How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Push-to-Connect Tube Fittings for Air
- Temperature Range: 0° to 170° F, except polybutylene plastic fittings are 32° to 140° F
- Tubing: Use with firm (Durometer 95A-45D) polyethylene plastic or polyurethane rubber
- Specifications Met: ISO 14743, except cartridges and polybutylene plastic fittings
Insert tubing into these fittings and an internal gripping ring and O-ring hold the tubing tight. They are also known as instant fittings. To disconnect, push on the release ring and pull the tubing out of the fitting. Fittings have good corrosion resistance. Use them in low-pressure applications.
Identification rings (sold separately) snap over the release ring so you can color-code your lines.
Clips (sold separately) align and organize your tubing and fittings.
For technical drawings and 3-D models, click on a part number.
Fittings with tube stem insert into the push-to-connect end of another fitting in place of a length of tubing.
| For Tube OD, mm | Tube Stem OD, mm | Material | Color | Release Ring Color | Max. Pressure | Mount Type | Mounting Fasteners Included | Each | |
| 4 | 6 | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 000000 |
| 4 | 8 | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| 6 | 8 | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 00000 |
| For Tube OD (A) | For Tube OD (B) | Material | Color | Release Ring Color | Max. Pressure | Mount Type | Mounting Fasteners Included | Each | |
| 5/32" | 1/4" | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 00000000 | 000000 |
| 4mm | 6mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 0000000 | 00000 |
| 6mm | 8mm | Nylon Plastic | Black | Black | 290 psi @ 72° F | Screw On | No | 0000000 | 00000 |
Universal-Thread Push-to-Connect Tube Fittings for Air and Water
Threads
with Gasket
- Temperature Range: 0° to 175° F
- Tubing: Use with firm (Durometer 85A-100A) nylon plastic or polyurethane rubber
- Specifications Met: ISO 14743
Make lightweight connections without the hassle of matching the exact thread type—these fittings connect to NPT, NPTF, BSPP, BSPT, and other universal threads. With a nylon body and nickel-plated brass threads, these fittings are lighter than most metal fittings, and withstand corrosion better than plain brass threads. They also have a reusable gasket to guard against leaks. Connect the tube ends to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect them, push the release ring and pull the tubing out of the fitting. These fittings are sometimes known as instant fittings. All meet ISO 14743, which is an international standard for push-to-connect fittings for plastic tubing.
For technical drawings and 3-D models, click on a part number.
Threads
with Gasket
Release Ring | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | For Tube OD | Pipe Connection Material | Tube Connection Material | Gasket Material | Color | Material | Color | Maximum Pressure | Each | |
BSPP, BSPT, NPT, NPTF, Universal Threads | ||||||||||
| 1/8 | 5/32" | Nickel-Plated Brass | Nylon Plastic | Buna-N Rubber | Black | Plastic | Blue | 250 psi @ 72° F | 0000000 | 000000 |
| 1/8 | 1/4" | Nickel-Plated Brass | Nylon Plastic | Buna-N Rubber | Black | Plastic | Blue | 250 psi @ 72° F | 00000000 | 00000 |
| 1/8 | 4mm | Nickel-Plated Brass | Nylon Plastic | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 00000 |
| 1/8 | 6mm | Nickel-Plated Brass | Nylon Plastic | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 00000 |
| 1/4 | 5/32" | Nickel-Plated Brass | Nylon Plastic | Buna-N Rubber | Black | Plastic | Blue | 250 psi @ 72° F | 0000000 | 00000 |
| 1/4 | 1/4" | Nickel-Plated Brass | Nylon Plastic | Buna-N Rubber | Black | Plastic | Blue | 250 psi @ 72° F | 00000000 | 00000 |
| 1/4 | 4mm | Nickel-Plated Brass | Nylon Plastic | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 00000 |
| 1/4 | 6mm | Nickel-Plated Brass | Nylon Plastic | Buna-N Rubber | Black | Plastic | Black | 250 psi @ 72° F | 00000000 | 00000 |
Push-to-Connect Fittings for Plastic Tubing—Food and Beverage
- Temperature Range: 35° to 140° F
- Tubing: See table
- Specifications Met:
White Polypropylene: NSF/ANSI 51, NSF/ANSI 61
Black Polypropylene: FDA Compliant 21 CFR 176.170, NSF/ANSI 58, NSF/ANSI 372
Acetal: NSF/ANSI 51, NSF/ANSI 61
Also known as instant fittings, these connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect fittings with a release ring, push on the release ring and pull the tubing out of the fitting.
