What are Electric Immersion Heaters and Their Pros and Cons?

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Here, we tell you what you need to know about immersion heaters – including who needs them, the pros and cons of having an immersion heater, and why it could be costing you more than necessary to heat your water.

 

Plus, find out how you could use an immersion heater to get free hot water.

 

What is an immersion heater?

An electric immersion heater is an electric water heater that sits inside a hot-water cylinder. It acts a bit like a kettle, using an electric resistance heater (which looks like a metal loop or coil) to heat the surrounding water.

 

Immersion heaters are connected to their own power supply via a cable. They can be easily switched on and off, as there’s no need to constantly heat the water in your hot-water cylinder. Immersion heaters can either be used as a property’s primary water heater, or as a backup water heater for combi boilers.

 

Who needs an immersion heater?

Most households will use a combined central heating/hot water boiler to heat their home and provide hot water. However, some households may choose to have an immersion heater too, as a backup.

 

Other households, particularly those with older heating systems, use electric immersion heaters as their only source of hot water. Most immersion heaters are found in rented housing.

 

Immersion heater – pros

  • If your immersion heater has a thermostatic control, it will automatically turn off when it reaches the temperature you set on the thermostat.

 

  • Immersion heaters are not connected to your boiler. So if your boiler breaks down, you can still generate hot water for your home.

 

  • If your immersion heater has a well-insulated jacket, it can keep water hot for several hours after it switches off.

 

  • Time-of-use tariff customers can set timers so their immersion heater switches on during cheaper off-peak hours.

 

  • You can usually turn your immersion heater on or off by simply flicking the switch on the wall socket.

 

Immersion heater – cons

  • Heating water using electricity is more expensive than heating water with gas.

 

  • A typical immersion heater uses 3 kilowatts of electricity an hour, so it will cost the average house about 50p an hour to run.

 

  • Most households will need to run an immersion heater for at least a couple of hours a day to get the water hot enough – costing at least £360 a year.

 

  • An immersion heater needs a thermostatic control, otherwise it can heat the water to far too high a temperature.

 

  • Some heating engineers may recommend you leave your immersion heater on 24/7 – however, this can be hugely expensive unless it has a thermostatic control.

 

  • Be aware that you need to heat the water in your immersion heater to above 50°C to kill off bacteria.

 

Established in 1971, Cheng Tay Heater & Instrument Co., Ltd. has been in the business of developing and introducing the latest machinery while pioneering new electrical heating techniques. We can supply tailor-made or prototype heating elements for the entire scientific and industrial spectrum. If you need more information about electric immersion heater or other heaters, welcome to browse our website or contact with Cheng Tay directly!

 

 

Article Source: http://www.which.co.uk/reviews/home-heating-systems/article/home-heating-systems/immersion-heaters

What Is a Flanged Ball Valve?

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Based on the ball-socket design, the ball valve is an in-line device shaped like a ball with an orifice through its center. When oriented correctly, the ball valve allows product to flow through easily. By grabbing the handle and turning the ball perpendicular or sideways, an individual can stop the flow. Found in almost every industrial environment, a flanged ball valve helps to control the flow rate through any plumbing application. The flanged ball valve is similar to the standard ball valve, but has mating connections or flanges that allow for quick and easy replacement of a damaged valve.

 

For instance, a valve without flanges would require an individual to manually cut piping and then reconnect it with a new valve in place. This reconnection can introduce additional hazards, as well as increased costs. In other words, some plumbing connections might require welding, soldering, or machining threads onto the ends of pipes for threaded applications.

 

When replacing a flanged ball valve, an individual should look for the bolted connections on either side of the valve. Loosening and removing the bolts from the flanges will allow the new ball valve to replace the broken ball valve. The modular design of flanged ball valves lends to their popularity, since a new flanged ball valve can bolt right into place of an old one. This ease of replacement is why flanged ball valves are commonly used when rapid repairs are essential.

 

A variety of flanged ball valves are available to cover nearly any application. Regulations exist to govern the varying sizes one may encounter. In the United States, for example, the American Society of Mechanical Engineers (ASME) governs the regulations, or codes. These regulations ensure that one flanged ball valve bears the same specifications as another, even if created by different manufacturers. The fact that one ASME flanged ball valve can replace another of the same size increases the interchangeability.

