How to Choose AC pipe joint?

Pipe fittings are a perfect solution for providing connections for pipelines. Additionally, they can modify pipeline systems by extending the run or altering the pipe flow direction. Various pipe fittings exist for different applications and industries, including water supply, pharmaceuticals, power generation, petrochemicals, pulp & paper, and others. Pipe fittings for water supply come in multiple materials, types, shapes, and sizes. Hawle offers a wide range of mechanical pipe fittings for the most common types of pipes used in the water supply. Prior to selecting the ideal pipe fitting for your application, you should base your decision on certain criteria to assure its compatibility.

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Flanged pipe fittings are a prevalent type of pipe fittings. They connect piping system equipment such as pipes, valves, and pumps by being screwed together. When two flanges are bolted together, and a gasket forms a seal between them, the result is a flanged junction.

The selection of the type of flanged fitting depends on the system and application, where temperature and pressure are important factors. Flanged pipe fittings are often employed in water supply networks and are compatible with most common pipe types. They are simple to use, universal, and great for rigid pipelines, given they fit in tight spaces. Moreover, their maintenance is simple as it is easy to disconnect and reconnect them. However, note that flanged pipe fittings require bolts and are prone to leakage. Hawle offers a vast range of flanged pipe fittings to fit your need.

System connections are unique mechanical pipe fittings designed to attach water pipes made of plastic, such as HDPE/PE/PEX and OPVC/PVC.

There are still many pipes older than a century in several European cities that need to be replaced because of significant leakage rates. When these pipes fail, they are frequently replaced by PE and PVC pipes, as they offer lower failure rates than other materials. To meet this need, Hawle offers System pipe connections that are perfect for plastic pipes. System pipe connections are attached to the pipes using a brass grip ring with teeth elements, providing a restraint connection for plastic pipes.

Compared to other pipe laying technologies like PE-welding, for the System installation, no special tools or machinery or specially trained personnel are needed. Cold, rainy weather or groundwater in the pit also do not affect the fast and safe System assembly. In addition to that, Hawle has a certificate from an external independent institution ”100 Years Expected Lifetime”.

Among other valve manufacturers of comparable mechanical connections for PE pipes, Hawle offers one of the broadest product pallets with System : Pipe connections, bends, couplings, end caps, combi- and gate valves, suited for all types of installations are all part of the Hawle System offering. System diameters might be as little as d63 or as large as d630, depending on the product.

Most old water pipelines are built using cast iron, concrete, or asbestos cement. Retrofitting these old pipes with lighter and more flexible plastic components is common. However, properly connecting more recent plastic pipes to older concrete and metal ones might be difficult due to size and coupling incompatibilities. Synoflex range facilities this operation easily thanks to its high tolerance and multirange restraint couplings which were exclusively designed to join incompatible pipes. Hawle Synoflex multirange restraint joints can join a wide range of unique pipe combinations, such as:

• Grey cast iron pipe to PVC pipe or HDPE pipe
• Ductile cast iron pipe to PVC pipe or HDPE pipe
• Steel pipe to PVC pipe or HDPE pipe
• AC pipe to PVC pipe or HDPE pipe

Hawle Synoflex multirange restraint joints also enable metal – metal or plastic – plastic combinations. Some of the advantages of Synoflex connections include:

• Long connection lifetime
• Fast, safe, and simple repair solution
• Lower stocking costs thanks to a "one size fits all" approach
• Durable and corrosion resistant
• Applicable for nearly all pipe materials
• Reusable
• Suitable for both above-ground and underground installations.

Synoflex provides various pipe connections to meet a vast range of needs. These include the Synoflex  couplings, Synfolex flange adapter, Syno connector, and SynoZAK  adapters. However, it is worth noting that Synoflex is only available up to DN 400.

Hawle has a broad palette of pipe fittings for house connections up to 2", offering a versatile range of fittings to suit your needs. These include non-threaded pipe fittings, including push-fit fittings, Hawle ZAK connections and and conventional threaded pipe fittings. Pipe push fittings are becoming increasingly popular compared to conventional fittings as they are much faster to install without needing specialized equipment, saving time and money.

