Grease fittings (or grease nipples, Zerk fittings, grease zerks, Alemite fittings, Zerks) are lubrication points in mechanical systems that add grease from grease guns. By applying pressure to a ball valve in the fitting, grease flows into the lubricating chamber, but cannot flow out.
　　High Pressure Grease Fitting manufacturer come in different sizes, threads, lengths, adaptations and styles. Below we’ll discuss the common characteristics and the more important things to know about grease fittings and their accessories.
　　Grease fitting (Zerks) styles
　　If you need SAE or metric zerks we’ve got a collection in packages of 5 and 10, and in kits, offering: straight, 45, 65 and 90 degree angles in any size you might want.
　　The SAE and Metric Assorted 80 Piece Kits incorporate the most popular sizes; these Grease Fittings are manufactured to the most stringent quality standards.
　　4-way Grease Tool (easy-out-tool)
　　You may also need a four-way or an easy-out tool. These come in two different sizes to deal with different grease fittings and make it really easy to replace broken grease fittings or functional zerks that you maybe just want to swap out for something newer.
　　If you run into damaged or broken grease fittings, the 4-Way Grease Fitting Tool is your all-in-one solution. It can:
　　Install,
　　Remove,
　　Repair, and
　　Maintain
　　any Straight, Angled, and Pin Zerk Fittings.
　　It makes maintenance a snap and is easier than looking for the correct wrench size; it has a built-in rethreader and extractor.
　　T-Style Design
　　It has a 2” T-design and a knurled body for maximum grip.
　　You can install straight and angle zerk fittings and rethread or remove straight, angle, and pin fittings.
　　Versatile
　　Designed to retap holes for new installation, and also helps with the removal of worn or broken fittings.
　　The Grease fitting Unblocker removes old hardened grease, dirt and debris from clogged up bearings. Simply changing the fitting in most cases does not fix the issue, because the blockage is most often located in the joint itself.
　　Handy grease fitting drive tools make installing straight and angeled drive type fittings and zerks easy. Insert a drive tool over the fitting and tap opposite end with a hammer to seat.
　　The tools are made of heavy duty steel with a zinc-plated finish.
　　Available in 2 types: straight and angled
　　Fitting Protectors (caps)
　　These handy, little plastic caps keep your grease fittings clean. At the time when you go to grease them, you don’t have to worry about clearing off all the mess.
　　The Grease Fitting Protectors (GFP) deliver a secure seal over most common fittings. They provide excellent protection against contamination. With 10 colours and space for labels, these caps clearly identify what grease is required for the fitting.
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　　Waterproof Resin Coating suppliers is not only functional but also adds aesthetic to a building. A shiny floor says that a business is dedicated to design and cleanliness and can reflect in the way they take care of their customers and deliver their goods and services.
　　There are different floor coatings available on the market. What you choose, however, should satisfy four key considerations.
　　Safety for everyone. It must not be too slippery that causes falls, or uneven that causes trips or slips. It must not allow liquid to pool, either, and cause structural damage and foster bacterial growth.
　　Appealing aesthetics. As previously mentioned, a clean and polished flooring reflects good business practices.
　　Cleanliness that increases aesthetics and promotes a healthy and disease-free environment. No one wants to do business in a building that shows cracked flooring and unsightly stains.
　　A well-maintained flooring that needs less maintenance yet saves cleaning and replacement costs and lasts longer.
　　The last consideration seems impossible to find. Is there such an industrial floor coating that is low maintenance yet long lasting?
　　What is it?
　　It is a thermosetting resin that is applied on concrete flooring as a protective and decorative coating. It is a popular industrial floor coating because of its strong and durable nature.
　　It uses a combination of resins and hardeners that forms a rigid plastic material when mixed together and then chemically react. The resulting material is a durable, resistant, and strong coating that bonds extremely well to a range of base layers. This is why epoxy flooring systems are often used in heavy traffic areas, such as sports facilities, hospitals, industrial environments, garages, and hangars.
　　What are the Types of Epoxy Flooring Systems?
　　Self-leveling epoxy floors are applied over concrete floors that are old, cracked, or damaged. This creates a durable, seamless, and smooth flooring surface. It is low maintenance too.
　　Epoxy mortar floors are the strongest epoxy flooring available because these are made with 100% solid epoxy. To create a seamless system, this flooring system is graded sand or quartz sand.
　　Quartz-filled epoxy floors use a combination of epoxy polymer resin and colored quartz grains. The result is an epoxy flooring system that is durable, decorative, sanitary, and slip-resistant.