 

Valves come in many different configurations, such as the knobs on the kitchen sink, which are typically ball valves. These are generally found at some midpoint in a typical plumbing configuration. The best application for a ball valve is to quickly and easily stop product from flowing through pipes or plumbing, allowing for repairs to take place. A flanged ball valve has a variety of plumbing applications, mostly industrial, yet features the simple operation of the un-flanged variety, which requires merely moving a handle one quarter of a turn. In this model, flanges on either side of the actual valve make replacements of a broken valve relatively easy.

 

Wellgrow Industries Corp. is the professional ball valve and gate valve manufacturer in the industry. We offer a variety of valves likes flanged ball valve, globe valve, butterfly valve, diverter valve and so on products. If you are interested in learning further specification and details about flanged ball valve series, welcome to browse Wellgrow’s website or contact with us directly!

 

Article Source: http://www.wisegeek.com/what-is-a-flanged-ball-valve.htm

Important Components in Fluid Power Industry – Hydraulic Valves

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Hydraulic valves are essential as they help control the flow of any liquid specifically, oil, in the system. Choosing the most suitable valve(s) is crucial to any hydraulic system. It comes in different sizes and types depending on the pressure of the system as well as the flow rate.

 

3 Main Classifications of Hydraulic Valves

 

There are 3 main classifications of hydraulic – directional, pressure and flow control. Directional are used to control the fluid’s direction from the start to the end. Pressure valves however are used when a specific pressure level is required. The flow controls are used to control the flow rate of the fluid in the system.

 

Other Types

 

Aside from the main classifications, there are special hydraulic valves that are used dependent on the requirement. Some examples would be multi-block directional, modular, cartridge, electro-hydraulic servo, electro-hydraulic proportional/digital, micro-hydraulic and water pressure control.

 

Multi-block directional ones are composed of a main valve with several valves including a directional, a pressure and a check valve that is used to centralize control of the machine. The safest and most environmental friendly valve on the other hand is the water pressure valve which is used to control water in many water hydraulic systems.

 

4 Ways of Valve Installation Connection

 

Hydraulic valves are essential to a complete system. That being said, there are four different ways that valves are installed and connected – threaded, modular, sandwich plate and cartridge.

 

  1. Threaded:

These valves are usually used for small flow systems as they are lightweight. This valve is very popular and can be mounted along pipelines.

 

  1. Modular:

Modular valves are often used with modeling and pressing machines as well as with hydraulic power units. The valve makes use of valve sub-plate to connect with pipelines.

 

  1. Sandwich:

These valves are flexible as one can use it as a single unit or as part of the hydraulic oil connection. Often, the valve is sandwiched between a direction control and a sub-plate to connect with the pipe system.

 

  1. Cartridge:

Cartridges are divided into two different styles – cover plate or a two-way cartridge valve/threaded which can be two or more cartridges. The valves are made with sleeves, seat, spring, spools and sealing rings. Once all the parts are assembled, the valve is then inserted into a valve cavity. The cavity helps protect the parts inside making it suitable for heavy machine use.

 

These are just a brief overview of the different types of valves and hopefully provide readers an idea helping them make smart decisions later on.

 

Ashun was established in 1984 as a manufacturer for hydraulic and pneumatic products; we design and develop high quality and competitive hydraulic valves and pneumatic valves. We also offer customization service. Welcome to contact with Ashun to learn more information about cylinders and valves.

 

 

Article Source: http://EzineArticles.com/8967413

3 Major Types of Material Handling Equipment

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The process of moving the heavy goods around the warehouse is only possible with the right material handling equipment. This can include items like storage units, forklift trucks and tools that take an active part in the process of moving supplies in and out of the warehouse. Here are some of the major types of material handling equipment:

 

Storage equipment

 

Storage equipment relates to the racks, shelves, pallets or mezzanines that are used when goods are in temporary storage and waiting to be transported to an ongoing destination. A great benefit of using the purpose made pallets or racks is the ease in which they can be stacked to minimize the usable footprint. Many of the large warehouses rely on the proprietary packaging system to increase the ability to store a high volume of goods while conserving space. By creating the bespoke storage equipment it is possible to size them to match the exact dimension of goods that are normally handled.

