12 best compression fitting nuts
Compression fitting nuts are crucial components used in plumbing and piping systems to create watertight connections without the need for soldering or welding.These nuts are part of compression fittings, which are commonly used in both residential and commercial plumbing applications. Here's what you need to know about compression fitting nuts:
Purpose: Compression fitting nuts are used to secure and seal pipes or tubing together in a way that prevents leaks. They are particularly useful in situations where a watertight connection is required, such as for water supply lines, gas lines, or refrigeration systems.
Components: A typical compression fitting consists of several components, including the compression fitting nut, a compression ring (also called a ferrule or olive), and the fitting body or valve. The compression fitting nut plays a critical role in creating a tight seal.
Materials: Compression fitting nuts are typically made of brass, stainless steel, or other durable materials. Brass is a common choice due to its corrosion resistance and strength.
Working Principle: Compression fittings work by compressing the ferrule (a small, ring-shaped component) onto the pipe or tubing when the nut is tightened. This compression action creates a seal between the pipe and the fitting body, preventing the escape of fluids or gases.
Types of Compression Fittings: There are various types of compression fittings, each designed for specific purposes, including:
- Compression Couplings: Join two pipes or tubing pieces.
- Compression Elbows: Used for changes in direction.
- Compression Tees: Create a T-shaped connection.
- Compression Valves: Combine a valve with a compression fitting for control over the flow of fluids.
Installation:
- Cut the pipe or tubing to the desired length.
- Slide the compression nut and ferrule onto the pipe.
- Insert the pipe into the compression fitting body or valve.
- Hand-tighten the compression nut onto the fitting body.
- Use a wrench to make a final quarter-turn to ensure a snug fit without overtightening, which can damage the ferrule or pipe.
Advantages:
- Compression fittings provide a secure and reliable connection without the need for soldering or welding.
- They can be disassembled and reused if needed.
- Compression fittings are suitable for a range of materials, including copper, plastic, and stainless steel pipes or tubing.
Applications:
- Plumbing systems: Compression fittings are commonly used for water supply lines, both in homes and commercial buildings.
- Gas lines: They are used to connect gas pipes securely.
- Refrigeration systems: Compression fittings are employed in refrigeration lines to ensure leak-free connections.
Maintenance: Periodic inspection of compression fittings is important to detect any signs of wear, corrosion, or leakage. Damaged fittings should be replaced promptly to prevent leaks and ensure the integrity of the plumbing system.
Compression fitting nuts are essential components in plumbing systems, offering a reliable and versatile solution for joining pipes and tubing in a leak-resistant manner. Proper installation and maintenance are key to ensuring their effectiveness and preventing potential issues.
Below you can find our editor's choice of the best compression fitting nuts on the market
Litorange 6 PCS Heavy Duty Metals Brass Tube Fitting, Short SAE Flare Nut, 1/2" Tube OD (Pack of 6)
Litorange
Product description
★ Material:
Heavy Duty Brass,strong and durable.
Operating temperatures range from -53 to 121 degrees C (-65 to 250 degrees F).
★ Specification:
1. Size: 1/2" Flare Nut.
2. Easy to disassemble no flaring tool required.
3. This fitting is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.
4. This short flare nut connects to a flared tube or fitting, and is suitable for use with fuel and gas systems.
5. It is part of an assembly that resists mechanical pullout for a more secure connection, and can be assembled and reassembled without affecting the seal.
6. This short flare nut compression tube fitting is suitable for use with fuel and gas systems, plumbing, refrigeration, and vacuum applications.
7. When purchasing fittings, consider the application, as this will affect material type, shape, size, and required durability.
★ Package includes:
6 x 1/2" Flare Nut.
- ★ 【Material】: Heavy Duty Brass,strong and durable. Short flare nut for connecting to a 1/2" OD tube or fitting.(OD: Outer Diameter).
- ★ 【Firm And Durable】: Litorange Brass for corrosion resistance, high temperature ductility and low magnetic permeability.
- ★ 【Function】: Resists mechanical pullout for a more secure connection.
- ★ 【Tips】: For low to medium pressure operating environments with no excessive vibration or tube movement. Use with copper, brass, aluminum, or plastic tubing
- ★ 【Package Include】: 6 PCS 1/2" Flare Nut, Net Weight: 42g/PCS. Comes with 1 year guarantee.