　　Anti-static epoxy floors contain a conductive material that prevents any potential discharge or static electricity from causing damage to electronics.
　　Epoxy flake floors combine epoxy with color chips or flakes to create a surface that is multicolored and vibrant. The surface is resilient and seamless too.
　　What are the Benefits of Epoxy Flooring?
　　Adds aesthetic appeal to commercial and industrial areas, especially with an epoxy coating with colored microchips.
　　Creates a smooth and resilient surface that is resistant to abrasion and chemicals.
　　Adds durability and strength to flooring in high-traffic commercial and industrial applications.
　　Requires little maintenance to make the industrial floor coating last a lifetime.
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　　The High Pressure Injection Pump for sale is the heart of a diesel engine and plays a vital role for efficient results of delivery. The fuel delivered by the pump, maintains a proper timing, which helps the engine to run smoothly. Simultaneously, the amount of fuel required to gain appropriate power is also controlled by the injection pump which ensures optimum utilisation of the resource.
　　The injection pump is efficient in doing the job of ignition as well as throttle system especially in gasoline engines. When the gasoline engine is checked for some technical issues, fuel, compression and spark is checked in order to analyze the fault. On other hand the diesel engine doesn’t come with ignition system hence there are no or reduced chances of failure.
　　The major reason for enhancement of diesel engine is due to its efficient fuel injection system. The timing of each type of engine is customised such that it suits and ensures optimum utilisation to increase efficiency. This helps the fuel injection to pump the right quantity of fuel at the right time into the chamber of cylinder when it is required the most. This indeed helps the piston which works under very high compression to generate heat and causes the fuel to ignite and thus generating the much required power in time for the engine.
　　The Diesel Injection pumps operate more than thousands times in a span of 60 seconds, hence to identify a trustworthy, sustainable and reliable Diesel injection pump is a very big hurdle for most of the organisations. Moreover there needs to be an aftermarket support system for service back up.
　　The Diesel Injection pump are designed in such a way which give the optimum level of specification required and in turn would be calibrated to 100% perfection to ensure timely, qualitative and quantitative delivery of the fuel. This supports the cycle of combustion and ensures increased efficiency, fuel consumption and generation of power.
　　For increased output it would be necessary for correctly setting up the injection pump as it has a vital role to play in keeping the level of emission to the permissible limits from the engine.
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　　As buildings age and settle, stresses put upon the structures and surfaces will take their toll. Our Polyurethane injection grouting for sale contractors can help you minimize the damage.
　　Modern concrete was patented in the 1800s by an English cement maker and a French gardener, but cement has been in use for more than 2,000 years. In Rome it was called opus caementicium, and it’s the primary material in the Pantheon dome and the grand Colosseum.
　　Concrete, more than any building material, has allowed man to build truly incredible things. Industry and commerce depend on the structures we built with concrete. Concrete is hard stuff, but with time, water, wear and tear, and ground action, even the largest concrete structures and surfaces will begin to crack.
　　Professional Epoxy Injection Services.
　　Epoxy injection is an economical method of repairing cracks in concrete structures, slabs and concrete surfaces exposed to the elements — such as piers, stanchions and support pylons. Whether it’s your primary office, manufacturing facility, refinery, parking structure, foundation or other industrial placement, epoxy injection can help to stall and even reverse some of the damage incurred by your property.
　　Before attempting to restore a crack, it’s critical to understand the cause of the crack. Is it movement or settling, excess strain or weight load, or is it degradation of the core material by water or environmental forces? In some of these cases, grout injection services will resolve the issue, but in others, an engineer may need to be consulted before proceeding. Engineers will be able to certify the safety, stability and viability of your facilities before injection or further action is taken.
　　When do you Need Polyurethane Grouting Services?
　　If water is a particular concern for your facility, then polyurethane grouting is another technique you should consider. It works by cutting off water flow through concrete joints and cracks or filling the voids beneath and between slabs and within the subsurface of walls. The water-impermeable grout is injected through a pre-drilled hole, and is often used with epoxy injection to provide waterproofing in large infrastructure projects such as traffic tunnels and subterranean resource passages and facilities.
　　Polyurethane grouting is used often in roof slabs, drainage-adjacent surfaces (such as walls with an attached drainage pipe), and other surfaces exposed to water or prone to accumulations of resting water. It is also used in tandem with epoxy injections, in cases where pre-existing fractures are present, and elastomerics where there’s no need to add structural support, but water needs to be kept out of the treated area.
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　　Concrete structures are subject to a wide variety of environmental stresses, many of which can cause damage, like cracks, heaving or sinking. Once settlement begins, these problems almost always get worse over time as the soil beneath the structure continues to erode.