 

Engineered systems

 

The engineered systems include a variety of automated tools that improve the ability to move heavier loads around the warehouse floor. One of the most popular engineered systems is the fully automatic storage and retrieval system. This type of system involves an automated structure that consists of shelves, aisles and racks that is controlled via a shuttle system. The actual shuttle system is a type of cherry picker and is operated via a fully automatic system or by a worker. This is a very fast and efficient method to locate and retrieve items in a large warehouse. Other similar equipment includes the automatic guided vehicles, robotic delivery systems and conveyor systems.

 

Industrial Trucks

 

The industrial trucks are essential tools used to move the heavy products and materials in and around the warehouse floor. This type of equipment can vary quite significantly and include several types of forklift trucks, pallet-jacks and hand-operated trucks. The trucks differ in size and function to make it possible to easily move the different types of loads. A common method for lifting items is a flat surface or forks like on a forklift truck. The operation of the forklift truck can also vary. For instance, there are trucks that have a person to manually operate the control, while other systems are more automated. Additionally, the trucks include the stack or non-stack design, with the non-stack unit solely used to transport goods and unable to help with loading.

 

Global Power Co., Ltd. is the professional and experienced manufacturer of specializing in forklift truck series. The models of CT POWER forklift truck are compact and have obtained the certification of CE and ISO 9000, which have so far won good reputation among customers from Europe, Middle East, U.S A., Canada, Southeast Asia, etc. Learn more information about forklift trucks, welcome to visit our website or contact with Global Power directly!

 

Article Source: http://EzineArticles.com/9461458

Different Dyeing Methods for Textile Dyeing

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Textile dyeing, which is color applied to fabric by different methods of dyeing for different types of fiber and at different stages of the textile production process. Dyeing can be done during any stage in the textile manufacturing process. Textiles may be dyed as fiber, yarn, fabric, or garments, depending upon the type of the fabric or garment being produced.

 

These methods include:

 

  1. Direct Dyeing

When a dye is applied directly to the fabric without the aid of an affixing agent, it is called direct dyeing. In this method the dyestuff is either fermented (for natural dye) or chemically reduced (for synthetic vat and sulfur dyes) before being applied. The direct dyes, which are largely used for dyeing cotton, are water soluble and can be applied directly to the fiber from an aqueous solution. Most other classes of synthetic dye, other than vat and sulfur dyes, are also applied in this way.

 

  1. Stock Dyeing

Stock dyeing refers to the dyeing of the fibers, or stock, before it is spun in to yarn. It is done by putting loose, unspun fibers in to large vats containing the dye bath, which is then heated to the appropriate temperature required for the dye application and dyeing process.

 

Stock dyeing is usually suitable for woolen materials when heather like color effects are desired. Wool fiber dyed black, for example, might be blended and spun with un-dyed (white) wool fiber to produce soft heather like shade of grey yarn.

 

Tweed fabrics with heather like color effects such as Harris Tweed are examples of stock dyed material. Other examples include heather like colors in covert and woolen cheviot.

 

  1. Top Dyeing

Top dyeing is also the dyeing of the fiber before it is spun in to yarn and serves the same purpose as stock dyeing – that is, to produce soft, heather like color effects. The term top refers to the fibers of wool from which the short fibers have been removed. Top is thus selecting long fibers that are used to spin worsted yarn. The top in the form of sliver is dyed and then blended with other colors of dyed top to produce desired heather shades.

 

  1. Yarn Dyeing

Yarn dyeing is the dyeing of the yarns before they have been woven or knitted into fabrics. Yarn dyeing is used to create interesting checks, stripes and plaids with different-colored yarns in the weaving process. In yarn dyeing, dyestuff penetrates the fibers in the core of the yarn.

 

There are many forms of yarn dyeing:

  • Skein (Hank) Dyeing
  • Package Dyeing
  • Warp-beam Dyeing
  • Space Dyeing

 

  1. Skein (Hank) Dyeing

Skein dyeing consists of immersing large, loosely wound hanks (skeins) of yarn into dye vats that are especially designed for this purpose. Soft, lofty yarns, such as hand knitted yarns are usually skein dyed. Skein dyeing is the most costly yarn-dye method.