User questions & answers
| Question: | flare 90 degree l do u have them in stock |
| Answer: | If the lead is in the paint then yes, if the coating is very hard for example a baked enamel coating, just swabbing the surface would not likely detect the lead. Destroying some of the coating would allow for more accurate test results, we always recommend contacting a lead abatement specialist in cases where the correct move is not clear! |
LTWFITTING Value Pack 1/4-Inch OD Brass Compression Insert,Sleeve Ferrule,Nut (Pack of 125)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression fitting. Commonly used to connect lines for air, water, fuel, oil and inert gases in a quick and simple way.
Click "honest-fly" to choose the product you want in our shop.
Features
- Package Include: 50pcs sleeve ferrules, 25pcs nuts, 50pcs inserts.
- Material: Brass.
- Tube Size:1/4" OD.
- Net Weight: 5.8g/PC(nut), 0.8g/PC(sleeve ferrule), 0.8g/PC(insert).
- Type: Compression insert, sleeve ferrule and nut.
Important Note
Pay attention to the column of size and color, you could find a variety of product types and quantities for your choice.
The more you purchase the better price you get.
About Shipping
Great stock availability and fast dispatch are our core of business. We would make effort to process each order within 24 hours.
We are international seller, each item is required to be checked by two customs. China Post Air Mail and DHL eCommerce are our main carriers, it normally takes about 3-4 weeks to deliver to US.
If you do not receive the item during this period or have any problems, kindly contact us firstly.
You can rest assured we would handle each order no matter big or small as fast as we can.
About Us
We are honest seller, any problems please contact us before leaving your feedback. We will try our best to work out the issue with you.
These products come from our joint factory, its annual output is about 100,000,000 pcs. It is one of the main copperware makers in China with a 25 years’ experience in producing copperware and has already passed ISO 9001 quality guarantee system attestation, to ensure the long-term and stable quality of products .
- Package Include: 50pcs sleeve ferrules, 25pcs nuts, 50pcs inserts.
- Material: Brass.
- Tube Size:1/4" OD.
- Net Weight: 5.8g/PC(nut), 0.8g/PC(sleeve ferrule), 0.8g/PC(insert).
- Type: Compression insert, sleeve ferrule and nut.
User questions & answers
| Question: | Do you have these in |
| Answer: | Hello, Thanks for you interest our product. We not have 5/32 this size? Thanks! Robert |
| Question: | what is the thread count |
| Answer: | Not sure |
| Question: | are these lead free and usable with water lines |
| Answer: | I'm pretty sure that they are. |
| Question: | How long are the inserts |
| Answer: | it's about 0.5 inch. |
LTWFITTING 1/8-Inch Brass Compression Sleeves Ferrule with 1/8-Inch Compression Nut, Brass Compression Fitting(Pack of 75)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression sleeves ferrule and nut. Commonly used to connect lines for air, water, fuel, oil and inert gases in a quick and simple way.
Click "honest-fly" to choose the product you want in our shop.
Features
- Package Include: 50pcs sleeves ferrule, 25pcs compression nut.
- Material: brass.
- Tube Size:1/8" OD.
- Net Weight: 0.4g/PC(sleeves ferrule), 3.6g/PC(nut).
- Type: Compression sleeves ferrule and nut.
Important Note
Pay attention to the column of size and color, you could find a variety of product types and quantities for your choice.
The more you purchase the better price you get.
About Shipping
Great stock availability and fast dispatch are our core of business. We would make effort to process each order within 24 hours.
We are international seller, each item is required to be checked by two customs. China Post Air Mail and DHL eCommerce are our main carriers, it normally takes about 2-3 weeks to deliver to USA.
If you do not receive the item during this period or have any problems, kindly contact us firstly.
You can rest assured we would handle each order no matter big or small as fast as we can.
About Us
We are honest seller, any problems please contact us before leaving your feedback. We will try our best to work out the issue with you.
These products come from our joint factory, its annual output is about 100,000,000 pcs. It is one of the main copperware makers in China with a 25 years’ experience in producing copperware and has already passed ISO 9001 quality guarantee system attestation, to ensure the long-term and stable quality of products .
- Package Include: 50pcs sleeves ferrule, 25pcs compression nut.
- Material: brass.
- Tube Size:1/8" OD.
- Net Weight: 0.4g/PC(sleeves ferrule), 3.6g/PC(nut).
- Type: Compression sleeves ferrule and nut.
