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Regular nipples are straight, including male threads on both ends. Only digits are allowed. They have excellent resistance to mechanical vibration. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. The cross-sectional area of standard 100 psig rated copper tubing is about 30 times larger than standard polyethylene high flow tubing. Threads that provide a simple connection but no assured seal are known as straight threads. Maximum amount of digits: 6. Pneumatic push-to-connect tube fittings form secure, instant connections between lengths of tube without requiring tools, threading, soldering, or gluing. In order to eliminate leaks, caused by the fittings, we replaced the standard push-to-connect fittings with the two-piece ferrule wedge design. Learn more about our standard miniature air fittings by clicking on the product listing below or contact Pneumadyne to discuss your custom pneumatic system connector requirements. Polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) are fluorocarbon-based polymers typically used for temperature conditions above 500F (250C). Access My Account, Order History, Lists and more here. Only when a fitting could not be reset was replacement considered and then the production unit had to be shut-down longer for this to be implemented. End fittings present specific surfaces for uniting vessels in pneumatic systems. The project cost, for materials, was \$2,270.00. Each machine had eight smaller pneumatic cylinders fed with 1/4 standard push-to-connect fittings and 1/4 nylon tubing. That indicates less air is wasted and less energy is used to do the same amount of work. Some of The Fittings have specific functions in a system, as described below. Compression fittingsare all types of fittings which use compressive force to connect the vessel to the fitting. Pneumatic inline and tee filters remove unwanted particles from airflow. The plant asked us to identify the magnitude of the compressed air leaks and what actions would be appropriate to permanently eliminate (or at least greatly reduce) the negative impacts: production down-time, scrap, and lost compressed air. Crimp fittings include putting a hose over a tubular end and crimping it with a ring, sleeve, or crimp socket. Air fittings feature tighter seals and have lower pressure requirements than hydraulic fittings and are typically offered in various connector types. Providing System Solutions For Fluid Control, Pneumatic Manifolds: 90 Output Ports, 1.5" Spacing, 2-Station Stainless Steel Pneumatic Manifolds, 3-Station Stainless Steel Pneumatic Manifolds, 4-Station Stainless Steel Pneumatic Manifolds, 5-Station Stainless Steel Pneumatic Manifolds, 6-Station Stainless Steel Pneumatic Manifolds, 7-Station Stainless Steel Pneumatic Manifolds, 8-Station Stainless Steel Pneumatic Manifolds, 9-Station Stainless Steel Pneumatic Manifolds, 10-Station Stainless Steel Pneumatic Manifolds, 2-Station Polypropylene Pneumatic Manifolds, 3-Station Polypropylene Pneumatic Manifolds, 4-Station Polypropylene Pneumatic Manifolds, 5-Station Polypropylene Pneumatic Manifolds, 6-Station Polypropylene Pneumatic Manifolds, 7-Station Polypropylene Pneumatic Manifolds, 8-Station Polypropylene Pneumatic Manifolds, 9-Station Polypropylene Pneumatic Manifolds, 10-Station Polypropylene Pneumatic Manifolds, 2-Station (90 Output Ports, 1.5" Spacing), 3-Station (90 Output Ports, 1.5" Spacing), 4-Station (90 Output Ports, 1.5" Spacing), 5-Station (90 Output Ports, 1.5" Spacing), 6-Station (90 Output Ports, 1.5" Spacing), 7-Station (90 Output Ports, 1.5" Spacing), 8-Station (90 Output Ports, 1.5" Spacing), 9-Station (90 Output Ports, 1.5" Spacing), 10-Station (90 Output Ports, 1.5" Spacing), Electroless nickel plated for corrosion resistance, Precision machined brass & stainless steel, Choice of barb, threaded & push-to-connect styles, Type of connection and the function it performs, Operational pressure of the pneumatic system, Amount of vibration produced by the pneumatic system. Some of The Fittings are used for changing the direction or having multiple branches of a line. Tapered threads will have a smaller measurement at the first thread than at the final thread. Picking the correctPneumatic Fitting Typefor a special application depends on many factors. Tee_Connects three flow divisions in a T-shaped intersection. The sleeve retracts to disconnect the two ends of the fitting. Choosing Durable No-Air-Leak Pneumatic Tubing Fittings. In order to arrive at the above Best Practice scenario, the type and size of the operating tubing should also be reviewed. Your email address will not be published. If this was accurate, then