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Plastic Push-to-Connect Tube Fittings for Chemicals
- For Use With: Inch: Alcohol, Hydrochloric Acid, Nitric Acid, Sodium Carbonate, Sulfuric Acid
Metric: Acetic Acid, Alcohol, Arsenic Acid, Benzoic Acid, Fluoboric Acid, Sodium Carbonate, Sulfuric Acid - Temperature Range: Inch: 0° to 270° F
Metric: 32° to 175° F - Tubing: Use with hard (Durometer 55D-60D) FEP plastic
Also known as instant fittings, these chemical-resistant plastic fittings connect to tubing with a push. An internal gripping ring holds the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. Use these fittings in low-pressure applications.
PVDF fittings offer excellent chemical resistance, and can be used with hydrochloric acid and nitric acid. They withstand temperatures up to 270° F, higher than other push-to-connect fittings for chemicals. They are produced in a clean room and are bagged individually to prevent dirt and moisture from contaminating the inside. PVDF is also known as Kynar.
Caps fit over a tube stem end of a fitting or a piece of tubing.
| For Tube OD | Material | Color | Release Ring Color | Max. Pressure | Each | |
| 1/4" | PVDF Plastic | Black | Gray | 300 psi @ 72° F | 0000000 | 00000 |
Quick-Disconnect Tube Couplings for Chemicals
Couplings consist of a plug and a socket (sold separately) that join with a latch, so you can frequently connect and disconnect your line. To connect, insert the plug into the socket; to disconnect, press the latch on the socket and remove the plug. Plugs and sockets are polypropylene, which has excellent chemical, impact, and abrasion resistance.
Plugs and sockets with shut-off have a valve to stop the flow when the coupling is separated so fluid won’t spill from your line.
Note: For a complete coupling, order a plug and a socket with the same coupling size.
- For Use With: Ammonia, Ethanol, Phosphoric Acid (70%), Sodium Carbonate
- Temperature Range: 32° to 160° F
Barbed plugs insert into tubing and secure with a clamp.
Open Flow | With Shut-Off | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube ID | Coupling Size | Plug OD | Material | Color | Max. Pressure | Each | Each | ||
| 1/8" | 1/8 | 5/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 00000 | 00000000 | 000000 |
| 1/4" | 1/8 | 5/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 0000 | 00000000 | 00000 |
| 1/4" | 1/4 | 7/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 0000 | 00000000 | 00000 |
| 3/8" | 1/4 | 7/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 0000 | 00000000 | 00000 |
| 3/8" | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1/2" | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 5/8" | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 0000 | 00000000 | 00000 |
| 3/4" | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 0000000 | 00000 |
- For Use With: Ammonia, Ethanol, Phosphoric Acid (70%), Sodium Carbonate
- Temperature Range: 32° to 160° F
Barbed plugs insert into tubing and secure with a clamp.
Open Flow | With Shut-Off | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube ID | Coupling Size | Plug OD | Material | Color | Max. Pressure | Each | Each | ||
| 1/8" | 1/8 | 5/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 000000 | 00000000 | 000000 |
| 1/4" | 1/8 | 5/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1/4" | 1/4 | 7/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 3/8" | 1/4 | 7/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 3/8" | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1/2" | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
- For Use With: Ammonia, Ethanol, Phosphoric Acid (70%), Sodium Carbonate
- Temperature Range: 32° to 160° F
Open Flow | With Shut-Off | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Coupling Size | Plug OD | Material | Color | Max. Pressure | Each | Each | ||
NPT Threads | |||||||||
| 1/8 | 1/8 | 5/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 00000 | 00000000 | 000000 |
| 1/4 | 1/4 | 7/16" | Polypropylene Plastic | Beige | 120 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 3/8 | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 3/4 | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
| 1/2 | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
BSPT Threads | |||||||||
| 3/8 | 3/8 | 3/4" | Polypropylene Plastic | Gray | 60 psi @ 72° F | 00000000 | 00000 | 00000000 | 00000 |
High-Flow Quick-Disconnect Tube Couplings for Chemicals
- For Use With: Acetic Acid (20%), Ammonia, Carbon Dioxide, Citric Acid, Diesel Fuel, Ethanol, Ethylene Glycol, Gasoline, Hydraulic Fluid (Petroleum Based), Hydrochloric Acid, Hydrogen Peroxide (30%), Kerosene, Methanol, Nitric Acid (20%), Potassium Hydroxide, Sodium Carbonate, Sodium Hydroxide (20%), Sulfuric Acid (75%), Synthetic Oil
- Temperature Range: 32° to 250° F
- Tubing: Use with soft or firm (Durometer 55A-95A) nylon plastic, polyethylene plastic, polypropylene plastic, polyurethane rubber, PVC plastic or TPE plastic
A spring-free flow path allows more chemicals to pass through these tube couplings at lower line pressures than other quick-disconnect couplings. This reduces turbulence, foaming, bubbles, and blockage. They have a shut-off valve that stops the flow when the coupling is disconnected, so chemicals won’t leak from your line. Unlike couplings with a button release, these have a safety slide to reduce accidental separation from bumps or drops. They are often used in laboratories, pharmaceutical facilities, and other sterile environments.
Made of PVDF, also known as Kynar, these couplings have excellent chemical and UV resistance at ambient and elevated temperatures. They also resist abrasion, impact, flames, and corrosion. Compared to other quick-disconnect couplings for chemicals, these couplings can withstand higher temperatures—all the way up to 250° F.
When you insert the plug into the socket, it’ll connect with a click. To disconnect, slide the latch on the socket and remove the plug.
Note: For a complete coupling, order a plug and a socket with the same coupling size.
For technical drawings and 3-D models, click on a part number.
They have a single barb that grips onto tubing or hose and provides a smooth clamping surface for extra-tight connections that minimize leaks.
