12 best compression cap fittings
Compression cap fittings are a type of plumbing component used for sealing or capping the end of a pipe or tube. They are commonly used in various plumbing and piping applications to provide a secure, leak-proof closure. Here's what you need to know about compression cap fittings:
Design: Compression cap fittings are typically made of metal (such as brass or copper) or plastic (usually polypropylene or PVC). They have a cylindrical shape with a threaded interior that matches the threads on the outside of a pipe or tube.
Compression Seal: These fittings create a seal by compressing a washer or ferrule (also known as an olive or sleeve) onto the pipe when the cap is tightened. This compression action ensures a tight and leak-free connection.
Applications: Compression cap fittings are used for various purposes in plumbing and piping systems, including:
- Capping the end of a pipe or tube to prevent the flow of fluids.
- Closing off unused or temporary connections.
- Sealing pipes during maintenance or repairs.
- Securing the end of a pipe when pressure testing a system.
Compatibility: It's essential to choose compression cap fittings that match the material and size of the pipe or tube you are working with.These fittings are available in different sizes, and they are compatible with various pipe materials, including copper, plastic, and brass.
Installation: Installing compression cap fittings is relatively straightforward:
- Cut the pipe or tubing to the desired length.
- Slide the compression nut and ferrule onto the pipe.
- Thread the compression cap onto the pipe, making sure the ferrule is in the proper position.
- Tighten the compression cap using a wrench until it forms a secure seal.
Leak Prevention: Proper installation is crucial for preventing leaks. Over-tightening can damage the fitting or the pipe, while under-tightening can result in leaks. Follow the manufacturer's guidelines for tightening torque.
Reusable: Compression cap fittings are typically reusable, meaning you can remove them and reinstall them multiple times without compromising the sealing capability, as long as the components are in good condition.
Tools: You may need some basic tools for working with compression cap fittings, such as a pipe cutter, pipe wrench, and Teflon tape (for sealing threads).
Pressure Rating: The pressure rating of the compression cap fitting should be considered to ensure it can withstand the operating pressure of the plumbing or piping system.
Temperature Compatibility: Check that the materials used in the compression cap fitting are suitable for the temperature range of your application, especially if it involves extreme temperatures.
In summary, compression cap fittings are essential components in plumbing and piping systems, allowing for the secure and leak-free sealing of pipes and tubes. Proper selection, installation, and maintenance of these fittings are essential to ensure the integrity of the plumbing system and prevent leaks.
Below you can find our editor's choice of the best compression cap fittings on the market
LTWFITTING 1/4-Inch Brass Compression Cap Stop Valve Cap,Brass Compression Fitting(Pack of 10)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression cap stop valve cap. 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:10 pcs.
- Materies: brass.
- Net Weight: 6g/pc.
- Type: Compression Cap.
- 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 .
LTWFITTING 3/8-Inch Brass Compression Cap Stop Valve Cap,Brass Compression Fitting(Pack of 60)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression cap stop valve cap. 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:60 pcs.
- Materies: brass.
- Net Weight: 8g/pc.
- Type: Compression Cap.
- Tube Size:3/8" 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 Cap
- Tube Size:3/8" OD
- Materies: BRASS
- Net Weight: 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: | are these lead free |
| Answer: | Hello, It is lower lead ,not lead free Thanks! Robert |
| Question: | Does this have a rubber gasket inside to prevent leaks |
| Answer: | It's a compression fitting it does not need a rubber gasket. It fits the cone shape that it is capping off. I used them on a component for my 4000 psi pressure washer and they don't leak. Also actually holding up to the pressure for now which I was concerned since they are very thin. |
Anderson Metals 54040 Brass Tube Fitting, Cap, 1/4" Tube OD
Anderson Metals
Product description
Two piece construction - nut and body. Use with brass tubing. Standard fittings use short nuts. Resists mechanical pullout. Easy to disassemble and can be reassembled many times with no effect on the seal. -65 degree F to +250 degree F temperature range. Primary uses fuel equipment, plumbing, gases, refrigeration and vacuum. 7/16"-20 Thread size.
- Two piece construction - nut and body
- Use with brass tubing
- Standard fittings use short nuts
- Resists mechanical pullout
- Easy to disassemble and can be reassembled many times with no effect on the seal
- 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 cap for compression fittings? This is not npt correct |
| Answer: | Yes it is for compression fittings. The threads are not NPT. |
| Question: | Where is it made |
| Answer: | USA. |
| Question: | Does it need washer gasket to prevent leaking? What is the size of the washer |
| Answer: | Yes. It needs a 1/4” OD copper gasket for a proper seal. |
Jmf Compression Cap 5/16 " Yellow Brass 400 Psi Lead Free
JMF
Product description
JMF 5/16 in. Dia. Compression To Compression Yellow Brass Cap
- End 1 Diameter: 5/16 in.
