Taizhou Runde Company

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  • 2020-05-05
    A water meter is a device that measures the volume of water delivered to a property. ... Most residential water meters are located near the curb or sidewalk at the front of the property in a concrete "box." The water meter box will have a metal or plastic lid and may be marked, "Water Meter." The above video showed how we produce the body of the water meter. Tag:brass fittings,end feed brass fittings,solder ring brass fittings,brass plumbing fittings,connex brass fittings.
  • 2020-04-27
    A solder ring fitting, also known by the trademarked name Yorkshire fitting, is a pre-soldered capillary connector for joining copper pipes used in plumbing. ideal for domestic and commercial heating and plumbing applications. All Runde's solder ring brass and bronze fittings comply with British and International standards, manufactured to BS EN 1254 under quality management standard ISO9001:2008. A ring of high quality lead–free solder is located in each fitting with the joint secured through capillary action as the pre-soldered fitting is heated to make both an easy and effective connection, without the need to use additional solder. During the manufacture of these precision-made fittings, a ring of high quality lead-free solder is positioned in each capillary socket. When heat is applied, the solder is released into the gap between the tube and the fitting, resulting in a totally sound joint without the need to end feed additional solder. The major advantage of the Runde integral solder ring fitting is that the installer requires no additional solder. This removes any expensive solder waste and the need to estimate the quantity required for a secure, reliable joint. Once heated, the appearance of a complete ring of solder around the mouth of the socket makes it clearly apparent that the joint has been made. The range is light and neat, with compact dimensions that are ideal for making use of limited space in ducts and other restricted areas. Providing that cleaning and fluxing is properly carried ou
  • 2020-04-23
    Fire sprinkler system A fire sprinkler system is an active fire protection method, consisting of a water supply system, providing adequate pressure and flowrate to a water distribution piping system, onto which fire sprinklers are connected. Step 1: Fire Sprinklers Detect Heat Contrary to popular belief, fire sprinklers are not trigged by smoke. It`s an easy mistake to make, since heat is carried upward with smoke from a fire. But if smoke was the trigger, simply burning your toast in the office kitchen could be enough to drench the kitchen with water from a fire sprinkler head. Fire sprinklers work because high heat triggers the sprinkler system. When a blaze ignites, the air directly above it heats rapidly. This hot air rises and spreads along the ceiling. When the air is hot enough and reaches a sprinkler head, it triggers a chain reaction. Most sprinkler heads feature a glass bulb filled with a glycerin-based liquid. This liquid expands when it comes in contact with air heated to between 135 and 165 degrees. When the liquid expands, it shatters its glass confines and the sprinkler head activates. Step 2: Fire Sprinklers Douse the Fire Each sprinkler head is attached to a pipe that
  • 2020-04-09
    The brass elbow are used to change the direction of the pipelines.the professional plumbers concern the water flow .Actually, the water flow is very important The standard EN1254-1 has required minimum hole size to regulate the water flow.For examples,the 15mm fittings require minimum hole diameter not less than 11mm .Actually,the minimum hole size not only infulence the water flow,but also the water pressure. Sometimes, the hole size is too small at the back of the elbow is the reason of break. Most factories perfer to using the twist drill bit to bore the elbow.Because such twist drill bit is very easy to grind and the cost also very cheap.But because the back of the elbow is acr shape. and the end of the twist drill bit is not .So there must left some material at the back. The left material at the back not only block the water flow,but also reduce the diameter of the hole.
  • 2020-03-26
    When mentioned solder ring bronze fittings,brass fittings,copper fittings,The trademarked named Yorkshire is well-known.It is a pre-soldered capillary connector for joining copper pipes used in plumbing.And it suite of integral solder ring capillary fittings has the solid reputation of an established product range and suits a broad spectrum of applications in the domestic, commercial and industrial sectors. Runde's solder ring fittings is same as Yorkshire.It is manufactured in both bronze, copper and brass .are a fast, reliable and economic method of joining BS EN 1057 copper tube. Solder Ring Fittings connect to copper tube through the process of capillary action with solder forming an easy, effective joint between the fitting and the tube. They are lightweight for easy handling and lend themselves well to confined environments due to their compact sizing. Tag:gunmetal flange,nibco bronze flange,bi-metallic flange,bronze flange,solder ring gunmetal fittings,connex solder ring fittings.