Hawle ISO pipe fittings made of ductile iron (with an epoxy powder coating) or  polyoxymethylene (POM) are suitable for PE pipes according to EN -2 and DIN , up to PN 16. The Hawle ISO pipe fitting is the ideal push connection for PE pipes that have been tried and tested for decades. The joint is flexible, making the installation of the fitting quick and straightforward. Similar to the Hawle-FIT series, ISO fittings are available in various types: with external and internal thread, connector, elbow 45°- 90°, T-piece, end stop, wall inlet fitting, etc. By using the new 2-K gripring the ISO fittings can be used for PVC pipes acc. to EN ISO -2.

ZAK connections are threadless, restraint-joining systems for service connections. The bayonet-style connection of the ZAK-system is simple and fast, meaning service line connections can be made or removed in seconds. The ZAK-system saves time and does not require separate sealing products to make 100% leak-proof connections. Made from high-quality castings in Europe, ZAK-system fittings are made of GJS-400-15 ductile iron and coated inside and out with a durable epoxy powder coating.

To ensure its safety for distribution, fittings used in the water supply must meet the standards set by European Authorities. These include the drinking water certification, for example, from the Austrian and German Associations for Gas and Water (ÖVGW and DVGW, respectively. Protecting human health and the environment is a top priority at Hawle. Most fittings on the Hawle portfolio are designed for municipal water supply. This means that parts in contact with drinking water are certified and lead-free to ensure their safety for human health and the environment.

T-fittings, or pipe tee fittings are fittings that are used to connect two or more pipes. These fittings, characterized by their T-shaped form, attach the two pipes at a 90-degree angle. Among all pipe fittings and connectors, the T-fitting is one of the most adaptable and is frequently used in domestic, industrial, and commercial settings. Hawle offers various T-fittings made of different materials, also available in the Hawle-FIT and ISO-fittings series.

Similarly, a cross fitting is a pipe fitting with four openings in four directions used to connect four pipes. The pipe cross may have one inlet and three outlets or vice versa. In addition, the inlet and outlet diameters may be the same or different.

In water systems involving the underground piping of water to domestic or to industrial areas, there is the need to bring a water supply to the surface at various strategic locations. Duck foot bends are often employed to connect fire hydrants away from or at the end of a pipeline. A duck foot bend fitting consists of two ends, where one end is vertical and the other is curved. In a fire hydrant application, the vertical end is connected to the bottom of the hydrant while the other end is often connected to a pipeline at a recommended depth below the ground.

Contact us to discuss your requirements of AC pipe joint. Our experienced sales team can help you identify the options that best suit your needs.

April 29,

Using the wrong fittings in home plumbing can cause big problems like water leaks, higher bills, and damage. Thus, it’s vital to use the correct fittings to keep your plumbing system efficient and dependable.

The right copper pipe fittings ensure an efficient, leak-free plumbing system. There are various types of copper pipe fittings, including compression, end feed, solder ring, push fit, and press fittings.

Each type offers distinct advantages: compression fittings for easy adjustment, end feed for a strong bond, solder ring for convenient installation, push fit for quick setup, and press fittings for durability. 

In this guide, we’ll provide comprehensive insights into these fittings and offer practical tips on selecting the right fittings for your plumbing projects.

Contact R.S. Andrews at (470) 264- in Atlanta, Georgia to learn about our copper pipe fittings services. We’re here to help you select and install the best fittings for your system.

Types of Copper Pipe Fittings

Copper pipe fittings are essential components in residential and commercial plumbing systems. They enable the connection of pipes and help direct water flow. 

Each type of fitting serves a specific function and is selected based on the needs of the plumbing project. 

Here are the main types you’ll encounter:

• Compression Fittings: These fittings use a nut and ferrule (a ring or cap) to compress and seal the pipe within the fitting. 
• End Feed Fittings: Also known as capillary fittings, these require the pipe to be inserted into the fitting to a specific depth before it is soldered. 
• Solder Ring Fittings: These come with a pre-applied solder inside the fitting. When heated, the solder melts to form a seal around the joint. 
• Copper Push Fit Fittings: These fittings allow for quick and easy installation, as they only require the pipe to be pushed into the fitting for a watertight connection. 
• Copper Press Fittings: These fittings are used in both residential and commercial applications. A special tool presses them onto the pipe to create a watertight and permanent connection. 

Compression Fittings

Compression fittings are widely used in plumbing systems, particularly when a permanent connection is not necessary or where welding and soldering are impractical. 

