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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Nickel-Plated Brass Push-to-Connect Tube Fittings for Air
- For Use With: Air, Lubricated Air
- Temperature Range: 0° to 140° F
- Tubing: Fittings with Release Ring and Fittings with no Release Type: Use with firm or hard (Durometer 95A-60D) nylon plastic, polyethylene plastic or polyurethane rubber
Fittings with Release Sleeve: Use with firm or hard (Durometer 95A-60D) polyethylene plastic or polyurethane rubber
Made of nickel-plated brass, these fittings have better corrosion resistance than unplated brass fittings. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring or sleeve and pull the tubing out of the fitting.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
Fittings with intermittent swivel rotate 360° before and after installation as needed to allow movement in the system and to prevent kinking.
Release Ring | ||||||
|---|---|---|---|---|---|---|
| For Tube OD | Pipe Size | Material | Gasket Material | Max. Pressure | Each | |
NPT, BSPP, BSPT, NPTF, Universal Threads | ||||||
| 4mm | 1/8 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 000000 |
| 5mm | 1/8 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 6mm | 1/4 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 8mm | 1/4 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 8mm | 1/8 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 8mm | 3/8 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 10mm | 1/4 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 10mm | 3/8 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 12mm | 1/2 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 12mm | 1/4 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
| 12mm | 3/8 | Nickel-Plated Brass | Buna-N Rubber | 250 psi @ 72° F | 00000000 | 00000 |
Push-to-Connect Tube Fittings for Air
UN/UNF (SAE Straight)
Male Threads with Gasket
- 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.
Fittings with PTFE thread sealant offer extra protection against leaks.
BSPP and UN/UNF (SAE Straight) male threads have a gasket to protect against leaks. UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
For technical drawings and 3-D models, click on a part number.
UN/UNF (SAE Straight)
Male Threads with Gasket
Fittings with external hex or slotted drive allow for easy adjustments in tight spaces; they are also known as banjo-style fittings.
| For Tube OD | Pipe Size | Thread Size | Tube Connection Material | Pipe Connection Material | Gasket Material | Color | Release Ring Color | Max. Pressure | Drive Size | Features | Each | |
NPT Threads | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5/32" | 1/8 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 33/64" | PTFE Thread Sealant | 00000000 | 000000 |
| 3/16" | 1/8 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 35/64" | PTFE Thread Sealant | 00000000 | 00000 |
| 1/4" | 1/8 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 33/64" | PTFE Thread Sealant | 00000000 | 00000 |
| 1/4" | 1/4 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 43/64" | PTFE Thread Sealant | 00000000 | 00000 |
| 1/4" | 3/8 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 53/64" | PTFE Thread Sealant | 00000000 | 00000 |
| 5/16" | 1/8 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 35/64" | PTFE Thread Sealant | 00000000 | 00000 |
| 5/16" | 1/4 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 45/64" | PTFE Thread Sealant | 00000000 | 000000 |
| 3/8" | 1/4 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 43/64" | PTFE Thread Sealant | 00000000 | 00000 |
| 3/8" | 3/8 | __ | Nylon Plastic | Nickel-Plated Brass | __ | Black | Black | 290 psi @ 72° F | 53/64" | PTFE Thread Sealant | 00000000 | 00000 |
UN/UNF (SAE Straight) Threads | ||||||||||||
| 1/8" | __ | 10-32 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | 15/64" | __ | 00000000 | 00000 |
| 5/32" | __ | 10-32 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | 15/64" | __ | 00000000 | 0000 |
| 1/4" | __ | 10-32 | Nylon Plastic | Nickel-Plated Brass | Buna-N Rubber | Black | Black | 290 psi @ 72° F | 15/64" | __ | 00000000 | 00000 |
Easy-Access CPVC Pipe Fittings for Chemicals
- For Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Hydrochloric Acid, Phosphoric Acid, Salt Water, Sodium Hydroxide, Sulfuric Acid (80%), Water
- Temperature Range: 32° to 200° F
- Specifications Met: ASTM D1784
- Pipe Nipples and Pipe: Use Schedule 80 CPVC Plastic
Also known as Victaulic fittings, these have grooved ends that connect to pipe with a clamp, so you can access your chemical process line for routine maintenance. Fittings are CPVC, which has excellent chemical resistance to withstand a variety of salt solutions, acids, and other harsh substances. They are comparable to Corzan. Fittings meet ASTM D1784 specifications and testing requirements for material quality.
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.
Clamp connectors let you connect CPVC grooved-end pipe fittings and pipe.
| For Pipe Size | For Pipe OD | Material | Color | Gasket Material | Max. Pressure | Specifications Met | Each | |
| 2 | 2 3/8" | Enamel-Coated Iron | Orange | EPDM Rubber | 300 psi @ 72° F | ASTM D1784, ASTM F441 | 0000000 | 000000 |
| 3 | 3 1/2" | Enamel-Coated Iron | Orange | EPDM Rubber | 300 psi @ 72° F | ASTM D1784, ASTM F441 | 0000000 | 00000 |
| 4 | 4 1/2" | Enamel-Coated Iron | Orange | EPDM Rubber | 300 psi @ 72° F | ASTM D1784, ASTM F441 | 0000000 | 000000 |
Clamp adapters let you connect CPVC grooved-end pipe fittings and pipe to metal grooved-end pipe fittings and pipe.
Clamp reducers allow you to connect CPVC grooved-end pipe fittings and pipe and transition from a larger pipe size to a smaller pipe size.
| For Pipe Size | For Pipe OD | Material | Color | Gasket Material | Max. Pressure | Specifications Met | Each | |
| 3 × 2 | 3 1/2" × 2 3/8" | Enamel-Coated Iron | Orange | EPDM Rubber | 300 psi @ 72° F | ASTM D1784, ASTM F441 | 0000000 | 000000 |
| 4 × 2 | 4 1/2" × 2 3/8" | Enamel-Coated Iron | Orange | EPDM Rubber | 300 psi @ 72° F | ASTM D1784, ASTM F441 | 0000000 | 000000 |
| 4 × 3 | 4 1/2" × 3 1/2" | Enamel-Coated Iron | Orange | EPDM Rubber | 300 psi @ 72° F | ASTM D1784, ASTM F441 | 0000000 | 000000 |