- End 1 Type: Compression
- End 3 Type: Compression
- Material: Yellow Brass
- Product Type: Cap
LTWFITTING 5/8-Inch Brass Compression Cap Stop Valve Cap,Brass Compression Fitting(Pack of 10)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression cap stop valve cap. 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:10 pcs.
- Materies: brass.
- Net Weight: 17g/pc.
- Type: Compression Cap.
- Tube Size:5/8" 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 Cap
- Tube Size:5/8" OD
- Materies: BRASS
- Net Weight: 17g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
Parker A-Lok 6BLP6-316 316 Stainless Steel Compression Tube Fitting, Cap, 3/8" Tube OD
Parker
Product description
- Cap for closing the end of a tube or fitting
- Connects to tubing
- Chemically hardened type 316 stainless steel for higher strength and greater corrosion resistance than untreated stainless steel
- Twin ferrule compression fitting for a leak-resistant seal in high-pressure applications
- For use with stainless steel tubing
User questions & answers
| Question: | Does anyone know if they make a brass version of 2blp2-316 and if yes what the pn is? possibly 2blp2-b |
| Answer: | Scott, Yes, Parker does make the 2BLP2-B (Brass). We do not offer it, though. We sell the CPI equivalent to this - the 2 FNZ-B - on our store, but it is not in stock right now. Regards, ShopCross |
| Question: | I'm looking to cap a 3/8" od stainless steel tube. this says it's made for a parker cpi or a-lok fitting. will it work to cap a smooth 3/8" tube |
| Answer: | No, it's designed to cap a tube fitting. Not the tube itself. I'd use a 6FSC4N-316 and a 1/4 HHP-SS plug. Both in stock. |
LTWFITTING 3/8-Inch Brass Compression Cap Stop Valve Cap,Brass Compression Fitting(Pack of 10)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression cap stop valve cap. 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:10 pcs.
- Materies: brass.
- Net Weight: 8g/pc.
- Type: Compression Cap.
- Tube Size:3/8" 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 .
User questions & answers
| Question: | Are these caps suitable for capping the 3/8 inch end of a shut off water line valve used for faucets |
| Answer: | That’s the sole purpose for why I have been purchasing them. Works well. |
| Question: | I have a pipe ending with threads with a 3/8" *outer* diameter. Will this fit |
| Answer: | Only if it’s 3/8 compression for 1/4 inch copper not pipe thread |
LTWFITTING 1/4-Inch OD Compression Union,Brass Compression Fitting(Pack of 10)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression union. 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:10 pcs.
- Materies: brass.
- Net Weight: 23.1g/pc.
- Type: Compression Union.
- 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 Union
- Tube Size:1/4" OD
- Materies: BRASS
- Net Weight: 23.1g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
LTWFITTING1/2-Inch Brass Compression Cap Stop Valve Cap,Brass Compression Fitting(Pack of 10)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression cap stop valve cap. 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:10 pcs.
- Materies: brass.
- Net Weight: 14g/pc.
- Type: Compression Cap.
- Tube Size:1/2" 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 Cap
- Tube Size:1/2" OD
- Materies: BRASS
- Net Weight: 14g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
LTWFITTING 1/4-Inch Brass Compression Cap Stop Valve Cap,Brass Compression Fitting(Pack of 60)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression cap stop valve cap. 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:60 pcs.
- Materies: brass.
- Net Weight: 6g/pc.
- Type: Compression Cap.
- 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 Cap
- Tube Size:1/4" OD
- Materies: BRASS
- Net Weight: 6g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
LTWFITTING 3/8-Inch Brass Compression Cap Stop Valve Cap,Brass Compression Fitting(Pack of 700)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression cap stop valve cap. 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:700 pcs.
- Materies: brass.
- Net Weight: 8g/pc.
- Type: Compression Cap.
- Tube Size:3/8" 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 Cap
- Tube Size:3/8" OD
- Materies: BRASS
- Net Weight: 8g/PC
- Choosing products dimensions and quantities at column of size and colour seperately,price would be more favorable if choosing wholesale.
LTWFITTING 5/16-Inch Brass Compression Cap Stop Valve Cap,Brass Compression Fitting(Pack of 10)
Ningbo Haishu HuaxinYicheng Trade Co., Ltd.
Product description
Product Description
Durable and high standard brass compression cap stop valve cap. 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:10 pcs.
- Materies: brass.
- Net Weight: 7g/pc.
- Type: Compression Cap.
- Tube Size:5/16" 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 .
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