Pros

• Ease of Installation: Compression fittings can be installed with basic plumbing tools, which is ideal for quick repairs or installations in areas where using a torch for soldering is difficult or unsafe.
• Adjustability: These fittings can be easily adjusted, disassembled, and reused, providing significant flexibility during installation and maintenance.
• No Heat Required: Since compression fittings do not require soldering, there is no need for a heat source. This makes them a safer choice in environments where open flames are a risk.
• Immediate Use: Connections made with compression fittings are ready for immediate use after installation, eliminating the wait time required for soldered joints to cool and set.

Cons

• Less Durability: Compression fittings may not provide the same level of durability and leak resistance as permanently soldered or welded connections. This is especially true in systems that experience high pressure or dynamic conditions.
• Risk of Over-Tightening: It is easy to over-tighten compression fittings, which can lead to crushed or warped pipes and potential leaks. Proper installation requires careful attention to torque.
• Higher Cost: Compression fittings are generally more expensive than soldered options due to the engineering and higher-quality materials required.

End Feed Fittings

End feed fittings are a common choice in plumbing for creating strong, permanent connections between copper pipes. These fittings require the pipe inserted into the fitting up to a certain depth before soldering to ensure a secure bond. 

Pros

• Cost-Effective: End feed fittings are generally less expensive than other types of copper fittings, such as push fit or press fit. This makes them a budget-friendly option for many projects.
• Strong Connection: Once soldered, the connection is very strong and permanent, providing a reliable seal that is less likely to leak compared to non-soldered fittings.
• No Internal Obstructions: Since the solder is drawn into the joint from the outside, there are no internal components that could restrict the flow of water through the pipe.

Cons

• Requires Skill: Properly soldering end feed fittings requires some skill and experience with a torch. Incorrect soldering can lead to weak joints or leaks.
• Time-Consuming: Compared to quicker methods like push-fit or press-fit, soldering takes more time and preparation, as it involves cleaning, applying flux, heating, and applying solder.
• Risk of Heat Damage: The high heat involved in using a torch can damage surrounding materials or components, making it less ideal in tight or sensitive spaces.

Solder Ring Fittings

Solder ring fittings are convenient for connecting copper pipes in plumbing systems. These fittings come with a solder ring already inside the fitting, which melts and forms a seal when heated. 

Pros

• Ease of Use: Solder ring fittings simplify the soldering process by eliminating the need for manual application of solder. This can be particularly beneficial for beginners or when selling solder is difficult.
• Consistent Quality: Because the solder is pre-measured and precisely placed within the fitting, it helps ensure a consistent, reliable joint every time, reducing the risk of leaks due to insufficient or excessive soldering.
• Speed of Installation: These fittings can save time on the job by reducing the steps involved in preparing and completing a joint. This can lead to faster completion of plumbing projects, especially when multiple connections are required.
• Reduced Equipment Needs: Since the solder is already in the fitting, there’s no need to carry additional solder, which minimizes the tools and supplies that need to be managed on-site.

Cons

• Higher Cost: Solder ring fittings are generally more expensive than standard end feed fittings because they use pre-added solder and require a more complex manufacturing process.
• Limited Adjustability: Once heated and cooled, the joint is permanent, which means any adjustments or repositioning must be done before the solder sets. This can be a disadvantage if the fitting needs to be realigned or if mistakes are made during installation.
• Risk of Overheating: Achieving the correct temperature is crucial; too much heat can cause the solder to flow out before forming a proper seal, while insufficient heat may not melt the solder enough to fill the joint completely.
• Skill Requirement: While easier than traditional soldering, using solder ring fittings still requires some skill with a torch. Improper heating can lead to weak joints or potential damage to the pipe and fitting.

Copper Push Fit Fittings

Copper push fit fittings offer a quick and efficient method for connecting copper pipes without the need for soldering or special tools. These fittings are designed with a ring of stainless steel teeth that grip the pipe securely and an O-ring that creates a tight seal. 

Pros

• Easy Installation: Push fit fittings can be installed quickly and easily by simply pushing the pipe into the fitting until it locks in place. This simplicity makes them ideal for DIY projects and quick repairs.
• No Heat Required: Unlike soldered fittings, push fit fittings do not require a torch or heat source, eliminating the risks associated with open flames and high temperatures. This feature also allows for safer installations in tight or flammable environments.
• Removability and Reusability: Many push fit fittings are designed to be removable and reusable, making them convenient for temporary setups or for adjusting plumbing layouts.
• Immediate Pressure Testing: Connections made with push fit fittings can be pressure tested immediately after installation, which is beneficial in both new construction and repair scenarios to ensure leak-free results.