　　One of the gravest threats to the structural health of your home is the sinking or settling of your concrete foundation. A foundation is built to stabilize the entire home, but cannot preserve its shape or structural integrity when the ground beneath it no longer provides strong and steady support.
　　This can happen when the soil beneath a concrete slab becomes inadequately packed (low in density) or overly water absorbent (causing expansion). As the soil collapses or goes through a cycle of expansions and contractions, the overlying concrete will heave, bend and ripple, and over time sink progressively deeper into its own footprint.
　　The good news is that if you encounter this problem in your own home, a variety of solutions exist.
　　While underpinnings are usually the best option, some homeowners may opt for mudjacking or slabjacking using Polyurethane injection grouting depending on their home improvement goals. These two common foundation repair procedures can each help halt and reverse the sagging of your concrete slab foundations, and neither involves excessive inconvenience or massive life disruption – but which one works best?
　　Mudjacking and Polyurethane Injection: The Basics
　　When foundations begin to sink, it’s usually because voids exist underneath the concrete slab, and until the soil is reinforced and those voids are filled, it will be impossible to restore the foundation to its previous level of elevation without the use of underpinnings.
　　Mudjacking and polyurethane injection work to fill the voids in the soil under the structure, and help halt the unfolding catastrophe. Mudjacking lifts the concrete foundation up on a densely-packed, swelling wave of slurry (a mixture of hard fill including mud, sand, cement, crushed limestone, etc.), while polyurethane injection utilizes dense, durable, environmentally-safe polyurethane foam.
　　In each case, holes are drilled in the floor that penetrate through the concrete foundation and into the sunken spaces below (mudjacking holes are bigger and harder to patch). The slurry or foam is then injected in massive, concentrated quantities, enough to fill the underlying cavities and gradually lift the foundation (and all the weight above it) back to an adequate position. Once the technicians monitoring the procedure are satisfied they’ve added enough foam or slurry to support the concrete slab indefinitely, they will fill and repair the injection holes so the home’s floor looks as good as new.
　　These technologies are designed to restore sunken concrete foundations, but they can also lift many other concrete installations that might suffer the same fate. Polyurethane injection can be used to repair sinking swimming pools, roads, patios, sidewalks, driveways, garage floors or even outdoor basketball courts quickly and efficiently.
　　A Comparative Analysis
　　While these two technologies are roughly analogous in function and short-term effectiveness, there are some differences between mudjacking and polyurethane injection you should take into account before you choose one over the other.
　　Here is a list of the pros and cons of each concrete repair method:
　　Mudjacking
　　Pros
　　This is a fairly inexpensive procedure.
　　Mudjacking is a time-tested service that many contractors are familiar with.
　　The injection slurry is largely constructed from naturally occurring materials with no negative environmental impact.
　　Cons
　　The slurry is too rough in texture to completely fill underlying voids below a concrete slab, increasing the likelihood of further sinking in the near future.
　　Mudjacking can last for long periods, but it is inherently less reliable and usually does need to be replaced.
　　The injected materials are extremely heavy (30-50 times heavier than their polyurethane equivalent) and can cause a new round of soil compression (and foundation sinking) beneath the slab.
　　The slurry materials are prone to washing out if exposed to underground water penetration through heavy rainfall, poor drainage, underground water pipe leaks, etc. (these are common causes of foundation damage).
　　Large holes must be made in flooring
　　Mudjacking equipment is cheaper than polyurethane equipment and materials.
　　Polyurethane Injection
　　Pros
　　Polyurethane injection is a long-lasting procedure.
　　Lightweight materials are used that will not cause additional soil compression and will flow easily during the injection process.
　　The polyurethane density is sufficient to completely fill cavities below a sinking foundation.
　　The soil below the foundation will mix well with the polyurethane and gain greater strength as a result.
　　A feature of polyurethane that will make the end results more attractive is a smaller injection hole. Polyurethane utilizes a hole that is only 5/8” or smaller, compared to mudjacking holes that run between 1” and 2”.
　　Cons
　　Fewer contractors have access to this procedure and it is not as widely available to homeowners as a result.
　　Equipment and materials are expensive and often not available to smaller contractors that specialize in residential work.
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　　Assembly of NPT Piping
　　NPT stands for National Pipe Taper — pipe and High Pressure Grease Fitting have a tapered thread profile.
　　The tapered thread seals use an interference fit between the male and female threads. NPT fittings should never bottom out in assembly. By hand assembly only, the pipe or fitting should only screw in part way before jamming. If an NPT pipe or fitting screws all the way into the female port without binding, the threads are either incorrectly tapped, worn out, or the tapers are grossly mismatched.