  • 2020-03-24
    the casting way can be divided to casting,investment casting,centrifugal casting and continuous casting.Here we talk about the sand casting. 1. resin sand used to produce the mould. the resin sand inject into a steel mould via injecting hydraulic machine.we will got two sand mould shell and sand mould core. the two sand mould shell will be stick together face to face and the sand mould core should be palce inside in advance. 2.place the full sand mould on the ground or on the special fixture. 3.Make the bronze Hot the bronze should be heat to liquid state,and remove all the impurities on the surface of liquid. 4.Pouring the Mold a big spoon used to pure the liquid bronze into the mouth of sand mould until it is full. 5.Clean Your Casting When cool, your bronze will easily separate from the sand but you'll need to clean it up a bit and maybe fix some imperfections in the casting. Sand blasting and wire brushing works great for making it pretty. Now you're ready to patina, or use the casting in a larger piece. tag:kembla bronze fittings,connex bronze fittings,solder ring bronze fittings,pre-solder bronze fittings,yorkshire solder ring fittings,connex solde
  • 2020-03-01
    We used KND to refit the lather this time.It can give the manual lather a new life. Current our CNC can machine the thread up to 4" and the weight of the products under 2kg .But we want to extend our products line to 8" and weight reach to 100kg.For examples,some big size bronze valve and water tank puddle flange.For such CNC machine,the rate is very very expensive in the market.But it is economical to purchase a new manual lather to refit to CNC . We call it lather rebuild.Generally,for the epecial usage,we used this way to save the cost and the function of the machine can reach our requirement. tag:brass fittings,gunmetal fittings,brass plumbing fittings,brass pipe fittings,yorkshire brass fittings.pegler brass fittings
  • 2020-03-24
    Sawing is one of the most versatile and widely adapted methods for cutting tubing. Each sawing application is unique, but, generally, sawing is suitable for low-volume production. A double-head cold saw usually cuts one tube at a time. In all sawing applications, the number of teeth required on the blade is based on the number of teeth that contact the tube on the maximum arc of the cut. Having too few teeth contacting the tube limits production rates and causes vibration. Having too many teeth contacting the tube causes chips to become clogged in the teeth, perhaps causing the teeth or the blade to break. In principle, cold sawing is the same as turning and milling. Metal is removed by shearing with positive rakes. The basic blade design for cold sawing is a common tooth shape. The cutting zone is cooled to minimize saw tooth softening by lubricating it with soluble oil emulsions or synthetic oil directly in the cutting zone. tag:bronze fittings,yorkshire bronze fittings,pegler bronze fittings,gunmetal fittings,end feed bronze fittings,end feed gunmetal fittings.
  • 2020-03-03
    Since the start of the COVID-19 epidemic in late 2019, there are now 29 affected countries with over 1000 confirmed cases outside of mainland China. The COVID-19 cases has exported from mainland China to different regions and countries. The COVID-19 surely brought serious impact in short term.Especially, the services sector, including tourism.But we trust it is temporary and will not affect the world's long-term social and economic development goals. Since 23th March,Runde's factory has opened.And the production capacity recoveried 80% one week later.we organized the domestical saff to back work and arrange car to pick up the ecdemic staff .Most chinese factory also take similar action like us. And the most bank reduce the interest to activate the economy. We make the above video in the begining of 2020 which is the first time we activate the furnace this year.We trust the casting flame can bring good luck.Next month,we continuely attend the 127th carton fair. Dear friend and customers, Trust us as before,Everythings will goes well soon.Also please take care yourself and your family during this special period. Take care! Tag: bronze fittings, copper fittings,brass fittings,copper plumbing fittings,die casting fittings,copper pipe fittings.