 

  1. Package Dyeing

In package dyeing the yarn is wound on a small perforated spool or tube called a package. Many spools fit into the dyeing machine in which the flow of the dye bath alternates from the center to the outside, and then from the outside to the center of the package. Package dyed yarns do not retain the softness and loftiness that skein-dyed yarns do. They are however satisfactory and very widely used for most types of yarns that are found in knitted and woven fabrics.

 

  1. Warp Beam Dyeing

Beam dyeing is the much larger version of package dyeing. An entire warp beam is wound on to a perforated cylinder, which is then placed in the beam dyeing machine, where the flow of the dye bath alternate as in the package dyeing. Beam dyeing is more economical than skein or package dyeing, but it is only used in the manufacture of woven fabrics where an entire warp beam is dyed. Knitted fabrics, which are mostly produced from the cones of the yarn, are not adaptable to beam dyeing.

 

  1. Piece Dyeing

The dyeing of cloth after it is being woven or knitted is known as piece dyeing. It is the most common method of dyeing used. The various methods used for this type of dyeing include jet dyeing. Jig dyeing, pad dyeing and beam dyeing.

 

  1. Garment Dyeing

Garment dyeing is the dyeing of the completed garments. The types of apparel that can be dyed are mostly non-tailored and simpler forms, such as sweaters, sweatshirts, T-shirts, hosiery, and pantyhose. The effect on sizing, thread, zippers, trims and snaps must be considered. Tailored items, such as suits or dresses, cannot be dyed as garments because the difference in shrinkage of the various components and linings distort and misshapen the article.

 

Garment dyeing is done by placing a suitable number of garments (usually about 24 sweaters or the equivalent, depending on the weight) into large nylon net bag. The garments are loosely packed. From 10 to 50 of the bags are placed in large tubs containing the dye bath and kept agitated by a motor – driven paddle in the dye tub. The machine is appropriately called a paddle dryer.

 

Of these Direct dyeing and Yarn Dyeing methods are the most popular ones.

 

Tong Geng Enterprise Co., Ltd. is specializes in design and manufacturing of dyeing equipment for fabric dyeing and yarn dyeing. With over 30 years of solid experience, Tong Geng is one of the leading and skilled suppliers in the world. If you are interested in learning more information about textile dyeing and dyeing machines, welcome to browse our website or contact with Tong Geng directly!

 

Article Source: http://textilelearner.blogspot.tw/2011/12/methods-of-dyeing-different-dyeing.html

 

Reverse Osmosis Water Purifier

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The importance of clean and potable water can’t be undermined in any way. We all know the importance of water and how essential it is for our survival. The fact that our earth comprises of 70% water is not enough to quench our thirsts as another fact that only a little portion of this huge percentage is actually fit for consumption. Availability of clean drinking water has become a luxury that not all of us are available to enjoy.

 

The conventional source of drinking water has been tap water. But tap water comes with a lot of risks and health hazards as it contains impurities like phosphates, nitrates and heavy metals. The problem that lies in front of us is: how to quench our thirsts? Technology has gifted us with a lot of inventions that have made our lives much easier and simpler. Another gift of technology is RO water purifier.

 

Water purified from RO water purifier is relatively pure and also odorless and colorless. Reverse osmosis water purifier gives you water that is free if dissolved minerals. Equipped with the special property of being able to actively absorb toxic substances from water and eliminate them, Reverse osmosis water purifier gives you water which is clean and pure and absolutely fit for drinking.

 

Fluoride, a harmful chemical that is also responsible for yellowing of teeth is present in considerable quantities in tap water but water purified from RO water purifier is free of this chemical. The process of reverse osmosis removes hardness from water giving soft water which is apt for consumption. Reverse osmosis water is also free from sulfates, arsenic, aluminum, radioactivity, salts, detergents, bacteria and most viruses.

 

We recognize the advantage of reverse osmosis and thereby fully equip this technology in our water purifiers. We understand the importance of pure drinking water in the present day scenario where the quality of water is deteriorating each day and we often have to compromise on the quality of water. Triwin RO water purifiers provide you clean drinking water that is absolutely fit for consumption.

 

Established in 1984, Triwin accumulated years of experience in manufacturing products, such as water purifier and other water treatment equipment. We always fulfill the needs for top quality products and equipment in the water treatment industry worldwide. Learn further information about RO water purifier series, please do not hesitate to contact with Triwin directly!