　　Within this specification, only specific line classes are permitted use of threaded piping, with some permitting up to NPT 2. ASME Standard B1.20.1 Pipe Threads, General Purpose identifies the required thread length engagement for hand tight plus wrench tight positions during assembly.
　　It is important to understand that torque is not the appropriate assembly technique (i.e., "Tight is not right") for NPT assembly, but rather thread engagement by the number of turns. Torque is not an appropriate method to makeup connections due to the differences in thread surface roughness, variance in threads and taper, lubricity of thread compounds, and other factors.
　　Fit to Hand Tight - FTHT
　　Fit to Hand Tight (FTHT) is commonly referenced in threaded piping assembly as the hand tightened position, without compound or tape applied. Table 11 below identifies the intended thread engagement in hand tight and wrench makeup for NPT 1/8” to 6”.
　　This procedure calls for a “dry fit-up” of the pipe and fitting to the L1 position during assembly.
　　Step One: From the position of FTHT the technician should count the remaining threads on the pipe, as well as mark the pipe and fitting on the axis of the pipe, to establish dry fit position.
　　Step Two: Following application of thread compounds and/or tape, the pipe connection should be returned to the hand tight position then further tightened by wrench the additional turns as prescribed in the ASME Standard for proper thread engagement.
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　　Epoxy (EP) and Polyurethane (PU) flooring are mostly used for industrial flooring around the world.
　　Epoxy floor systems are commonly used in heavy-duty industries, warehouses, logistics and heavy-duty general manufacturing. Whenever there are operations that involve heavy vehicle movements, for instance, forklifts, Epoxy floor coatings are considered.
　　In general Epoxy floor coating are tougher. They have higher durability and higher compressive strength as compared to polyurethane Waterproof Resin Coating flooring.
　　Polyurethane floor coatings, on the other hand, are typically “softer”. They are more flexible and therefore more scratch resistant. PU flooring can also absorb impact much better than epoxy flooring.
　　Due to the fact that the PU flooring is more flexible, they are a good choice for substrates that are more flexible or cause vibrations, such as multi-storey carparks. The flexibility of PU coating can also act as a waterproofing layer in order to prevent concrete (substrate) cracks to move through the coating and appear on the top surface.
　　When it comes to chemical exposure, Polyurethane flooring is the better option especially in the food industries like dairy, milk and beverage production where the floor is exposed to lactic acids and other fruit acids. However, if the floor is exposed to battery acids (sulfuric acids), Epoxy flooring will be a better choice.
　　An important note on chemical exposure is that it can change the colour of the coating. Any chemical leakage or exposure on the floor need to be removed as soon as possible to avoid penetration and damage which could result in danger to the environment. The right flooring system can be recommended by understanding the kind of chemicals used in the facility beforehand.
　　Pu flooring materials are much more sensitive to moisture presence. Any condensation, floor moisture or extreme high humidity during the application of a PU flooring material can cause heavy damage in terms of bubbles, blisters, pinholes and wrinkles on the top surface as well as debonding issues from the concrete substrate.
　　Epoxy flooring materials are also sensitive to moisture but not as much compared to PU flooring materials.
　　Pu flooring materials are usually faster curing than epoxy flooring materials. If a project need to be handed over in a short amount of time, PU flooring could be a consideration. However, applying PU flooring materials require experienced applicators due to its faster pot life. PU flooring material is slightly more expensive in general.
　　There are many industrial flooring products in the market. It is important to understand that price is not always the only factor, more so about considering the right kind of material for the facility and/or intended purpose.
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　　High Pressure Grease Fittings are a common component found on nearly every mode of transportation or piece of machinery. Pipe threads, which are formed onto the grease fitting’s shank, allow a large portion of fittings to securely attach to their mating component.
　　What Are The Different Elements Of A Pipe Thread
　　Pipe threads are comprised of several elements:
　　Truncation - The material moved from the theoretical Vthread triangle of the thread form.
　　Crest - The highest point of a thread, opposite the root.
　　Root - The lowest point of a thread, opposite the crest.
　　Flank - Thread portion joining the thread root and crest.
　　Angle - The angle between the adjacent thread flanks.
　　Various configurations of these elements can result in a wide variety of potential thread styles. During the mid to late 1800’s, pipe thread types started to become standardized across the globe, thus providing manufacturers a means for creating compatible and interchangeable parts.
　　What Are The Different Pipe Threads Used On Grease Fittings?