the management estimate of compressed air leaks was seriously understated. Fitting material is crucial in determining several physical properties of the part as well as gas compatibility. Your recently viewed items and featured recommendations, Select the department you want to search in. The total fitting count on the inserter machines was: The seven (7) case packer machines each deployed fifty-one (51) double-acting pneumatic cylinders. Here a listing of the more popular styles is available with a description of their applications. Coupling_Connects two similar pipes by solvent welding, soldering, or threading. It is mixed with zinc, silicon, copper, manganese, and/or other metals to increase its strength and hardness. 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Atlas Copco Invests in Production Technology and R&D in Belgium, SUTO iTEC Opens New Regional Headquarters in Michigan, Tsunami Extends Air Filtration & Drying Product Lines. Plant management indicated that identified leak repairs were almost constant on all seven production lines. These seven packaging lines had been operating for just over five years. A fitting produced to connect to a tube with a 2 OD is considered as a 2 OD fitting. This type consists of a body with a flared or coned head. Home > Electrical Component > All Types of Pneumatic Fittings: Specifications and Applications. The clear counter-reference here would be hydraulic operations, in which action is driven by liquids kept under similar compression forces in a sealed system. There are vast types of fittings installed in pneumatic systems which act in different functions. We have found cases where productivity was down or the pressure had increased because copper tubing had been replaced with nylon tubing and was not capable of delivering the same compressed air flow at the necessary pressure. But preparing controlled air pressure has practically endless applications, such as operating a nail gun at a worksite to paint a car, restoring wheels, or driving advanced power tools. Thread Availability: Male pipe, Female pipe, British Parallel Pipe, British Tapered Pipe, Metric; One-piece push to connect fitting including glass-reinforced black nylon body. Types of Pneumatic Fittings_ Pneumatic fittings are components used to connect divisions of pipe, tube, and hose in pneumatic systems (pressurized gas). The objective of this article is to contrast the operating benefits, under demanding operating conditions, of the typical push-to-connect fittings and the alternative two-piece ferrule sealing wedge fitting. Cross_4-way connections, presenting one inlet and three outlets or vice versa. Characteristics of this type are: They are compressive fittings that include a sharpened ferrule that bites the tube when compressed and presents the seal. The operating pressure is typically measured in pounds per square inch (psi). 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Proper sizing is necessary to the successful fitting preference, as oversized or undersized parts will both be wholly incompatible or will seal or connect inefficiently. We strongly suggest, however, keeping careful records of compressed air repairs, flow and pressure to maintain operational efficiency. Tube Compatibility: Most Thermoplastic ( 85A Polyurethane excluded) in both inch and metric dimensions. There had never been a planned project to replace all of the fitting at one time. this type is one of the push to connect types with the following characteristics: As the name indicates, the threaded fittings have screw threads on their inner (female) or outer (male) surfaces intended to accept connections with mating threads. The push-to-connect fitting has ends that are designed to take tubing by pushing it into the end. All rights reserved. As a piece of general information, a pneumatic fitting can be any connector designed to join components or devices in a sealed and pressurized dry-air arrangement. Top subscription boxes right to your door, 1996-2022, Amazon.com, Inc. or its affiliates. Finally, if production equipment is using standard push-to-connect fittings and there are no compressed air leaks - there is no reason to change. Any deviation will provide a good indication of compressed air leaks which can and should be repaired. than correctly selected and installed hard metallic tubing. Typical Two-Piece Ferrule Wedge Type Fitting, It would be to any plants advantage to monitor the inlet compressed air flow and pressure to any production machinery using a significant number of tubing and fittings. The vast majority of these channels are connected to each other and several devices are powered by a wide diversity of pneumatic