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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High-Pressure Plated Brass Threaded Pipe Nipples and Pipe
The plating on this pipe creates a shiny finish and provides extra protection in corrosive environments. It has the strength to handle high-pressure applications. Black zinc–plated brass pipe has a shiny finish that offers better corrosion resistance than nickel-plated brass and stands up to salt-spray applications.
Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.
Universal threads have a Buna-N rubber gasket to protect against leaks.
- For Use With: Air, Natural Gas, Oil, Water
Black Zinc-Plated Brass | ||||
|---|---|---|---|---|
Pipe Size | Lg. | Max. Pressure | Each | |
NPT | ||||
| 1/8 | 1 1/2" | 1,000 psi @ 72° F | 0000000 | 00000 |
| 1/8 | 2" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 1/8 | 3" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 1/8 | 4" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 1/4 | 1 1/2" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 1/4 | 2" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 1/4 | 3" | 1,000 psi @ 72° F | 0000000 | 00000 |
| 1/4 | 4" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 3/8 | 1 1/2" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 3/8 | 2" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 3/8 | 3" | 1,000 psi @ 72° F | 0000000 | 00000 |
| 3/8 | 4" | 1,000 psi @ 72° F | 0000000 | 00000 |
| 1/2 | 1 1/2" | 1,000 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 2" | 1,000 psi @ 72° F | 0000000 | 00000 |
| 1/2 | 3" | 1,000 psi @ 72° F | 0000000 | 00000 |
| 1/2 | 4" | 1,000 psi @ 72° F | 0000000 | 00000 |
High-Pressure Plated Brass Threaded Pipe Fittings
The plating on these brass fittings creates a shiny finish and provides extra protection in corrosive environments. Fittings have the strength to handle high-pressure applications. Black zinc-plated brass fittings have a shiny finish that offers better corrosion resistance than nickel-plated brass and stands up to salt spray applications.
Female x male 90° elbow adapters are also known as street elbows. Right-angle tee adapters are also known as run tees.
- For Use With: Air, Natural Gas, Oil, Water
International Standard ISO Minimal-Spill
Quick-Disconnect Hose Couplings for Hydraulic Fluid
Also known as flush-face couplings, the plugs and sockets have a flat face, which allows them to mate close against each other, reducing fluid loss when connecting and disconnecting the line. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them when you need frequent access to a line. All of the International Standard ISO Minimal-Spill quick-disconnect plugs are compatible with any of the International Standard ISO Minimal-Spill quick-disconnect sockets of the same coupling size, regardless of the pipe size. Also known as double shut-off couplings, the plugs and sockets both have a shut-off valve that stops the flow when the coupling is separated. They are zinc-plated steel, which has excellent strength and durability and fair corrosion resistance.
Sockets are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.
UN/UNF (SAE Straight) threads are also known as O-ring boss threads.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size. Pressure ratings are given for static (constant) pressure conditions.
Warning: Never attempt to connect or disconnect couplings when operating at maximum pressure. Stop the flow before you disconnect the line.
- Maximum Pressure: 5,800 psi @ 72° F
- Temperature Range: -20° to 212° F
- Compatible With: ISO 16028 Parker FEM, ISO 16028 Perfecting HT, ISO 16028 Snap-Tite 74
- Specifications Met: ISO 16028
- Maximum Pressure: See table
- Temperature Range: -20° to 212° F
- Compatible With: ISO 16028 Parker FEM, ISO 16028 Perfecting HT, ISO 16028 Snap-Tite 74
- Specifications Met: ISO 16028
Sockets | ||||||||
|---|---|---|---|---|---|---|---|---|
For Plug Tip | Optional Dust Plugs | |||||||
| Coupling Size | Lg. | Dia. | Pipe Size | Max. Pressure | Each | Each | ||
Zinc-Plated Steel | ||||||||
| 1/4 | 1/4" | 5/8" | 1/4 | 7,200 psi @ 72° F | 0000000 | 000000 | 0000000 | 00000 |
| 3/8 | 3/16" | 3/4" | 3/8 | 5,800 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 1/2 | 3/8" | 15/16" | 1/2 | 5,800 psi @ 72° F | 0000000 | 00000 | 0000000 | 0000 |
| 3/4 | 7/16" | 1 3/16" | 3/4 | 5,800 psi @ 72° F | 0000000 | 000000 | 0000000 | 0000 |
| 1 | 7/16" | 1 7/16" | 1 | 5,000 psi @ 72° F | 0000000 | 000000 | 0000000 | 00000 |
- Maximum Pressure: See table
- Temperature Range: -20° to 212° F
- Compatible With: ISO 16028 Parker FEM, ISO 16028 Perfecting HT, ISO 16028 Snap-Tite 74
- Specifications Met: ISO 16028