　　There are ten common types of pipe thread standards used for grease fittings. SAELT, NPTF, PTF, UNF, UNEF, ISO Metric, BSF, BSPP, BSPT, and German Thread are the most popular.
　　SAELT (Society of Automotive Engineers) threads possess SAE pipe thread dimension of 1/4"28 taper. Grease zerk fittings in the automotive industry as well as many other industrial machines and standard duty applications use SAELT threads. These threads are considered selfsealing and do not require additional sealing compound for a leak free connection.
　　NPTF (National Pipe Taper Fuel) threads are a tapered thread that provides a pressure tight seal without the need for applying additional sealing compound. This is often referred to as "dry sealing" as the interference fit between mating threads prevents fluid leakage.
　　PTF (Pipe Thread Fuel) threads are similar to NPTF threads featuring an interference, dry sealing fit. The primary difference between PTF and NPTF threads, however, is that PTF threads are shorter in length by one thread turn. Other PTF thread variations include PTFSAE Short, PTFSpecial Short, and PTFSpecial Extra Short.
　　UNF (Unified National Fine) threads follow an inch standard and are used in applications with liberal clearance tolerances. These are a common thread designation for general applications. UNF threads are considered a parallel thread and should be accompanied with a sealing compound to provide a leak resistant connection.
　　UNEF (Unified National Extra Fine) threads are similar to UNF threads but with a tighter profile. These are ideal for tight tolerance applications and allow for finer tension adjustment than UNF threaded fittings. Like UNF threads, UNEF threads are parallel and require a sealing compound to create a leak resistant connection.
　　ISO Metric (International Organization for Standardization) threads are one of the most widely used metric threads. These selfsealing, tapered threads are one of the first standards originally agreed upon when the International Organization for Standardization was created.
　　BSF (British Standard Fine) was introduced in 1908 by the British Engineering Standards Association. BSF threads share the same form as BSW (British Standard Whitworth) threads and is still used today throughout Europe. BSF threads are a parallel thread that requires a sealing compound if leak proof connections are necessary.
　　BSPP (British Standard Pipe Parallel) is a coarse, Whitworth thread sometimes referred to as a BSPF (British Standard Pipe Fitting) thread. BSPP threads feature a parallel profile and is sometimes denoted with a "G" indicating a constant diameter. Both male and female threads are parallel and require a sealing compound for applications requiring leak proof connections.
　　BSPT (British standard Pipe Tapered) is British standard thread. These selfsealing threads can be used in low pressure applications for plumbing. While the male threads with this designation are always tapered, the female threads are typically parallel. BSPT threads are mostly used throughout Europe and the UK.
German Thread pipe threads are a DIN standard thread established in Germany after the introduction of BSPT threads. Even though it identifies by a different name, it possesses all of the same attributes as BSPT threads. Like BSPT threads, German threads are also tapered to provide an interference fit to reduce the risk of spiral leakage.
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　　High Pressure Grease Fittings are a common component found on nearly every mode of transportation or piece of machinery. Pipe threads, which are formed onto the grease fitting’s shank, allow a large portion of fittings to securely attach to their mating component.
　　What Are The Different Elements Of A Pipe Thread
　　Pipe threads are comprised of several elements:
　　Truncation - The material moved from the theoretical Vthread triangle of the thread form.
　　Crest - The highest point of a thread, opposite the root.
　　Root - The lowest point of a thread, opposite the crest.
　　Flank - Thread portion joining the thread root and crest.
　　Angle - The angle between the adjacent thread flanks.
　　Various configurations of these elements can result in a wide variety of potential thread styles. During the mid to late 1800’s, pipe thread types started to become standardized across the globe, thus providing manufacturers a means for creating compatible and interchangeable parts.
　　What Are The Different Pipe Threads Used On Grease Fittings?
　　There are ten common types of pipe thread standards used for grease fittings. SAELT, NPTF, PTF, UNF, UNEF, ISO Metric, BSF, BSPP, BSPT, and German Thread are the most popular.
　　SAELT (Society of Automotive Engineers) threads possess SAE pipe thread dimension of 1/4"28 taper. Grease zerk fittings in the automotive industry as well as many other industrial machines and standard duty applications use SAELT threads. These threads are considered selfsealing and do not require additional sealing compound for a leak free connection.
　　NPTF (National Pipe Taper Fuel) threads are a tapered thread that provides a pressure tight seal without the need for applying additional sealing compound. This is often referred to as "dry sealing" as the interference fit between mating threads prevents fluid leakage.