User questions & answers
| Question: | I assume this can be used in other type of tubing besides copper tubing |
| Answer: | I wish I could answer this, but it has been many years since I bought the line. I have since sold my boat and retired. I do wish I was in the position answer this. I would go to a mono line company website and try to find the answer. |
| Question: | Do you have a kit that has these 2 plus the little tubes that go in the end to form a seal |
| Answer: | Not at this time, the epa new laws make it very difficult to pass the new regulations. As a matter of fact no tests actually meet the regulations, all older tests which had been certified under old more lax regulations were grandfathered in. Essentially setting the bar higher for new tests. I hope this answers your question! |
LTWFITTING1/4-Inch Brass Compression Nut,Brass Compression Fitting(Pack of 25)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression nut. Commonly used to connect lines for air, water, fuel, oil and inert gases in a quick and simple way.
Click "honest-f" to choose the product you want in our shop.
Features
- Package Include:25 pcs.
- Materies: brass.
- Net Weight: 5.8g/pc.
- Type: Compression Nut.
- Tube Size:1/4" OD.
Important Note
Pay attention to the column of size and color, you could find a variety of product types and quantities for your choice.
The more your purchase the best price you get.
About Shipping
Great stock availability and fast dispatch are our core business. We would make effort to process each order within 24 hours.
We are international seller, each item is required to be checked by two customs. China Post Air Mail and epacket are our main carriers,it normally takes about 1-2 weeks to deliver to US.
If you do not receive the item during this period or have any problems, kindly contact us firstly.
You can rest assured we would handle each order no matter big or small as faster as we can.
About Us
We are honest seller, any problems please contact us before leaving your feedback. We will try our best to work out the issue with you.
These products come from our joint factory, its annual output is about 100,000,000 pcs. It is one of the main copperware maker in China with a 25 years¡¯ experience in producing copperware and has already passed ISO 9001 quality guarantee system attestation, to ensure the long-term and stable quality of products .
- Type: Compression Nut
- Tube Size:1/4" OD
- Materies: BRASS
- Net Weight: 5.8g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
User questions & answers
| Question: | Can these be used with poly tube |
| Answer: | .075 |
Legines Brass Compression Tube Fitting, Union, 1/4" OD x 1/4" OD, Pack of 2
- Three piece construction - nut, sleeve and body with attached insert Use with copper, brass, aluminum, or plastic tubing
- Manufactured for low and medium pressure tubing connection work where excessive vibration or tube movement is not involved.
- Use with copper,aluminum and thermoplastic tub-ing.Not recommended for steel tubing.
- Not recommended for application using gas eous media.
- Meets specifications and standards of ASA, ASME asn SAE.
User questions & answers
| Question: | Is this 3/8 comp x 3/8 comp union the correct size to connect to the female 3/8 comp of a standard faucet supply line |
| Answer: | most 100lb test is .039 inch or 1mm. you would use a double sleeve with a 1mm max line diameter not 1mm sleeve id. I do not know about single sleeve I only use double sleeve. |
| Question: | Is the female a compression fit |
| Answer: | 180 |
Product features
Legines Brass Compression
- Three piece construction - nut, sleeve and body with attached insert Use with copper, brass, aluminum, or plastic tubing.
- Manufactured for low and medium pressure tubing connection work where excessive vibration or tube movement is not involved.
- Typical application: Use with copper, aluminum and plastic tubing.Not recommended for steel tubing and using gas eous media.
- Working pressure up to 2000psi with a 4:1safety factor depending on TUBE size.Temperature range of -65°F to 250°F (-53°C to 121°C).
Compression Union
The sleeve type pipe joint is composed of three parts: joint body, sleeve, nut. When the ferrule and the nut are inserted into the joint body on the steel pipe, when the nut is tightened, the outer side of the front end of the ferrule is fit with the conical surface of the joint body, and the inner edge bites into the seamless steel pipe evenly.
Solid Brass&Strong Structure
This union is made of forged Brass with ductility at high temperatures, low magnetic permeability, and is composed of three parts which can combine a strong connection.
Heavy duty and Clean threads
This is a heavy brass connector that does what it's supposed to do. Threads are cut correctly. The NPT threads create a tighter seal than straight threads.
Simple installation
Its installation is simple, high pressure, and therefore can be widely used.
LASCO 19-5203 Compression Fitting with Integral Sleeve Nut and 1/4-Inch OD, Nylon, White/Clear
LASCO
Product description
Product DescriptionLASCO 19-5203 Compression Fitting with Integral Sleeve Nut, 1/4-Inch Od, Nylon. Nylon compression fitting with integral sleeve nut. Use for hot or cold water. 1/4-inch od nut with integral sleeve. No need to disassemble fitting - just loosen the nut, insert tubing, then tighten. Use on copper, PEX, poly and aluminum tubing.
