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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Barbed Tube Fittings for Drinking Water
- Temperature Range: 32° to 180° F
- Tubing:
All Fittings: Use with hard polyethylene plastic
Socket-Connect Fittings: Use with hard polyethylene plastic or copper - Specifications Met: See table
Connect these fittings to tubing with a ring and a crimping tool (both sold separately). They have multiple barbs that grip onto tubing for a secure hold. Fittings are compatible with Viega PEX tubing. Safe to use with drinking water, these fittings meet the strict standards of NSF/ANSI 61.
Brass fittings offer good corrosion resistance.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.
| For Tube ID | Pipe Size | Material | Max. Pressure | Specifications Met | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 3/8" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1/2" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 1/2" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 3/4" | 1 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1" | 1 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| For Tube ID | Pipe Size | Material | Max. Pressure | Specifications Met | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 3/8" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1/2" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| 1/2" | 1/2 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 3/4" | 3/4 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 3/4" | 1 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1" | 1 | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
Crimp or solder a female press-connect or solder-connect tube fitting onto the male socket-connect end of this fitting to create a leak-tight connection. To crimp, you’ll need a press-connect crimping tool. Solder-connect fittings are also known as sweat fittings.
Socket-Connect | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube ID (Barbed) | Copper Tube Size | Tube OD | Type | Material | Max. Pressure | Specifications Met | Each | |
| 1/2" | 1/2 | 5/8" | Press, Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 00000 |
| 3/4" | 3/4 | 7/8" | Press, Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 1" | 1 | 1 1/8" | Press, Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
Use a press-connect crimping tool to secure the press-connect end to tubing or the male socket-connect tube end of a fitting without heat or soldering. They have an internal O-ring that creates a leak-tight connection.
Socket-Connect | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube ID (Barbed) | Copper Tube Size | For Tube OD | Type | Material | Max. Pressure | Specifications Met | Each | |
| 1/2" | 1/2 | 5/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1/2" | 3/4 | 7/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 3/4" | 1/2 | 5/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4" | 3/4 | 7/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
| 1" | 1 | 1 1/8" | Press | Bronze | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 00000 |
Solder-connect fittings create a permanent, leak-tight connection to tubing or the male socket-connect tube end of another fitting. They are also known as sweat fittings.
Socket-Connect | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Tube ID (Barbed) | Copper Tube Size | For Tube OD | Type | Material | Max. Pressure | Specifications Met | Each | |
| 1/2" | 1/2 | 5/8" | Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 00000 |
| 3/4" | 3/4 | 7/8" | Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 0000000 | 0000 |
| 1" | 1 | 1 1/8" | Solder | Brass | 160 psi @ 72° F | ASTM F1807, NSF/ANSI 61 | 00000000 | 0000 |
These adapters have a mounting base to anchor the fitting.
Solder-connect fittings create a permanent, leak-tight connection to tubing or the male socket-connect tube end of another fitting. They are also known as sweat fittings.
| For Tube ID (A) | For Tube ID (B) | Material | Max. Pressure | Specifications Met | Each | |
| 3/4" | 1/2" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 00000000 | 00000 |
Inline tees are also known as branch tees.
| For Tube ID (A) | For Tube ID (B) | Material | Max. Pressure | Specifications Met | Each | |
| 1/2" | 3/4" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 0000000 | 00000 |
| 3/4" | 1/2" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4" | 1" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 00000000 | 0000 |
| 1" | 3/4" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 00000000 | 0000 |
Plugs insert into the end of a fitting.
| For Tube ID | Material | Max. Pressure | Specifications Met | Pkg. Qty. | Pkg. | |
| 3/8" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 10 | 00000000 | 00000 |
| 1/2" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 10 | 00000000 | 0000 |
| 3/4" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 10 | 00000000 | 0000 |
| 1" | PPSU | 160 psi @ 72° F | ASTM F2159, NSF/ANSI 61 | 10 | 00000000 | 00000 |
Crimping Tools for Barbed Tube Fittings for Drinking Water
Use these tools with a crimping ring (sold separately) to connect barbed tube fittings for drinking water to tubing. Compatible with Viega PEX fittings.