  • 2020-03-03
  • 2020-02-21
    RUNDE Copper Tee Fittings the most widely used in the Copper Pipe Fitting range is generally used to merge or separate the gas or water fluid flow It is also sometimes available with Female Threaded Sockets Plain Copper Sockets Copper Pipes welded for long term use.copper fittings,copper pipe fittings,end feed copper fittings. The lead free wrought copper Tee is used in residential and commercial systems such as potable water, air conditioning and refrigeration. Solder end connections. Lightweight, strong and corrosion resistant, and cannot produce toxic fumes in a fire.solder ring copper fittings,en1254-1 copper fittings,asme b16.22 copper fittings,presolder copper fittings. Features: 1.Solder end connection 2.Lead free refers to the whetted surface of the pipe, fittings and fixtures in potable water systems that have a weighted average lead content of 25%, source: California Health and Safety Code (116875); Vermont Act 193. 3.In addition to its inherent qualities of beauty, durability, and low maintenance, copper`s reusability makes it an ideal application in sustainable projects. 4.Lightweight, strong and corrosion resistant, and cannot produce toxic fumes in a fire. yorkshire copper fittings,pegler copper fittings,connex copper fitting.
  • 2020-02-19
    What is a Water Meter? A water meter is a device that measures the volume of water delivered to a property. Some water meters measure water in gallons while others measure in cubic feet. Most residential water meters are located near the curb or sidewalk at the front of the property in a concrete "box." The water meter box will have a metal or plastic lid and may be marked, "Water Meter." Use a long screwdriver to remove the lid. However, be cautious as insects, reptiles or other small animals occasionally take residence inside the boxes. Some water meters will have a small, hinged cover while others may not. Lift the cover and use a damp rag to wipe the face clean. Understanding the Water Meter Look at your water meter to determine if you have an analog (dial) or a digital display. Instructions for reading both types of water meters are included in this section. READING THE ANALOG DISPLAY The large sweep hand on the dial measures water use in gallons or cubic feet. One gallon or one cubic foot of water passes through the water meter as the sweep hand moves from one number to the next (e.g., 0 to 1). A complete rotation equals 10 gallons or 10 cubic feet depending on the unit measured. Most analog dials have a low-flow indicator that turns as water moves through the water
  • 2020-02-17
    Bronze is the most popular metal for cast metal sculptures; a cast bronze sculpture is often called simply a "bronze". It can be used for statues, singly or in groups, reliefs, and small statuettes and figurines, as well as bronze elements to be fitted to other objects such as furniture. solder ring bronze fittings,presolder bronze fittings,yorkshire solder ring fittings,conex solder ring fittings. The Artist Delesprie prides herself in having worked for decades casting Bronze Sculptures, Statuary, Life Size and Monumental Sculptures using the process of Bronze Casting. She has worked co-operatively with Land and Building Developers, Architects, Landscaping Architects, Builders, Contractors, City Planners, and City Council members. Step 1 Once the sculpture is complete, it is then divided into sections. Depending on sculpture size specialized saws will be used, an artisan or jewelers saw for smaller pieces and a reciprocating saw for monuments. The head, torso, legs, arms, sometimes hands, and any forms not attached to the body, e.g. hair, any flowing garments and other accessories will all be cut off for mold making.