fittings, valves, couplings, and adaptors. These systems and fittings are generally applied today in all industries and purposes, ranging from assembly and production line setups to a wide type of industrial machinery, construction, handheld gadgets and workbench equipment. Few thread size standards are BSP (British Standard Pipe) and NPT (National Pipe Thread), though many other standards and usage often vary by country and industry. The wedge seal on the tubing, is formed by the front ferrule, pushed by the back ferrule, as the fitting is tightened. The seven (7) inserter machines each deployed ten (10) double-acting pneumatic cylinders. These factors are: Once these decisions have been made, there are a wide collection of fitting kinds to choose from. The back ferrule holds the vessel while pressing up against thehead ferrule, which spring-loads the front ferrule and produces a seal between the piping and fitting body. These precise threads produce a dry fit, expressing they seal without the requirement for an additional sealant, which is vital in applications where sealant addition could make contamination or corrosion. When a production unit was deemed to have zero compressed air leaks it was run again and a Best Practice pressure and air flow was measured and recorded with the same flow meter and gauge. They also display thermal conductivity and low electrical . Steel is durable and strong and has high resistance to heat. Operating beyond or below this rating may cause the fitting to fail; for example, it could break, leak or lose its seal). Adaptor_Connects two different pipes by solvent welding, soldering, or threading. As a reference, we calculated the cost to be \$2,151.00 if we had used the less durable push-to-connect fittings. Plain ends:they are fittings with surfaces that allow tubes or pipes to be connected by solder, adhesive, welding, or other permanent means. Without fittings, we can not use a compressor at all. Often you will have to up-size the nylon or poly-type tubing to replace copper or other hard metal tubing. Stainless steel is a combination of steel that comprises over 10.5% chromium. Flexible tubing itself is much more prone to leaks from vibration, abrasion, chemical abuse, etc. Savings Calculation: 104 scfm x \$122.63 scfm/year x .50 (%) x 7 lines = \$44,637 per year, Average Compressed Air Flow Savings Per Production Line. 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Material options include: Fittings can be manufactured with metal materials such as Aluminum, brass, steel, stainless steel. These fittings typically need crimping tools or instruments to make the connections. The operating temperature rangeis the operating range of temperatures or the temperature classes at which the fitting was designed to work, measured in degrees Celsius (C) or degrees Fahrenheit (F). There is very little (if any) relative movement between the fitting and tubing - so wear is minimal. This plant felt the compressed air leak-load, on the packaging machines, continued to remain above acceptable levels. At some point, the fittings useful life is gone when both the retainer and seal areas are too worn. British Standard Pipe Taper (BSPT), also known as R thread, British Standard Pipe Parallel (BSPP), also known as G thread. Tube compatibility: Nylon Semi-rigid, Polyurethane, Nylon, Fluoropolymer. Each machine had fifty smaller pneumatic cylinders fed with 1/4 standard push-to-connect fittings with polyurethane or nylon 1/4 tubing. You have Possibly used your compressor just as a tire inflator (a convenience item). Shop products from small business brands sold in Amazons store. The first action to proper sizing is choosing the appropriate measurement system for compatibility with the tools or assembly being fitted. What Are Pneumatic Pipes, Tubes, and Hoses, Types of the Pneumatic Fittings Based on the Function, Fittings that Extend or Terminate Pipe Lengths, Fittings that Connect Pipes of Smaller size, Fittings that Provide Special Connections or Functions, Types of Pneumatic Fittings Based on the Connection, Types of Pneumatic Fittings based in Materials, Different Features of a Pneumatic Fittings, What is Electrical Identification? Each thread size compares to a unique number of threads per inch (TPI). Some designs use ribbed seal material instead of O-rings. Galvanized steel is coated with zinc for rust protection and chemical resistance. Approvals: UL listed for flammable liquid, SAE J-512 compliant. It shows excellent cold flow, bi-axial strength, and yield elongation features and can be used in exposed applications as it is resistant to weathering, UV, and ozone. Flare fittings can handle higher pressures and