 

Article Source: http://EzineArticles.com/749951

What is a Globe Valve and Where are They Used?

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Globe valves are linear motion valves that are widely employed to stop, start and throttle flow. In this article, we will have a simple introduction about globe valve function, advantages and disadvantages, and common applications of globe valves.

 

Globe valves are designed with a stem that moves up and down to regulate flow inside the valve, a disc (ball, composition, or plug) and seat, which is generally screwed into the valve body. Seats are designed in plane parallel or inclined to the line of the flow. These types of modulating valves are most commonly used to valve throttle, open or close flow in a system. The three basic globe valve body designs are Wye, Tee and Angle.

 

Advantages and Disadvantages of Globe Valves

 

Advantages:

 

  • Good shutoff capability.
  • Moderate to good valve throttling capability.
  • Shorter stroke (compared to a gate valve).
  • Easy to machine or resurface the seats.
  • Can be used as a stop-check valve.

 

Disadvantages:

 

  • Higher pressure drop (compared to a gate valve).
  • Requires greater force or a larger actuator to seat the valve.

 

Typical Globe Valve Applications

 

The following are some of the typical applications of globe valves:

 

  • Cooling water systems.
  • Fuel oil systems.
  • Feedwater or chemical feed systems.
  • Boiler and main steam vents and drains.
  • Turbine lube oil system and others.

 

NICO Valves Corp. is a leading industrial valve manufacturer in Taiwan and China and has been exporting this line of products for more than 20 years to all over the world.

 

We have full qualification for manufacturing widest kind of industrial valves in all common sizes & customized sizes, and available in ANSI, JIS, DIN standards. Its products includes: Gate, Globe, Check, Ball Valve, Knife Gate Valve, and Y-strainer. If you need more information about globe valves and other industrial valve series, welcome to browse NICO’s website or contact with us directly for further details!

 

 

Article Source: http://www.bmengineering.co.uk/news/globe-valves/what-is-a-globe-valve-and-where-are-they-used

 

Flat Bed Lathe vs. Slant Bed Lathe

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The lathe is piece of equipment that is used for turning, drilling and shaping certain materials including metal, glass and wood. There are two types of lathe machines based on bed alignment: The flat bed and slant bed lathe. And what are the differences between the two…?

 

Flat Bed CNC Lathe

 

As its name suggests, it is a flat CNC lathe where you are required to place materials accurately to avoid mistakes in the cutting process. It can be used for light and heavy metal machining, delivering a precise finish for the working material.

 

Slant Bed CNC Lathe

 

Slant bed lathes are aligned sideways. They produce a Z-axis movement. However, they only function at a certain speed throughout the machining process.

 

The Differences between Flat Bed and Slant Bed Lathes

 

Flat Bed Lathe:

It can handle both light and heavy duty materials with exact precision. Flat bed lathe has a high range of machining, stability and productivity. Only skilled professionals are allowed to handle this type of lathe because it is a heavy-equipped machine. It may cause injury if not properly operated.

 

Slant Bed Lathe:

It is advisable to use for light materials only. Slant bed lathe has a lower range of productivity due to its machining capacity. It is a user-friendly lathe where machining is a lot easier.

 

Similarities of Flat Bed and Slant Bed Lathes

 

Flat bed and slant bed lathes are both used for:

 

  • Mining industries
  • Shipping materials and equipment
  • Different parts of machinery
  • Industrial materials
  • Power plant materials and equipment

 

In general, both flat bed and slant bed lathes are useful for achieving a precise finish. The lathe you should use will depend greatly on the material you are working with.

 

With years of efforts of research and development, the Shun Chuan’s slant bed CNC lathe will offer the unique rigidity. Our slant bed lathes enhance heavy duty, precision and stability. With its excellent machine structure, you can handle heavy cutting with more ease than ever before. If you need further specification and details about slant bed lathe or other CNC lathes, welcome to browse Shun Chuan’s website or contact with us directly!

 

Article Source: http://www.cncturning.co.uk/blog/blog/flat-bed-vs-slant-bed-cnc-lathes/

 

Multiple Connectivity Modes with Biometric Access Control

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Biometric Access Control is the new age technology that has revolutionized attendance and access systems like never before. The age of swapping cards and proxy punching is long gone and now all organizations are adopting this new technology which uses various human traits such as fingerprint scanning, retina scanning and facial recognition in place of swapping cards and passwords. The benefit of these human traits is that they are unique to every individual and cannot be duplicated or stolen.