　　PTF (Pipe Thread Fuel) threads are similar to NPTF threads featuring an interference, dry sealing fit. The primary difference between PTF and NPTF threads, however, is that PTF threads are shorter in length by one thread turn. Other PTF thread variations include PTFSAE Short, PTFSpecial Short, and PTFSpecial Extra Short.
　　UNF (Unified National Fine) threads follow an inch standard and are used in applications with liberal clearance tolerances. These are a common thread designation for general applications. UNF threads are considered a parallel thread and should be accompanied with a sealing compound to provide a leak resistant connection.
　　UNEF (Unified National Extra Fine) threads are similar to UNF threads but with a tighter profile. These are ideal for tight tolerance applications and allow for finer tension adjustment than UNF threaded fittings. Like UNF threads, UNEF threads are parallel and require a sealing compound to create a leak resistant connection.
　　ISO Metric (International Organization for Standardization) threads are one of the most widely used metric threads. These selfsealing, tapered threads are one of the first standards originally agreed upon when the International Organization for Standardization was created.
　　BSF (British Standard Fine) was introduced in 1908 by the British Engineering Standards Association. BSF threads share the same form as BSW (British Standard Whitworth) threads and is still used today throughout Europe. BSF threads are a parallel thread that requires a sealing compound if leak proof connections are necessary.
　　BSPP (British Standard Pipe Parallel) is a coarse, Whitworth thread sometimes referred to as a BSPF (British Standard Pipe Fitting) thread. BSPP threads feature a parallel profile and is sometimes denoted with a "G" indicating a constant diameter. Both male and female threads are parallel and require a sealing compound for applications requiring leak proof connections.
　　BSPT (British standard Pipe Tapered) is British standard thread. These selfsealing threads can be used in low pressure applications for plumbing. While the male threads with this designation are always tapered, the female threads are typically parallel. BSPT threads are mostly used throughout Europe and the UK.
German Thread pipe threads are a DIN standard thread established in Germany after the introduction of BSPT threads. Even though it identifies by a different name, it possesses all of the same attributes as BSPT threads. Like BSPT threads, German threads are also tapered to provide an interference fit to reduce the risk of spiral leakage.
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　　Conformal coating is a cost-effective way to protect electronic products against water, chemicals, and dust, which could harm the PCB.
　　In some cases, you can save yourself a lot of money and anguish by applying waterproof conformal coating on a PCB rather than going through the substantial effort of creating an IP65 waterproof housing
　　In this article, we will look at the different types of conformal Waterproof Resin Coating and the various application methods. When to use a conformal coating? Which conformal coating method will work best? What are the pros and cons of each method?
　　We’ll also discuss, conformal coating inspection, conformal coating removal, and electronic coating.
　　1- Waterproof Conformal Coating Vs Waterproofing The Housing
　　Making a plastic housing waterproof generally requires a lot of skill and experience. Even then quite a few iterations of testing and mold modifications will be needed to get it right.
　　It generally involves adding a soft material such as TPR between the mating surfaces. The cheapest way to do this is to friction-fit or glue a TPR o-ring in place, but this is a laborious and error-prone process.
　　Better is to combine the soft and hard plastic into a single part, using overmolding. For high quantity products, such as toothbrushes 2K molding is used technology, where a mold…. molds and injection machines.
　　The molds and injection machines needed for this technology tends to be roughly 3 times as expensive as for a single plastic part.
　　For order quantities under say 50K it is much more advantageous to use the “sneaker method” where an ABS part is taken out of one mold and walked over to the next machine where the TPR is injected over it.
　　Best is if the ABS part is still warm so that the second material will bond better to the first.
　　Conformal coating basically bypasses all those additional investments in injection molds, engineering, and endless testing and mold modifications.
　　2- The Reasons To Use A Conformal Coating
　　During the electronics product development process comes the embedded electronic design stage, especially the core of electronic products: the PCB.
　　In consumer electronics, the failure of an electronic device such as a mixer simply means a costly RMA. But the reliability is even more important in B2B industrial applications. Many electronic systems are critical to be able to run production or service, while in some cases electronic failures can be life-threatening.
　　So protecting the circuit is important, especially so when it is exposed to an aggressive environment (Solvents, high temperature, humidity/water spills, etc). Waterproof conformal coating can help with all of this.
　　In fields such as automotive, aeronautics, or medical, it is essential to provide PCBs with a suitable conformal coating in order to increase reliability.
　　When applying a conformal coating, there are four factors to be checked and optimized:
　　The conformal coating material
　　The conformal coating application method
　　The conformal coating curing and drying method
　　The conformal coating inspection method
　　Your best pick for each of these factors will depend on the production volume and lead times, the fixtures available, the environment, the complexity of the PCB, etc.