  • 2020-02-17
    Valve? What's the world's favorite form of transportation? The car? The bicycle? The jet airplane? If I had to hazard a guess, I'd pick none of these things. Instead, I'd opt for the humble pipeline. You might not notice pipes, but they're transporting vast amounts of fluid (liquid and gas) around the world quietly and efficiently, day in and day out. To work efficiently, pipes need a way of regulating how much fluid can pass through them; they also need a way of switching the flow off completely. That's the job that valves do: valves are like mechanical switches that can turn pipes on and off or raise or lower the amount of fluid flowing through them. Let's take a closer look at how they work! What are valves? A valve is a mechanical device that blocks a pipe either partially or completely to change the amount of fluid that passes through it. When you turn on a faucet (tap) to brush your teeth, you're opening a valve that allows pressurized water to escape from a pipe. Similarly, when you flush the toilet, you open two valves: one that all
  • 2020-02-16
    Desoldering: Desoldering is the process of removing solder at a joint to disconnect two components, wires or materials. You might have to do this if you want to replace a component that's gone bad, or if you want to change something about your design once it's already soldered into place. To desolder wires you can usually just heat up the connection and wiggle them around until they come free. Better yet, if you have the slack, just cut the wire at the connections, strip, and resolder as necessary. presolder brass fittings,presolder bronze fittings,presolder copper fittings With leads that are mounted through holes on a circuit board it takes a little more finesse. To desolder something delicate its best to use a desoldering pump, or bulb which will actually suck up the molten solder and remove it from the joint. Soldering wicks or braided copper wire also work well to suck up unwanted solder. For more complete guides on desoldering check out Make Magazine's Learn How To Solder Skill Building Work Shop Video and this site here. Fixing mistakes: Soldering is pretty forgiving, and its usually pretty easy to fix a mistake. If you put down a little too much solder or position something incorrectly you can usually reheat your joint, melt the solder, and then reposition your component as necessary. Solder can be heated and cooled as many times as you need to get your joint the way you want it. solder ring brass fittings,solder ring bronze fittings,solder ring copper fittings,So don't be discouraged if it takes you a couple of tries to get it down - you will still end up with a good connection if you stick with it. Extrapolation: Soldering is a pretty straight forward process but there is no limit to what you could create with it. Try to join things together. It works well for making jewelery, doing basic arts and crafts with small metal objects, or re-wirin
  • 2020-02-16
    Runde produce various size of the bronze fittings.Especially the bronze flange known as gunmetal flange too.We use only quality raw materials that are procured from only established and reliable vendors. We have adopted rigorous quality control practices and procedures to ensure the production of only quality products matching industry standards and parameters. The casting and forging flanges have advantages that the blanks of them have accurate shape, size and low costs and only need simple process. But forging flanges have manufacturing defects such as blowholes, cracks, etc and have not very smooth internal organization streamline. The obvious advantages of forging flanges are that they can be forged in various shapes and they have low costs. Forging flanges generally have lower carbon content than the casting flanges and are not easy to rust. They have smooth streamline, uniform internal organization, and better mechanical performance than that of casting flanges. There are no defects, such as blowholes and cracks existing in the casting flanges. Forging flanges are able to withstand higher shear and drawing forces than casting flanges. However, if adopting improper forging process, it will also cause appearance of large, uneven grains and solidifi
  • 2020-02-15
    Everything that I have explained how to do up until now has hopefully been pretty close to how things should be done "the right way" when soldering. Soldering, however, is just a process of joining things together to make a connection. If you don't have all the tools to solder, but still want to learn how to solder something, never fear, with just solder and some wire you can practice bare bones soldering. Bare bones soldering comes in handy when you're stuck on a desert island and you need to make a repair to your headphones so you can watch the sun go down while being serenaded by your most recent whale songs cd. It's also a cool trick to pull off next time your decide to be MacGuyver for Halloween. I took some pieces of wire and stripped them with my teeth - the best method for doing this I have found is use my molars. I just grab the insulation with my teeth, try to sever the insulation a bit, and then pull on the wire. It's easiest to do with braided wires, and it certainly takes a little practice to apply the right tension so you don't just rip the wire apart entirely. But once you get the hang of it it's actually a pretty functional method. (WARNING: I do not encourage stripping wire your teeth at all, solder ring brass fittings,solder ring bronze fittings,solder ring copper fittings,and it will probably lead to expensive dentistry work if you do it enough.)presolder brass fittings,presolder bronze fittings,presolder copper fittings Once I had the wires stripped and twisted together I got a lighter and a bit of solder and went to work heating up the wires I wanted to join. It took the lighter about as long to heat up the wires as it did when I used the iron. I then fed a little solder into the joint, continued heating the wire to smooth things out, and then turned off the flame. It worked just as well as it would have had I used an iron. Of course it's harder, if not impossible ,to use this method
  • 2020-02-15