 

Every year organizations lose a huge sum of money due to time thefts and unnecessary manual work of calculating wages and working days of each and every employee. This is not only tiresome and time consuming but also costs a lot of money. No organization can afford such costs in this highly competitive world. So many organizations are now switching to biometric scanning processes which enable them to save money and also time.

 

Biometric technology has various modes of connectivity and access depending on the needs and want of any organization. Manufacturers of these scanners keep the needs of the customers in mind and provide them with customized technologies most compatible with their employees and their requirements. The different modes include fingerprint scanning, which include the scanning of fingerprints of every employee while entering or leaving the office. Retina scanning is the process by which the iris, retina and other features of the human eye are scanned and then admission is allowed to any individual inside any high secure facility. Retina scanners are really very accurate and personalized. Many high risk government and private facilities use a combination of fingerprint scanning and retina scanning in order to provide maximum security and to ensure that only authorized personnel are allowed to enter. Facial recognition includes scanning the vital points of any individuals’ face that differentiate it from any other individual.

 

Thus latest biometric technology is the technology of the next age and many organizations have already started using it. Preliminary results have been very promising and many are inclined to follow the trend in near future. Its products are very reliable. These biometric systems are now available easily and you can access them as per your convenience and requirements. So don’t be late and order a biometric scanner as per your requirements as soon as possible. It’s high time to upgrade yourself if you don’t want to lag behind in this competitive world.

 

Quality biometric access control system manufacturer – Pongee, providing fingerprint time attendance, face recognition access controller and USB fingerprint scanner in this series. Our biometric access controllers with time recorders are high security, easy to start and easy to use. Welcome to browse the specification about our biometric access control systems and feel free to contact with Pongee for more details!

 

 

Article Source: http://EzineArticles.com/9011041

 

What Are the Different Types of CNC Machining Tools?

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The most common types of CNC machining tools are the vertical milling machine, lathes, and drilling or boring machine. Other types include EDM machines, laser cutting machines, and water jet profilers. These are just a few of the examples used in the manufacturing industry today.

 

The acronym CNC stands for “computer numerical controlled.” In these tools, a computer or “controller” drives the machine according to G-code instructions. The machines are designed to quickly perform repetitive tasks accurately at high speeds. Common tasks include cutting, grinding and drilling.

 

Fabrication of modern CNC machining tools began as early as the late 1940s by John T. Parsons to produce wing sections for the United States Air Force. Today, the range of products made with these machines is vast. CNC machining tools produce highly specialized parts for machine and automotive industries around the globe. Other types of industries that utilize CNC machining tools are the woodworking and granite or stone industries.

 

The main component of CNC machining tools is the machine control unit. This unit reads and decodes instructions, generates axis commands and feeds motion commands to circuits that drive axis mechanisms. It also controls the spindle, coolant and tool change functions. Other components of CNC machining tools are a program input device, which installs a part program into the CNC control, and a part program, which controls the movement and functions of the machine.

 

Various types of machinery use CNC as a controller. A lathe or turning center is a common type of CNC machining tool. This type of machine is capable of performing various lathe-cutting operations automatically. Laser cutting CNC machining tools are another type, and use a focused beam of laser light to cut a wide range of materials.

 

CNC EDM machining tools operate by using a thin wire as an electrode. The resulting erosion caused by the arc is what does all the cutting. CNC controls the table movement, as the wire remains stationary during operation.

 

A machining center is the latest type of CNC machining tool. It is capable of performing various tasks such as milling, boring and drilling in a single setup. Pallets or worktables automatically exchange work pieces as needed. The machining center automatically changes tool heads to perform the specific tasks as needed.

 

OCEAN Technologies Co., Ltd. is the manufacturer of specializing in CNC EDM machines. We provide EDM machines include micro EDMs and CNC drilling EDMs…etc. If you are interested in learning further details about OCEAN’s EDM machine series, welcome to browse our website or contact with us directly to obtain more information!

 

Article Source: http://www.wisegeek.com/what-are-the-different-types-of-cnc-machining-tools.htm