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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How to Measure Threaded Pipe Size
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Right-Angle Flow Rectangular Manifolds
Distribute air or fluid to multiple locations from a single supply source with these manifolds. They are also known as headers. They have mounting holes, so you can mount from the top or side.
PTFE manifolds have the best chemical and corrosion resistance of all the plastic and metal manifolds we offer, so they’re the best choice for acids and other highly corrosive substances. Do not use with deonized water at temperatures above 120° F.
Use a plug (sold separately) to close off any unused inlets and outlets.
For technical drawings and 3-D models, click on a part number.
- For Use With: Acetic Acid, Acetone, Bleach, Deionized Water, Hydrochloric Acid, Nitric Acid, Phosphoric Acid, Sulfuric Acid
- Temperature Range: -20° to 180° F
- Maximum Pressure: 120 psi @ 72° F
| No. of Outlets | Inlet Pipe Size  | Outlet Pipe Size | Lg. | Wd. | Ht. | Outlet Ctr.-to-Ctr. | Color | Each | |
Outlets on One Side—Standard Outlet Spacing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2 | 1/4 | 1/8 | 1 3/4" | 1" | 1" | 3/4" | White | 0000000 | 000000 |
| 2 | 3/8 | 1/4 | 2 3/8" | 1 1/4" | 1 1/4" | 7/8" | White | 0000000 | 00000 |
| 2 | 1/2 | 3/8 | 2 3/4" | 1 1/2" | 1 1/2" | 1" | White | 0000000 | 00000 |
| 4 | 1/4 | 1/8 | 3 1/4" | 1" | 1" | 3/4" | White | 0000000 | 00000 |
| 4 | 3/8 | 1/4 | 4 1/8" | 1 1/4" | 1 1/4" | 7/8" | White | 0000000 | 00000 |
| 4 | 1/2 | 3/8 | 4 3/4" | 1 1/2" | 1 1/2" | 1" | White | 0000000 | 000000 |
Stainless Steel Push-to-Connect Tube Fittings for Chemicals
- For Use With: Alcohol, Bleach, Lubricated Air, Nitric Acid, Sodium Carbonate, Sulfuric Acid
- Temperature Range: 0° to 175° F
- Tubing: Use with firm or hard (Durometer 80A-60D) FEP, polyethylene, or PTFE plastic
Fittings are 316 stainless steel, which has excellent chemical resistance and is more durable than plastic. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. Instead of a release ring, these fittings have a release sleeve that slides back to disconnect tubing.
For technical drawings and 3-D models, click on a part number.
| For Tube OD (A) | For Tube OD (B) | Material | Max. Pressure | Each | |
| 3/8" | 1/4" | 316 Stainless Steel | 345 psi @ 72° F | 00000000 | 000000 |
| 1/2" | 1/4" | 316 Stainless Steel | 345 psi @ 72° F | 00000000 | 00000 |
| 1/2" | 3/8" | 316 Stainless Steel | 345 psi @ 72° F | 00000000 | 000000 |
| 8mm | 6mm | 316 Stainless Steel | 345 psi @ 72° F | 00000000 | 00000 |
| 10mm | 6mm | 316 Stainless Steel | 345 psi @ 72° F | 00000000 | 000000 |
| 10mm | 8mm | 316 Stainless Steel | 345 psi @ 72° F | 00000000 | 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.
PTFE fittings are highly resistant to most acids, alcohols, detergents, and solvents. They’re made by machining. Their nut is made of PVDF, which is resistant to halogens such as chlorine and bromine, strong acids such as hydrofluoric and nitric acids, and organic solvents.
For technical drawings and 3-D models, click on a part number.