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　　The mechanism, which is abbreviated as a Waterproof Resin Coating, is part of the fuel system of a diesel engine, but there are also models for gasoline power units. The only difference between the fuel pump of a diesel engine is that the pressure it generates is much higher than its gasoline counterpart. The reason for this is the fundamental features of the unit’s operation. In the cylinders of a diesel engine, air is first compressed to such an extent that it heats up to the ignition temperature of the fuel.
　　When the piston reaches top dead center, the nozzle sprays fuel and it ignites. The injector has to overcome enormous pressure. For the system to work properly, the pump must create a higher head than in the cylinders.
　　In addition to the mentioned function, the pump must also supply fuel in portions, depending on the operating mode of the power unit. This parameter is determined taking into account the rotation of the crankshaft. In a modern car, this process is controlled by an electronic control unit.
　　DEVELOPMENT AND IMPROVEMENT HISTORY
　　This device was first developed in the 1930s by Robert Bosch. In passenger cars, injection pumps began to be actively used in the second half of the same decade.
　　Since the first gasoline engines were equipped with carburetors, only diesel units needed such a mechanism. Nowadays, gasoline engines with a direct injection system also have a pump of this type (the carburetor is already extremely rare - only in older generation cars).
　　Although the principle of operation of the pump has remained practically unchanged, the mechanism itself has undergone multiple upgrades and improvements. The reason for this is an increase in the environmental standards and performance of the internal combustion engine. Initially, a mechanical Polyurethane Waterproof Coating was used, but it was not economical, which led to volumetric emissions of harmful substances. Modern electronic pumps show excellent efficiency, which allows transport to fit into the framework of environmental standards and satisfy modest drivers.https://www.boyuwaterproof.com/

Simple is almost always better. It certainly is when it comes to injection pump control. Using a fully integrated drive system reduces total cost, speeds on-site installation and improves reliability.
　　The key components of an injection pump system are:
　　High Pressure Injection Pump
　　Field signals
　　Drive
　　Controller
　　SCADA communications
　　There are several ways to simplify installation, operation maintenance and total cost.
　　Integrate at the factory. By tying all the components together off-site you minimize the time required on-site. The pump will be running sooner, and expensive field service time is minimized.
　　Test at the factory. The drive system and communications should be thoroughly tested before shipment to the pump location. Only site specific testing should be done on-site. Again, the pump will go online faster.
　　Use a drive package. A drive package bundles the drive, controller and communications in a single integrated unit. That is simpler. It is pre-integrated and tested. It may have a smaller footprint. It does not require a separate installation services for the logic and the drive, so it saves time and cost. The system is more reliable because one vendor is responsible for all drive system components.
　　Call one service company. Simplifying the configuration also simplifies maintenance. When there is a problem it is clear who should be called. This results in faster service.
　　Take a look at the initial costs for traditional component-based systems versus an integrated drive system. In addition to being simpler, fully integrated systems cost less.
　　Two of the critical pieces of equipment for controlling injection pumps are the variable frequency drive and the PLC.
　　VFD – controls the pump motor
　　PLC – controls the logic, which defines what is happening at what rate and when
　　These two components must inter-communicate and operate together as a system. If they are not already connected before they arrive on site, installation and configuration is required for each device and between them.
　　Integrated Injection Pump Drive System
　　In an integrated system, the PLC and VFD come pre-configured and pre-integrated. While this system may cost slightly more than a traditional drive, it eliminates the need for a separate PLC and its integration. Eliminating the separate PLC saves $1,500 to $10,000 for the equipment, another $1,000 in integration and typical startup configuration costs of $2,000.
　　In addition to the hard dollar savings at installation time, an integrated drive system saves time. There is no need for subsystem integration. The system is up and running in less time. Check out our video comparing costs in a traditional versus integrated drive system.
　　A User Perspective
　　Integrated Control Solutions uses integrated drive systems to control the pressure of fluid pumped downhole. If pressure gets too high, they remotely slow the pump. Just that capability is a huge benefit to them. Other solutions have not been able to match the capability provided by the pre-integrated drive system and end up overheating or burning out cards. From their experience, the drive system is “…probably the best drive on the market that I’ve seen, and I’ve seen a lot of them out there.” To learn more, watch this video.
　　Economic, Commercial, Quality
　　A pre-integrated drive system operates as one system, observes M4 Equipment president. “When you start to put a lot of pieces together sometimes it doesn’t all fit,” he continues. “If you put it together at the factory, you know installation will go much smoother at the end of the day.”