    Soldering components onto a circuit board when the leads can be pushed through holes in the board is the easier of the two methods of soldering small components onto boards. Many circuit components need to be surface mounted on circuit boards, which forces you to be a little more precise then when you can work on the bottom side of the board. To solder something onto the surface of a circuit requires a process called tinning. Tinning is when you apply a small amount of solder onto the materials you are joining before you connect them. In this case, it involves putting some solder on a contact on the surface of the circuit board then attaching the component to the solder pool. Mitch showed me how this process is done. First he touched the tip of the iron onto the small pad on the top of the circuit board. He then introduced a small amount of solder onto the pad and took the iron away. Then, a few seconds later he picked up the component he wanted to solder with a set of tweezers, heated up the small glob of solder that he had just placed down, and gently lowered the contact on the component into the pool of hot solder. He took the iron away, held the component in place a few seconds longer, and released the component from the tweezers. presolder brass fittings,presolder bronze fittings,presolder copper fittings He then went to the other side of the component and finished making the connection by soldering the remaining two contacts together. Surface soldering is done like this because you need to lower the component into place by hand, solder ring brass fittings,solder ring bronze fittings,solder ring copper fittings,so it's hard to hold the iron, the tweezer and the solder all at the same time. Additionally, tinning is just a good thing to do while soldering small components. I didn't tin the wires before I soldered them because they were so big I was sure I was going to be
  • 2020-02-15
    Once you've got your components soldered into the circuit board, you can go back and cut off the excess leads. This is pretty easy to do, and there isn't much technique here. Just a few quick tips before you snip: It's best to use a sharp wire cutter that has just one side of its cutting edge beveled. This way you can get a smooth flat cut when you cut off the lead. presolder brass fittings,presolder bronze fittings,presolder copper fittings It's also a good idea to cut the leads pretty close to the circuit board to minimize the risk of creating a short.solder ring brass fittings,solder ring bronze fittings,solder ring copper fittings Although I didn't do it in the video below, holding onto the excess lead when you cut it off is a good way to keep the little ends from getting all over the place. presolder brass fittings,presolder bronze fittings,presolder copper fittings Once you've got your leads cut you're pretty much done with soldering and ready to move on.
  • 2020-02-15
    Up until pretty recently I spent most of my life soldering speaker wire and crossover components for speakers. This meant mostly wires twisted around wires or big resistor leads twisted around inductors and capacitors. At that level soldering doesn't really get any more complicated than what I did in the previous step. Lots of the projects on Instructables, however, use smaller electrical components and circuit boards, so I figured I would give that a try too.presolder brass fittings,presolder bronze fittings,presolder copper fittings Soldering on a circuit board takes a little more care and attention, but it's still very doable. I pushed a few of the leads from some spare LEDs and resistors that I had from my LEDs for beginners post through some open holes in a circuit board that was lying around. I soldered the leads onto the bottom of the circuit board where the electrodes push through. This is called through hole component soldering. To solder the LEDs and the small resistors to the circuit board I switched to the adjustable temperature soldering iron. The tip was smaller so it would be easier to get the solder right where I wanted it, and using the soldering gun on a circuit board is probably way more heat than necessary and it could end up damaging the components. I set the temperature of the iron to 675 degrees Fahrenheit and waited for the tip to heat up. I then loaded the circuit board into the alligator clips and got myself ready to solder - iron in one hand, solder ring brass fittings,solder ring bronze fittings,solder ring copper fittings,coil of solder in the other. When soldering leads into circuit boards you want to heat the metal contact on the board and the lead itself. Applying too much heat can damage the circuit board or even your components. The surfaces being joined in this application were much smaller than the twisted wire, so things heated up a lot faster. I touched the tip of the
  • 2020-02-15
    I started soldering just two pieces of wire together because it's the most forgiving way to learn. You can't really get the wires too hot - the insulation might start to melt a bit, but you're not going to hurt the wire. With the wires you want to join twisted together and held in place, pick up your soldering iron in one hand and your solder in the other. Touch the tip of the soldering iron to the wires and keep it there. The wires will begin to heat up. At some point over the next 2-10 seconds (depending on how hot your iron is) the wires will be hot enough to melt the solder. You can touch the solder to the wires (not to the tip of the iron!) periodically to see if it's hot enough. It's tempting to just touch the solder to the tip of the iron and melt it right away, but don't! You will end up making what's called a cold solder joint. This occurs when you melt the solder around the joint, but you aren't melting the solder into your joint or onto your components to make a good connection. It's much better to wait the few seconds and melt the solder onto the hot wire itself. solder ring brass fittings,solder ring bronze fittings,solder ring copper fittings If you touch the solder to the wire and it begins to smoke and melt, the wires are hot enough. Add the tip of your solder to the joint as necessary. You want to introduce enough solder to cover the wires, but not so much that you create a big glob of solder at the bottom of the joint.presolder brass fittings,presolder bronze fittings,presolder copper fittings Once you've got what you think is enough solder on the joint, pull the solder away and then remove the soldering iron. If you're using a gun style soldering iron like I was, release the trigger to turn it off. If you're using the kind that doesn't have a trigger the iron will stay hot, so just place it back into the holder.