Polypropylene fittings have excellent impact and abrasion resistance. They meet NSF/ANSI standards for safe use with food. Some are also FDA compliant for indirect contact with food.
Acetal fittings resist moisture, so they won’t soften and lose strength in humid environments. They meet NSF/ANSI 51 for safe use with food and NSF/ANSI 61 for safe use with drinking water.
Black fittings have excellent UV resistance and are suitable for outdoor environments.
For technical drawings and 3-D models, click on a part number.
| For Tube OD (A) | For Tube OD (B) | Material | Max. Pressure | For Tube Hardness Rating | For Tube Hardness | Release Ring Color | Each | |
| 3/8" | 1/4" | Polypropylene Plastic | 150 psi @ 72° F | Firm, Hard | Durometer 50D-90D | White | 00000000 | 00000 |
Standard-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 40 plastic pipe–they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.
Fittings for drinking water meet NSF/ANSI Standard 61.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
Fittings that meet ASTM D1784, ASTM D1785, and ASTM D4066 adhere to specifications and testing requirements for material quality.
Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D1785, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Schedule 40 PVC Plastic
Thick-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 80 pipe–they have thicker, stronger walls than standard-wall fittings so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. Fittings are plastic for good corrosion resistance. They meet ASTM specifications and testing requirements for material quality.
Fittings for drinking water meet NSF/ANSI Standard 61.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
Drain, Waste, and Vent ABS Pipe Fittings for Chemicals
These Schedule 40 fittings are an economical option for gravity-flow chemical waste systems. They are ABS plastic, which has excellent strength and impact resistance and good chemical resistance. Fittings meet ASTM D2661, ASTM D3311, ASTM D3965, and ASTM F1498 specifications and testing requirements for material quality and product dimensions.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with ABS cement (also known as solvent weld).
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.
- For Use With: Sodium Hydroxide
- Maximum Temperature: 180° F
- Specifications Met: ASTM D2661, ASTM D3311, ASTM D3965, ASTM F1498
- Pipe Nipples and Pipe: Use Schedule 40 ABS Plastic
- Flanges: Use Schedule 40 ABS Plastic
Gravity-Flow Polypropylene Pipe Fittings for Corrosive Chemical Waste
- For Use With: Deionized Water, Hydrochloric Acid, Oil, Phosphoric Acid, Salt Water, Solvents
- Maximum Temperature: 220° F
- Specifications Met: ASTM D4101, ASTM D635, ASTM F1412, UL 94 V-2
- Compatible with Gravity-Flow Polypropylene Pipe for Corrosive Chemical Waste
Made of polypropylene, these gravity-flow fittings withstand organic solvents, such as acetone, that would dissolve CPVC pipe. They also stand up to highly corrosive acids, such as hydrochloric acid, and alkalies. All meet UL and ASTM standards for flame retardance and self-extinguishment in the case of fire. They also meet strict ASTM specifications and testing requirements for material quality and product dimensions. They’re compatible with Orion Blueline No-Hub and Orion Rionfuse chemical waste pipe and pipe fittings.
For technical drawings and 3-D models, click on a part number.
Aboveground Standard-Wall PVC Pipe Fittings for Drain, Waste, and Vent
- For Use With: Water
- Max. Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D2665
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Schedule 40 PVC Plastic
These Schedule 40 fittings are the industry standard for gravity-flow drain, waste, and vent (DWV) applications. Fittings are PVC, which has good corrosion resistance. They meet ASTM D1784 and ASTM D2665 specifications and testing requirements for material quality.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