　　The HPS drive system interface is designed specifically for Injection Pump Machine. It connects to pressure instrumentation and vibration monitoring through its user interface. “This is a specialized high quality drive for the application, like no other,” he concludes.https://www.boyuwaterproof.com/

When it comes to seawalls, there is a lot more to learn than meets the eye. A seawall is like a living, breathing thing: especially in the way that it is designed to function. But like all living breathing things, they have a finite lifespan. For many of them, it’s a mere 20 – 30 years. Depending on where you live, replacing a seawall can cost anywhere from $150 to $500 per foot. That’s enough for some homeowners to choose to move instead of rebuilding their seawalls. Today however, signs of seawall distress can be solved before they get too bad through the application of Waterproof Resin Coating to seal leaks, fill voids, and stabilize the surrounding soils.
　　Although seawalls are found around lakes and rivers, it is around the ocean that they are put to the most difficult test. Salt corrosion, tidal action, currents, boat wakes, storm surges and sometimes hurricanes all deliver a constant beating on the seawall. But many of the forces are also coming from the landward side of the wall. Every time it rains or the irrigation system runs, and every time the tide goes out; all of the groundwater above the waterline has to vent or equalize. Tremendous pressures can build up if that water is trapped and cannot make its way into the sea or the storm water system.
　　Correct construction of a seawall will include a drainage system to handle the bulk of the water that comes from rain in addition to check valves, weep holes, or seams to handle the daily influx and outflow from tide and wave action. Although these systems are designed to retain the soil behind the seawall, over time the materials degrade or can be disturbed by settling. The result is a loss of soil and the inevitable sinkholes and / or low spots that will occur along the wall. Other times, the weep holes and vents become clogged and the water has no way to escape except to force its way down and out from underneath the base of the wall. When this occurs there will again be sinkholes and sometimes wall failure.
　　When signs of sinking ground are observed, you can almost be sure there are voids below that are unseen and dangerous. Sometimes these voids can extend below an adjacent patio, dock, or pool deck, causing those to sink and crack. Anticipating those problems is key to keeping those problems at bay, and proper application of Polyurethane Waterproof Coating is the solution. a lightweight injection resin that can be injected along the wall where the settling is occurring and generate multiple benefits. It will seal any leaks along the wall, fill the voids that have occurred, and mix with the soil to form a solid, impermeable mass. Combined with proper drainage, this method can extend the life of your seawall.
　　If you live along the water, it is always going to be man against nature. That seawall is keeping your property from damage and from disappearing altogether.https://www.boyuwaterproof.com/

The High Pressure Injection Pump is critical to this process. It is responsible for pressurizing, metering, distributing and timing the fuel delivery to the engine under each load and rpm condition. Though the nozzle actually supplies the fuel to the cylinder bore, it is the injection pump that allows that to occur.
　　Injection pumps have proven to be very reliable but since it is the heart of the diesel, if anything is askew the engine will not run properly and can possibly become damaged. Thus, it is prudent for every farmer to have a cursory knowledge of injection pump operation and service requirements.
　　Within the agricultural equipment community, a variety of different High pressure engines have been employed. Some companies produce their own engines . while others use those made by Cummins, Caterpillar or Detroit Diesel, to name a few. Regardless of the make an injection pump is part of the fuel system and can vary in style. There are two basic types of injection pumps found on farm engines. These are either an in-line or rotary distributor design.
　　Fuel is drawn from the fuel tank by a mechanical lift pump that is independent of the DB2 injection pump and passes through filters and then into the injection pump inlet. The fuel then flows past the inlet filter screen to the vane-operated transfer pump contained in the pump end cap. The vane-type transfer pump consists of a stationary liner and spring-loaded blades carried in slots at the rear of the transfer pump rotor. As the blades rotate in the liner they move outward and the volume increases until the leading blade passes out of registry with the inlet slot. The fuel between the blades is carried to the bottom of the transfer pump liner and enters the outlet groove. As a result, pressurized fuel is delivered through the pump into a channel to the hydraulic head passage.
　　The pressure regulator assembly in the transfer pump regulates fuel volume based on changes in pump speed — pressure increases with pump speed.
　　The advance system is a simple, direct-acting hydraulic mechanism. Powered by fuel pressure from the Injection Pump Machine the advance mechanism moves the power piston to rotate the cam to vary the delivery timing. It advances or retards the start of fuel delivery in response to engine speed changes. When engine speed decreases hydraulic pressure is reduced and the cam retards because of low transfer pressure. When engine speed increases so does the pump pressure and this moves the advance piston and cam.https://www.boyuwaterproof.com/