Cons

• Cost: Push fit fittings are generally more expensive than their traditional counterparts due to the technology and materials used in their design.
• Longevity and Reliability: While push fit fittings are secure, they may not provide the same level of long-term reliability as soldered connections, especially in systems subject to high temperatures or vibrations.
• Compatibility Issues: Push fit fittings must be used with pipes that precisely match their size and type specifications. Improper matching can lead to leaks and reduced effectiveness of the fitting.
• Aesthetic Considerations: In visible areas, push fit fittings may not offer the same clean, streamlined appearance as soldered fittings, which can be a consideration in some decorative or exposed plumbing applications.

Copper Press Fittings

Copper press fittings are a modern method for connecting copper pipes. A special pressing tool crimps the fitting around the pipe, creating a watertight and permanent bond. 

Pros

• Speed of Installation: One of the biggest advantages of copper press fittings is the rapid installation time. The pressing tool quickly and efficiently secures the fitting to the pipe, significantly reducing labor time compared to traditional soldering methods.
• No Flame Required: Since no soldering or heating is involved, there is no need for a torch or fire hazard precautions. This makes press fittings a safer choice, particularly in environments where open flames are risky, such as occupied buildings or areas with flammable materials.
• Reliability and Leak Resistance: Press fittings are designed to provide a consistent and reliable seal. Compared to soldering, the mechanical connection is less prone to human error, leading to fewer leaks and callbacks.
• Clean and Neat Installation: With no soldering required, there’s no risk of burning surrounding materials or leaving behind solder drips or flux residue. The end result is a clean and professional-looking installation.

Cons

• Initial Investment in Tools: The biggest barrier to adopting press fitting technology is the upfront cost of the pressing tool, which can be significant. However, this cost may be offset by the savings in time and increased productivity over time.
• Skill and Training Required: While the technique itself is straightforward, proper training is required to ensure that the pressing tool is used correctly. Incorrect use can lead to improper seals and potential failures.
• Limited Adjustability: Once a press fitting is crimped, it cannot be adjusted or reused. If a mistake is made during installation, the fitting and potentially the pipe section must be cut out and replaced.
• Availability and Cost of Fittings: Press fittings can be more expensive than traditional fittings and may not be as readily available in all sizes and types, which could limit their use in certain applications.

Selecting the Right Fittings

Choosing the right fittings for your copper pipe installation ensures a durable, efficient, and leak-free plumbing system. 

Here are key factors to consider when selecting the right fittings for your project:

Pipe Size and Type

• Ensure that the fittings match the size and type of the copper pipes you use. Incorrectly sized fittings can lead to poor connections and potential leaks.

Application Requirements

• Consider the specific requirements of your installation. If the plumbing will be exposed to high temperatures or pressures, choose fittings designed to withstand those conditions.
• Evaluate whether the fittings need to be removable or adjustable. Some types, like push fit or compression, offer these features, while others, like press or solder ring fittings, do not.

Environmental Conditions

• If the installation is in an area where corrosion is a risk (such as near the coast or in industrial environments), select fittings that are additional corrosion resistant.
• For areas with limited space or where flame safety is a concern (like in retrofit applications inside existing walls), consider using press fittings or push-fit options that do not require a torch for installation.

Longevity and Durability

• Choose fittings that are known for long-term durability and reliability. Read reviews and product specifications to understand the lifespan and warranty of the fittings.
• Consider the reputation of the manufacturer and select brands that are known for quality and reliability.

Installation Expertise

• Assess the level of skill required for installing the fittings. Solder and press fittings typically require specialized tools and skills, whereas compression and push fit fittings can be easier for DIYers.
• If you’re not confident in your ability to install certain types of fittings, it may be worth hiring a professional.

Budget

• Factor in the cost of the fittings into the overall plumbing project budget. While it may be tempting to go for the cheapest option, investing in higher-quality fittings can reduce the risk of future problems. This can then save money in the long run on repairs and maintenance.

Professional Installation Services

• Professional installation ensures that your plumbing is done right the first time, minimizing the risk of leaks and other issues associated with improper fitting placement. Professionals like us at R.S. Andrews have the tools, expertise, and experience to handle any type of copper fitting and plumbing situation.

Call R.S. Andrews at (470) 264- for expert copper pipe fittings services in Atlanta, Georgia. Whether you need assistance selecting the right fittings or require professional installation, our team is ready to provide you with comprehensive service and ensure your plumbing system is set up for success. 

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