a wide range of working parameters than standard compression fittings. Sometimes this is not true partially in areas with wash down cycles. www.airbestpractices.com/system-assessments/leaks. It also assumed that only fifty percent (50%) of this value would actually be recovered. Tubes, hoses, and pipes are sized based on the outside diameter (OD) and inside diameter (ID), measured in millimeters (mm) or inches (in). Once the type of fitting expected has been determined, the most fundamental feature of pneumatic fittings can be approached: proper sizing. Proper fittings are an investment. Preassembled fitting including a captive sleeve for high-pressure applications (1000 to 4300 P.S.I. Save my name, email, and website in this browser for the next time I comment. On a recent plant compressed air system review, Air Power USA was requested to do an in depth analysis of seven operating packaging lines. We can reassemble these fittings multiple times without damaging parts or piping. The thread size is based on the inside diameter of the vessel. is the practically the same as 4 mm, 5/16 in. They compressed air leaks kept appearing and it was impossible to have a no air-leak situation! Operating beyond or below this rating may cause the fitting to fail. See Terms of Use and Privacy Policy, All Types of Pneumatic Fittings: Specifications and Applications. They present excellent chemical resistance and dielectric properties. Complete leak repairs were made on all fourteen (14) machines and were tested with both ultrasound leak detectors. Pneumatic fittings may have other characteristics which add the functionality required for certain applications. All fittings were supplied by the OEM machine manufacturer. Your email address will not be published. Some of The Fittings are used for changing line size, such as Reducers thatCover all connections which join between two or more vessels of various sizes. Union_It is aCouplings that can be disconnected without cutting. Proper fittings present a better seal. TAILONZ PNEUMATIC Male Straight 1/4 Inch Tube OD x 1/4 Inch NPT Thread Push to Connect Fitting PC-1/4-N2 (Pack of 10), T TANYA HARDWARE Coupler and Plug Kit (14 Piece), Industrial Type D, 1/4 in. All Rights Reserved. Available in both inch and metric dimensions; Thread availability: Female pipe, Male pipe, British Parallel Pipe, British Tapered Pipe, Metric, Body material: Silicone-free glass-reinforced nylon, weld splatter resistant and silicone-free to meet the necessities of the robotic welding industry. The total electrical energy savings for the seven production lines, associated with the reduction in compressed air leaks, was estimated at \$44,637 per year. In addition to connecting pneumatic components and stopping the flow of unused ports, miniature fittings are also used to control air flow pressure and directional flow. They are generally used in pneumatic logic control systems and instrumentation. Every little bit helps not only the ecosystem but your wallet too. The most common angles are 45 and 90, but 22.5 elbows are also designed. Here some of the benefits of these fittings are presented. They then also had one larger pneumatic cylinder fed with similar 3/8 push-to-connect fittings and tubing. Having the right fittings introduces a world of possibilities. Plug_Closes off the flow at the end of a part, fastening inside the pipe by a weld, thread, solvent, or solder. Just imagine filling a tire without having a fitting. To read more System Assessment articles, visit www.airbestpractices.com/system-assessments/leaks. These materials have high melting points and are construction materials for applications that need high-temperature durability and chemical resistance. To begin, we held discussions with the plant personnel and discovered some interesting facts: We then examined the seven production lines and focused on the seven inserter and seven case packing machines on each line. You can find pipe thread sizing in various references, includingthis link which provides an excellent overview of pipe thread sizing. The operating pressure rangeis the practical range of pressures or the pressure classes at which the fitting was designed to work. They direct the air into the line so that we have the desired pressure. Aluminum islightweight and corrosion-resistant. is the practically the same as 8 mm. Elbow_Changes the direction of a flow at various angles. Brass is strong, corrosion-resistant, durable, has high-temperature ductility and good conductivity. Fittings can be manufactured with plastic materials such as Polypropylene, Fluororesins. Nipple_Allows two separate fittings to be attached to each other. Pneumatic fittings are often