas from the outside supply line or storage tank to the gas burner. They come in many different shapes and sizes and usually located behind the front panel of the furnace. The gas valves will include a safety shutoff valve that allows you to turn off the main gas line and the pilot gas. In a modern furnace that does not have a standing-pilot light, these main gas valves are called electronic ignition gas valves.

 

Mercury Flame Sensor

 

You will find a mercury flame sensor in a newer furnace with an electronic ignition system. It is made up of a mercury-filled sense end, a capillary tube and an SPDT switch assembly. The sensor end is filled with mercury and heats up from the direct burner flame. When heated, the mercury liquid triggers the switch and opens the gas valve.

 

Thermostat

 

A room thermostat is the main control of when a furnace operates based on the temperature of the room. A thermostat senses changes in air temperature that is being heated and send an electrical signal to open or close the automatic gas valve of your furnace. Most thermostats are wired with the pilot safety valve, limit control and the automatic main gas valve.

 

Thermocouple

 

A thermocouple is the safety device used to detect whether the pilot light is is lit before the main gas valve is opened to supply gas to the burners. A Thermocouple uses a heat-sensing device that senses the heat from the pilot light and then converts it into an electric current allowing gas into your furnace to ignite.

 

Thermopile

 

Sometimes called a thermopile generator or millivolt generator, a thermopile is another safety device for the main gas line and pilot light. Just like a thermocouple, the heat-sensing device is used to detect the pilot light is on. A thermopile is larger and delivers more electricity than a thermocouple. The advantage of a thermopile is it does not require a transformer.

 

Established in 1989, Alpha Brass Controls operates under ISO 9001:2008 and its laboratory cooperates with CSA and CE testing bodies to manufacture commercial gas valves and provides solutions of thermostat, safety valves, and various gas valves for professional cooking industry. If you are looking for related products, please do not miss the website of Alpha Brass Controls.

 

Article Source: http://EzineArticles.com/7420818

Recommendable Solar Panel Manufacturer – Power Master

What is Solar Energy?

By definition, solar energy is energy derived from the sun. The energy can be used directly to heat, and light homes or it can be converted into electricity using solar energy technologies like solar panels. People are increasingly investing in solar energy to save on out-of-pocket costs and get rid of dangerous and expensive power lines.

 

This energy can be harnessed by installing solar panels that can reduce our dependence on other countries for consistent supply of coal to produce electricity. This makes it an attractive energy prospect for most countries that are looking to go completely green in the future.

 

Where to Find The Right Solar Panel?

 

If you are looking for the excellent solar panel manufacturer, I recommend that you can consider Power Master Technology Co., Ltd.

 

This company was established in 1999. Power Master is specializing in Modified and Pure Sine Wave Power Inverters, Solar inverter, Inverter with built in Battery Charger, On Line & Off Line UPS, and designed three stage Battery Chargers.

 

The company with industry integration expertise provides professional solution to accommodate customers’ specific needs in home and office appliances, mobile applications, marine, solar power applications, wind power, electronic equipment, and various applications.

 

If you are interested in learning further details about Power Master solar panel manufacturer, try to check out their website and feel free to send inquiry to them.

 

Article Source: Various Advantages of Solar Energy – Conserve Energy Future

Basic Information of Tool Holders and Static Tool Holders

Tool holders (toolholders) are the physical interface between tooling and the machine tool. They come in a multiple of different machine mount styles from the older R8 style to newer HSK or VDI mount.

 

Tool holders have three main parts: the taper, the flange, and the collet pocket. Driven or “live” tooling is powered, while static tool holder is not.

 

  • The taper is the conically-shaped area of the tool holder that enters the spindle during tool changing.
  • The flange is the part of the tool holder to which the automatic tool changer is attached when the tool holder is moved from the tool changer to the spindle.
  • The collet pocket is the area into which the collet is inserted before being secured by various types of collet nuts.

 

Some tool holders shrink-fit around the machine tool or cutting tool and remain firmly in place. Others are optimized to the smallest size possible to allow for maximum clearances during machining.

 

Tool Holder Types

Industrial buyers can find these types of tool holders at some manufacturers:

 

  • Machine arbors are motor-driven shafts that turn machine tools.
  • Blank adapters can be customized for specific applications or machining tasks.
  • Boring heads can hold a variety of cutting tools, but are used mainly with boring bars.
  • Collet chucks use collets of various sizes to hold machine tools.
  • End mill holders are designed to holdend mills during milling operations.
  • Milling or drilling chucks are used to hold various cutting tools during milling or drilling applications.
  • Outer diameter (OD) and inner diameter (ID) tool holders can hold a variety of cutting tools.
  • Shell or face mill adaptors are designed to hold shell or face mills, tools used to cut surfaces.
  • Side cutter holders are designed to hold side cutter tools.
  • Saw blade holders are designed to hold saw blades.
  • Tapping chucks are designed to hold tapping tools for threading operations.

 

Mounting Styles

When selecting tool holders, buyers need to specify a mounting style.

 

  • R8 is used by a majority of Bridgeport machines manufactured after 1965; however, this taper is seldom used with today’s high speed machining (HSM) equipment.

 

  • Morse taper (MT) is available in four common sizes: #1, #2, #3, and #4. Each size has a tapered fit for fast changes.

