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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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 |
Compression Fittings for Plastic Tubing—Chemicals
- For Use With: PFA Plastic: Hydrochloric Acid, Sulfuric Acid
PTFE Plastic: Alcohol, Ammonia, Benzoic Acid, Bleach, Bromine, Coolant, Fluoboric Acid, Hydrochloric Acid, Hydrofluoric Acid, Nitric Acid, Organic Solvents, Sodium Carbonate, Sulfuric Acid - Temperature Range: PFA Plastic: 0° to 350° F
PTFE Plastic: -40° to 185° F - Tubing: PFA Plastic: Use with hard (Durometer 50D-65D) PFA or PTFE plastic
PTFE Plastic: Use with hard (Durometer 60D) PFA or PTFE plastic
A sleeve (ferrule) compresses the tubing as you tighten the nut, creating a strong seal. The nut and sleeve are included. Fittings are also known as flareless fittings. Fittings that include a gripper sleeve on the tubing create an even tighter seal.
PFA fittings stand up to harsh substances. They’re made through a melting process.
Luer Lock Tube Couplings for Plastic and Rubber Tubing—Chemicals
- For Use With: Acetic Acid, Bleach, Ethanol, Hydrochloric Acid, Nitric Acid, Phosphoric Acid, Sulfuric Acid
- Tubing: Use with soft (Durometer 40A-65A) PVC plastic or silicone rubber
A staple in labs, these couplings are highly versatile, fitting any luer lock plug, socket, syringe, or needle. They lock together with a push and turn, so they work well in lines that are frequently disconnected. Use them in low-pressure applications. They have a compact body for installation in tight spaces. Made of PVDF, they resist most acids, alcohols, and organic solvents. PVDF is also known as Kynar.
Note: For a complete coupling, order a plug and a socket.
| For Tube ID | Material | Color | Clarity | Max. Pressure | Locking Ring Included | Pkg. Qty. | Pkg. | |
| 1/16" | PVDF Plastic | White | Semi-Clear | Not Rated | With Locking Ring | 10 | 0000000 | 000000 |
| 3/32" | PVDF Plastic | White | Semi-Clear | Not Rated | With Locking Ring | 10 | 0000000 | 00000 |
| 1/8" | PVDF Plastic | White | Semi-Clear | Not Rated | With Locking Ring | 10 | 0000000 | 00000 |
| 5/32" | PVDF Plastic | White | Semi-Clear | Not Rated | With Locking Ring | 10 | 0000000 | 00000 |
| 1/4" | PVDF Plastic | White | Semi-Clear | Not Rated | With Locking Ring | 10 | 0000000 | 00000 |
| Thread Size | Material | Color | Clarity | Max. Pressure | Locking Ring Included | Pkg. Qty. | Pkg. | |
UN/UNF (SAE Straight) Threads | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4"-28 | PVDF Plastic | White | Semi-Clear | Not Rated | With Locking Ring | 10 | 0000000 | 000000 |
| Material | Color | Clarity | Max. Pressure | Pkg. Qty. | Pkg. | |
| PVDF Plastic | White | Semi-Clear | Not Rated | 10 | 0000000 | 00000 |