determined for certain temperatures, and pressure ranges depend on what they are designed to handle. It has low tensile strength and is accepted for its low density and corrosion resistance in low-pressure applications. Brass is a combination of copper and zinc. ), Tube Compatibility: Available in inch dimension only, Thread availability: Male pipe, Female pipe, Body material: Brass, Copper, Brass, Seamless Steel, Thermoplastic. Ball and sleeve fitting joins an outer sleeve to an inner (ball) fitting. An inventory was made of the tubing and fittings on the pneumatic circuits of each machine. Typical Two-Piece Ferrule Mechanical Grip. Some ball and sleeve fittings perform as push-to-connect fittings, which are suitable for applications demanding frequent disconnection and reconnection of the hose part. Straight threads will have the same three measurements. Maintenance personnel liked this aspect of the push-to-connect fitting style because it was quick and easy. When subjected to vibration, typical push-to-connect fittings can exhibit relative movement by the tube on the O-ring and retainer (also called grippers). Stainless steel is a strong material with superior chemical and corrosion resistance. Their connection (typically threading) provides for easy release. Pneumatic denotes the delivery of power explicitly through the controlled flow of pressurized gases (including air). This type is two-ferrule assemblies. In many workplace circumstances, the power that a pneumatic system presents can often prove more reliable, versatile, cost-effective and safer than a comparable setup powered by different electric motors and actuators. Compared to hydraulic fittings, pneumatic fittings are typically identified by tighter seals and lower pressure specifications. The compression is performed by tightening a nut onto the fitting over the piping and ferrule, securing and compressing the vessel inside. The total fitting count on the case packer machines was: Compressed air inlet pressure and flow data (to the inserter and case packer machines) was collected on each line running during normal production hours. This was calculated assuming a cost for compressed air of \$122.63 per scfm per year. Pneumatic pipe manifolds split airflow to distribute compressed air through a system or to supply multiple tools from one air line. For more information contact Don van Ormer, Air Power USA, tel: 740-862-4112. At this plant, the seven production lines of inserter and case packer machinery required the introduction of wedge-type fittings to eliminate compressed air leaks. Maintenance personnel confirmed that probably only half of their repairs were reported and logged. Thread availability: Male pipe, Female pipe, British Tapered Pipe; Tube compatibility: Parker Microweld tubing. Pneumatic fittings provide the essential link between tubes, hoses and other components in a pneumatic system. Discover more about the small businesses partnering with Amazon and Amazons commitment to empowering them. Like standard compressive fittings, Bite-type fittings require no special tools to assemble but present a more robust, higher pressure connection. NPT threads are most commonly used in machinery built in the U.S. Composite fittings are made from combinations of materials, such as fiberglass, carbon, and graphite. The flexibility and constant transmission of vibrations and movement to the sealing area of the push-to-connect fitting tends to shorten itseffective life. It is essential to distinguish what type of vessels are being used in the system to determine what fittings are suitable. It has the durability and strength of steel while also presenting excellent corrosion resistance, however at a higher cost. Pneumatic power systems involve any type of mechanized or automated processes or machinery in which action is driven by pressurized gas or compressed air. 26 x push-to-connect fittings: 1/4 x 1/4 size, 4 x push-to-connect fittings: 3/8 x 3/8 size, 75 x push-to-connect fittings: 1/4 x 1/4 size. This will accelerate wear issues leading to a higher propensity to leak. Valve_Connects vessels with the addition of a valve for controlling flow. Caps_Covers the end of a division, attaching to the pipe by a weld, thread, solvent, or solder. If no movement in the line is required during operation, then wedge-type fittings with properly selected hard metal tubing will further minimize or eliminate operating leaks. If the tubing side of a fitting is metric, then the fitting is probably BSPT or BSPP, BSPT is most commonly found on Chinese and Japanese machinery, BSPP is most commonly found on European machinery, 5/32 in.
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