  • 2020-02-15
    Once I get my tools rounded up I like to plug in my soldering iron and let it heat up while prepping my materials. First things first, the tip of the soldering gets hot - up to 800 degrees Fahrenheit, so don't touch it. I know this seems obvious, but many people seem to burn themselves at some point while soldering. If you're using a new soldering iron you will want to put a small amount of solder on the tip of the hot iron before you start working. This is called tinning the iron and you only have to do it with a new iron. Once you start using it will usually have some solder on it already and be ready to go.presolder brass fittings,presolder bronze fittings,presolder copper fittings Once the iron reaches temperature (some irons take minutes to do this and some irons take seconds), I like to clean the tip of my iron on a wet sponge. You can wet the sponge on your soldering base if you have one, or you can just use a damp sponge or steel wool. Gently touch the tip of the soldering iron to the sponge and clean off any old bits of solder that might be stuck to it. It will sizzle a bit; this is normal. I asked Mitch, a soldering expert who works at the control tower by day and is numberandom by night, for some tips. Mitch showed me a good idea for how to hold solder wire: he cuts a piece of it off the roll, and then makes a coil at one end with a short lead at the other. This helps him hold it steady and apply just the right amount of solder. This is a way better idea than trying to hold the whole spool of solder or grab onto just one thin strand.solder ring brass fittings,solder ring bronze fittings,solder ring copper fittings Next it's time to pay some attention to the material you're soldering. If you're soldering wire, you'll need to strip back about 1/2" of insulation to expose the bare wire. If your joints are going to be wire-to-wire or wire-to-lead, you can twist them together tightly b
  • 2020-02-15
    Soldering is the process of using a filler material (solder) to join pieces of metal together. Soldering occurs at relatively low temperatures (around 400 degrees Fahrenheit) as compared to brazing and welding, which actually melt and fuse the materials themselves at higher temperatures. In soldering the filler material becomes liquid, coats the pieces it is brought into contact with, and is then allowed to cool. As the solder cools it hardens, and the two materials are joined. Soldering is a quick way to join many types of materials, from copper pipe to stained glass. It creates an electrically conductive strong bond between components that can be re-heated (desoldered) if you should ever want to disconnect two items joined together. It's great for joining electrical components and wires and is used in just about everything electronic. In this Instructable I explain how to solder the basics you see in most Instructables: electrical components and wires. For further information and some more technical specs on soldering check out the wikipedia article. As with many skills, having the right tools for the job effects the quality of the work being done. When it comes to soldering you can end up using a lot of fancy tools, or just a few simple items you can pick up at the hardware store for a couple of bucks. I am going to use a couple of different soldering tools in this Instructable; there are many ways to solder, and you should use what works for you. At the very minimum you will need the solder and a heat source to melt it - preferably something small which can get to 600-800 degrees Fahrenheit. If you've got that, your ready to make a connection. That being said, there are a wide range of soldering tools and accessories that can be really helpful if you're going to be soldering frequently. Ladyada has compiled a nice list of equipment and sources to buy the tools on her site. I got together a solid supply of soldering to
  • 2020-03-02

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