No matter if it is used with potable water, instrumentation, hydraulic and pneumatic systems, or any combination thereof – this 3/8 compression fitting is a reliable choice that resists vibration and thermal expansion that would usually loosen or leak other types of fittings.
One excellent way to prevent leaks with these fittings is to first loosen the retainer nut slightly before tightening. This breaks up any resistance caused by time or corrosion building up on its threads and allows you to pull it more easily.
Brass
Brass compression fittings provide an efficient and cost-effective method of connecting copper or plastic pipes without using solder, which can be dangerous and require special tools to operate safely. They create a watertight seal while being vibration-resistant for high-pressure systems – these fittings, typically manufactured from copper-brass alloys with zinc content, are also highly corrosion-resistant.
Sleeves come in an assortment of sizes to meet most copper, aluminum, and thermoplastic tubing applications. A key consideration when it comes to sleeves is sleeve diameter; ideally, it must match that of tubing for tight sealing purposes – otherwise, leakage could occur, or excessive pressure buildup may result.
As soon as the nut is tightened, a ferrule penetrates both sides of the sleeve, compressing it around the pipe for a secure seal that won’t deform due to vibration or other forces – creating an everlasting connection that doesn’t leak!
Brass compression fittings do not need to be lubricated prior to assembly, although plumbers’ tape or food-grade lubricant may help facilitate their assembly process. A layer of lubricant may also be applied between the tubing and its sleeve to help avoid friction between them and the fitting itself.
A sleeve should be cut to its exact dimensions to ensure an even, comfortable fit, avoiding rough or uneven surfaces that could otherwise create leak pathways. Furthermore, any dirt or debris accumulating within its confines that might damage the ferrule and result in leakage should also be thoroughly removed to ensure leak-free performance.
Once a sleeve is secured to the tube end, a brass insert should be added for additional stability. When selecting these elements, it is essential to consider both their outer diameter and temperature limits; consequently, both components should be chosen accordingly. Because neither aspect was designed to join together directly, it must first be installed onto its fitting body before tightening its nut manually to further tightening by a wrench. Over-tightening could potentially damage or cause leakage; therefore, drawing is only enough to achieve an airtight joint seal.
Stainless Steel
Compression fittings provide reliable connections between tube sections. They excel in high and low-pressure environments, as well as various temperatures and fluids; their durability has earned them widespread use across a range of industrial applications, from refining gas lines to residential plumbing systems and misting systems.
Compression fittings are relatively straightforward in their design and construction. A compression fitting consists of an angled body that radially compresses ferrule ends against tubing to form an airtight seal; this process gives rise to its name. To create such a fitting, tightening nut/screws seating the ferrules against tubing is followed by drawing to apply pressure evenly and consistently across their surface area; otherwise, they could deform and create leak paths between the ferrule and tube.
Stainless steel compression fittings are an ideal choice for demanding applications like chemical, pharmaceutical, and medical environments. Their all-metal construction allows them to withstand harsh conditions like exposure to chemicals and extreme temperature variations without becoming toxic fume emitters – ideal for applications where fluid or gases must remain clean and free from contamination compared to tubing and plastic, which generate toxins under pressure.
These durable and flexible fittings can be found on copper, brass, stainless steel nylon tubing, and even nylon if working with low-pressure applications. Their applications range from waterline connections, air pneumatic lines, and vacuum lines – to industrial greenhouse misting systems, cooling misting systems, and high-pressure mist applications; oil rig logging operations as they’re capable of withstanding harsh offshore environments – as well as connecting instrumentation tubes to gauges or valves on bulkheads.
Copper
Compression fittings provide removable plumbing connections on standard copper pipe and tubing without soldering, eliminating the need to reach all areas with soldered connections. Installation is quick and straightforward – just ensure the pipe ends are cut squarely before tightening down the nut evenly!
Compression fittings comprise three main parts: nut, seat section, and compression ring or ferrule. To create a watertight seal around a pipe end, the nut must be tightened onto its threaded connection on the seat section until compressing its compression ring against it – either manually or with the help of a wrench – without overtightening as this could strip its threads and lead to leaks in its seal.
Copper compression fittings come in many sizes. Smaller ones utilize one nut to compress the ferrule, while larger sizes use a flange with bolts instead. Plumber’s grease or light oil may help lubricate threads of nuts; however, compression of ferrule against pipe ends creates a seal.
Copper compression fittings do not last as long as soldered connections do. Their nuts can loosen, leading to leakage or the ferrule deforming and losing its ability to bite into pipe ends – in either instance, requiring replacement by either you or an outside provider.
Stainless steel compression fittings are engineered to handle higher pressures and vacuums than their brass counterparts, making them suitable for hydraulic industrial systems with copper tubing as well as PVC tubing, as well as plumbing systems with restricted spaces where soldering would be impossible, as well as connecting threaded components such as valves. They make an ideal addition to high-pressure applications like hydraulic industrial systems as they can work with both materials simultaneously. They’re a perfect choice when dealing with vacuum pressure as well as in high-pressure applications like hydraulic industrial systems, which use copper tubing, while PVC tubing can also be used interchangeably between copper and PVC tubing types, making them the superior choice in high-pressure applications like hydraulic industrial systems or plumbing systems that use pressure.
Stainless steel compression couplings require no solvent for installation, unlike copper fittings. Instead, these couplings feature a nut that grips pipe ends to secure them into place and a fixed cone sealed onto tubing that prevents fluids from reaching either threaded or tapered ends of the fittings.
Plastic
Compression fittings are a type of coupling that works by compressing the ferrule against a nut and tightening it, creating a watertight seal between tubing and sleeves when drawn by tightening down on the nut. They’re commonly found in plumbing systems located within tight spaces, or they could become fire hazards should pipes be exposed to flame. They’re also widely utilized by hydraulic industry applications to connect tubing to threaded components like valves.
Compression fittings provide the most robust leak-proof connections when used to join plastic pipes, especially when vibration or thermal expansion and contraction can cause other fitting connections to loosen or even leak. This is especially valuable in situations when different appropriate types can become loose during vibration and thermal changes that cause other connections to relax and even leak over time.
Plastic compression fittings typically consist of an insert, compression nut, and plastic ferrule. The insert is generally constructed of either metal or hard plastic; once over the end of the tubing, it should be pushed in place and tightened down onto it by hand to create an airtight seal against both tubing and nut. Once tightened up against these components, the sleeve compresses against tubing and nut to form an airtight seal, thus sealing leaky waterways or creating leak-tight seals against leaks between these components that help plug leakages in pipes or enclosures for installations of tubing systems.
Once the sleeve and nut are installed correctly, a little plumber’s grease or oil can help ensure an even tightening. Lubrication also protects against damaging ferrules from excessive tightening of the nut. While not necessary in all applications, adding this step may make installation quicker and more reliable.
Tightening a compression fitting requires turning its nut clockwise until it is tight enough that its connection points with tubing and sleeves are fully sealed against it. Over-tightening is one of the primary causes of leaks with these types of fittings; to prevent over-tightening from occurring, it is recommended to tighten the nut by hand until it becomes too tight to continue and then turn it half turn more with a wrench, depending on its size this amount may differ slightly; should weeping at connection points ensues, then tighten marginally more and test until weeping ceases before proceeding further with further drawing steps until weeping ceases and testing again until weeping ceases entirely before proceeding further pulling and trying again until weeping ceases altogether.