From the Manufacturer
LASCO 19-5203 Compression Fitting with Integral Sleeve Nut, 1/4-Inch Od, Nylon. Nylon compression fitting with integral sleeve nut. Use for hot or cold water. 1/4-inch od nut with integral sleeve. No need to disassemble fitting - just loosen the nut, insert tubing, then tighten. Use on copper, PEX, poly and aluminum tubing. LASCO, Lasco Supply Company Inc, The Preferred Brand! Service, Selection, and Support! Larsen Supply Company is 3rd Generation, Family owned and operated for over 80 years. LASCO packaging includes helpful how to instructions and related project item information. LASCO has the largest retail plumbing line in the industry today with over 7000 packaged and 16,000 bulk SKU's. Visit our online web site catalog for one of the most complete product listing in the industry.
- Nylon compression fitting with integral sleeve nut
- Use for hot or cold water
- 1/4-inch od nut with integral sleeve
- No need to disassemble fitting - just loosen the nut, insert tubing, then tighten
- Use on copper, PEX, poly and aluminum tubing
User questions & answers
| Question: | What is the inside diameter of the female threads on this nut? I need to match with a male fitting having 3/4" OD, 16 pitch threads |
| Answer: | Sorry,we don't have yet.Maybe we will manufacture this product in the future.Looking forward to your purchase. |
Anderson Metals-50062-12 Brass Tube Fitting, Union, 3/4" x 3/4" Compression
Anderson Metals
Product description
- Union for connecting and disconnecting two tubes more easily than with a coupling
- Compression tube connections on both ends
- Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
- Operating temperature range of -65 to +250 degrees F
- Three piece construction - nut, sleeve and body
- These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
User questions & answers
| Question: | Does it fit for 5/8" OD copper pipe |
| Answer: | The 2 ferrules that come with the fitting slide over the 2 tubing sections you are connecting together so yes it is a female compression fitting. |
| Question: | for a 5mm tube, would I be able to use the 3/16" compression fitting or should I use the 1/4" compression fitting |
| Answer: | no |
| Question: | Will the fitting wor on type l copper |
| Answer: | Copper, aluminum, plastic and steel. Not as good on steel. |
| Question: | do these have the dot approved stamp on them |
| Answer: | Yes |
One Stop Outdoor (5-Pack) 1/2" Universal Nut-Lock Coupling Drip Irrigation Tubing Compression Fitting Connector (Fits All Tubing 620.700.710 OD) (Coupling 5-Pack)
Product description
Universal Nut Lock Drip Fittings are used to connect drip tubing and drip line with dimensions from 1/2” to 5/8” or .620 OD to .710 OD. They can be used to connect two different sizes of drip tubing, providing a simple solution when there is no clear information about the drip tubing or drip line size used. Used by both home gardeners and professionals, the Universal Nut Lock Drip Fittings are made of high-impact plastic for the connection of various sized drip irrigation tubing and drip line. Using a double barb, two pieces of drip line or drip tubing can be connected by inserting the fitting nuts over the drip tubing or drip line, then pushing the drip tubing or drip line over the barbed sides of the fitting, and finally threading the nuts over the drip tubing or drip line for a very tight grip. Features Three-part construction including a threaded nut, barb assembly and housing with male thread Threaded nut for easy assembly Available in four different configurations including coupling, tee, elbow and swivel tee Resistant to common fertilizers used in residential and commercial applications Made of high-impact, high-strength, UV-resistant plastic for extended operation in harsh conditions Fits .620 OD, .700 OD and .710 OD drip tubing, and drip line (16 mm and 17 mm) Product specifications Operating pressure: up to 60 PSI Color: brown/black Use with 1/2” to 5/8” drip tubing or drip line Material: Body and nut: polypropylene Barb: PBT
- UNIVERSAL : Fits .620 OD, .700 OD and .710 OD drip tubing, and drip line (16 mm and 17 mm)!
- Operating pressure: up to 60 PSI
- Use with 1/2” to 5/8” drip tubing or drip line!
- Made of high-impact, high-strength, UV-resistant plastic for extended operation in harsh conditions
- Threaded nut for easy assembly
User questions & answers
| Question: | What kind of high-impact plastic? are these bpa free, safe for organic planting irrigation |
| Answer: | Yes |
Anderson Metals - 50068-0404 Brass Tube Fitting, Connector, 1/4" Compression x 1/4" Male Pipe
Anderson Metals
Product description
Three piece construction - nut, sleeve and body with attached insert. Use with copper, brass, aluminum, or plastic tubing. -65 Degree F to +250 degree F temperature range. Standard fittings use short nuts. Easy to disassemble no flaring tool required. Primary uses water, gasoline, oil and vacuum lines. 7/16"-24 Thread size.