 

  • National Machine Tool Builders (NMTB) defined the NMTB taper for all CNC milling machines. The standard is 3.5 in. per ft. and can require a drawbar.

 

  • Caterpillar®developed the CAT® mounting style, sometimes called the V-flange, to standardize the tooling for its machines. Designations such as CAT-40, CAT-50 and CAT-60 refer to the NMTB taper size. (Caterpillar and CAT are registered trademarks of Caterpillar, Inc.)

 

  • BT is similar to CAT, but is balanced and symmetrical around the axis of rotation. BT uses the same NMTB body-taper measurement notations but uses a metric pull-stud thread.

 

  • Hollow shank tooling (HSK) is designed to increase grip as spindle speed increases. It does not have a pull stud and is often used with HSM. VDI is designed for quick-change tooling and is available in both dovetail and straight-shank versions.

 

  • Tool holders that use base mount tooling (BMT) and straight shank tooling are also available.

 

Tool Holder Sizes

The projection length of the tool holder is the distance from the gage line (the reference mounting surface) to the end of the tool holder. If specifying a collet pocket is applicable, buyers can choose an ER or TG type.

 

Features and Applications

Tool holders can be coolant-fed or have a coolant-thru flange. Some are optimized to the smallest size possible to allow for maximum clearances during machining. Each tool holder is designed for a specific application and tailored to optimize both machine performance and operational efficiency.

 

Tool Holder Manufacturer

Where to find the excellent tool holder manufacturer? I will say Shin-Yain Industrial Co., Ltd. is the recommendable static tool holder manufacturer. The company is specializing in numerous tool holders, like collet holder, static tool holder, CAT tool holder, BT tool holder etc. all can be found. If you have any interest, try to check out SYIC’s website and send inquiry to them.

 

 

Article Source: Tool Holders Information | Engineering360

Excetek : The Certificate of 2017 D&B TOP 1000 SMEs Elite Award

The Certificate of 2017 D&B TOP 1000 SMEs Elite Award

Congratulations! Excetek is awarded the Certificate of 2017 D&B TOP 1000 SMEs Elite Award.

The Certificate of 2017 D&B TOP 1000 SMEs Elite Award
With 11 years of experience manufacturing Wire Cutting EDM, Die Sinking EDM, and Small Hole Drilling EDM, Excetek always sticks to the principle of trustworthy and Innovative. In 2017, Excetek has received a further recognition from Dun & Bradstreet (D&B): the Certificate of 2017 D&B TOP 1000 SMEs Elite Award.

 

This award attests to Excetek’s excellence in the industry. Excetek would like to proudly attribute this honor to all of our customers around the world. Excetek could not be growing in the EDM machines industry without our customers’ supports.

 

Dun & Bradstreet

Dun & Bradstreet was founded in 1984, and is the world’s leading source of business information and insight, with a commercial database of some 230 million enterprises around the world.

 

The award was presented to Taiwan’s top 1000 small- and medium-sized enterprises (SME), in recognition of their growth and contribution to the country’s economy. And these companies will continue to drive the local economy.

 

Learn more information about Excetek or Dun & Bradstreet, try to check out below:

 

Excetek Technologies Co., Ltd.

Website: http://www.excetek.com

 

Dun & Bradstreet

Website: http://event.dnb.com.tw/

 

Press Brakes vs. Folding Machines – Which Is Right for You?

There is a lot happening on the fabrication floor. Often time’s conflicts arise as to which machine to use for certain jobs and this can lead to confusion.

 

While at first glance it may seem like press brake machines and folding machines are the same tool made to tackle the same jobs, the truth is that they both have their niche and should have a place in your factory.

 

Let’s take a look at the two fabrication tools and see just how alike and different they really are:

 

Press Brakes

The first thing that sets a press brake machine apart from a folding machine is the most obvious: force. The punch of a press brake uses a lot of force, which means it is geared for heavier and thicker sheets of metal. It still offers precision and accuracy, but it just does so with much more substantial sheets of metal.

 

This means that press brake machines will produce stronger pieces meant for support. Also, press brakes should probably be used for applications that only require one tooling setup.

 

Folding Machines

While folding machines also bend metal, the difference between it and a press brake is how that bend is achieved. Folding machines use much less force, leading it to be used for much thinner sheets.

 

Where the force of a press brake could potentially scratch and damage a very thin sheet, a folding machine is much more delicate and produces items where look and style are paramount.

 

Folding machines will be much better and quicker with panel work of all sizes. They are also better for jobs require multiple tooling changes.

 

Can They Coexist?

Absolutely. It can be very beneficial to have both on your fabrication floor in more ways than one. While a press brake machine can handle panel work, it is going to require more time to tackle a project that a folding could knock out more accurately and with fewer operators.

 

Folding machines can free up your press brake machine by taking on smaller, more delicate tasks and allow it to be more productive – think of it as a companion instead of a replacement.

 

Reliable Hydraulic Press Brake Machine Manufacturer

Yeh Chiun Industrial Co., Ltd. is the outstanding press brake machines supplying expert in the industry. If you are interested in learning more information about hydraulic press brake machines, do not hesitate to contact with Yeh Chiun.

 

 

Article Source: http://www.fab-line.com/press-brake-vs-folding-machine-which-is-right-for-you/