- Three piece construction - nut, sleeve and body with attached insert
- Use with copper, brass, aluminium, or plastic tubing
- Standard fittings use short nuts
- Easy to disassemble no flaring tool required
- Primary uses water, gasoline, oil and vacuum lines
- These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
User questions & answers
| Question: | are these fitting dot approved |
| Answer: | Neither. They are for 3/16” outside diameter and 1/4” outside diameter tubing. They do not fit metric tubing. |
| Question: | Will this work with stainless steel tubing |
| Answer: | I don't know. You cannot use them for potable water. They contain lead. I threw them away. |
| Question: | Can I pass my tubing all the way through this? Or is there a stop preventing that |
| Answer: | I do not currently have them, but I don't remember seeing a Department of Transportation stamp. Not sure what they would be used for that would require one. You cannot use them for potable water. They contain lead. I threw them away. |
| Question: | Will the 3/4 NPT male fit a garden hose |
| Answer: | This is only a 1/4" fitting and is to be used with a male 1/4" fitting. A male 3/4" fitting will be much too large for it and the two would not screw together. |
Anderson Metals - 50064-06 50064 Brass Compression Tube Fitting, Tee, 3/8" x 3/8" x 3/8" Tube OD
Anderson Metals
Product description
- Tee with three openings for connecting and branching three pipes
- Female compression tube fitting for connecting to male threaded pipes
- Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability
- Operating temperature range of -65 to +250 degrees F
- These fittings contain lead and are not allowed by federal law to be installed for potable water use in the U.S.A. and its territories.
User questions & answers
| Question: | Is this fitting lead free compliant? Trying to use with fridge filtration system.Thanks |
| Answer: | Its straight thru with a compression washer and nut, should be able to pass tubing |
| Question: | Is this DOT approved |
| Answer: | NPT is a tapered thread. So it snuggs up when you tighten it. Use teflon tape or teflon pipe compound. On the other hand, hose fittings are linear thread and require a composition or rubber washer to seal properly. don't try to mix the two...it won't work. |
| Question: | do these come with compression inserts |
| Answer: | I had good luck with them. Pretty durable, no issues with my organic plantings |
| Question: | If these truly contain lead (as stated in description) what point is there to them? They can't be used on a water line! Buy a lead-free tee |
| Answer: | I used these for quick repairs on 1/2 " copper pipes before sharkbites and still use them at times they are available in tees and 90 elbows |
Ham-Let Stainless Steel 316 Let-Lok Compression Fitting, Nut, 1/2" Tube OD
Hamlet
Product description
- Nut for connecting to a compression tube fitting
- Connects to a tube or tube fitting
- Stainless steel 316 for higher strength and greater corrosion resistance than stainless steel 304
- Maximum operating temperature range of -100 to +1,000 degrees F
- Meets ASTM A213 and A269 standards for quality assurance
User questions & answers
| Question: | Does the nut include the compression ferrels |
| Answer: | No, you want a stainless compression fitting. The brass ferrule is too soft to indent the stainless line. |
LASCO 17-6111 1/4-Inch Compression Brass Nuts, 2-Piece
LASCO
Product description
LASCO Plumbing Specialties 17-6111 is a 1/4-Inch Compression Brass Nuts 2 Piece. Compression nut. Brass material lasts long. For use with compression connection. Used with plastic and copper tubing. 1/4-Inch OD compression.
From the Manufacturer
LASCO Plumbing Specialties 17-6111 is a 1/4-Inch Compression Brass Nuts 2 Piece. Compression nut. Brass material lasts long. For use with compression connection. Used with plastic and copper tubing. 1/4-Inch OD compression.
- 2 pack
- Brass nut
- Brass Compression nut
- Compression nut
- Brass material lasts long
- For use with compression connection
- Used with plastic and copper tubing
- 1/4-Inch OD compression
Latest Reviews
View all
Ridgid Car Vacuums
- Updated: 20.04.2023
- Read reviews
Baby Toys For Infants
- Updated: 14.01.2023
- Read reviews
Blue Saxaphones
- Updated: 16.06.2023
- Read reviews
Grid Journal Notebook
- Updated: 12.05.2023
- Read reviews
Usb2 Audio Interfaces
- Updated: 14.03.2023
- Read reviews