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 Stainless Steel Threaded Pipe Fittings
Use these heavy duty fittings in high-pressure flow applications.
304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance. Tee outlets allow you to create a threaded outlet anywhere along a pipe. They are also known as branch connectors and are comparable to Thredolet. To install, drill a hole in your pipe to match the fitting’s pipe size and weld in place.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Specifications Met: MSS SP-97, ASME B31.1
Pipe Size | For Pipe Size | Ht. | Max. Pressure | Max. Steam Pressure | Each | |
304/304L Stainless Steel | ||||||
|---|---|---|---|---|---|---|
NPT Female × Butt Weld | ||||||
| 3/8 | 3/8 to 1/2 | 13/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 000000 |
| 3/8 | 3/4 to 36 | 13/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
316/316L Stainless Steel | ||||||
NPT Female × Butt Weld | ||||||
| 3/8 | 3/8 to 1/2 | 13/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
| 3/8 | 3/4 to 36 | 13/16" | 3,000 psi @ 72° F | 600 psi @ 220° F | 00000000 | 00000 |
High-Pressure Iron and Steel Threaded Pipe Fittings
These fittings can stand up to high-pressure applications. Use them in noncorrosive environments.
Tee outlets allow you to create a threaded outlet anywhere along a pipe. They are also known as branch connectors and are comparable to Thredolet. To install, drill a hole in your pipe to match the fitting’s pipe size and weld in place.
Phosphate-coated and zinc-phosphate-coated fittings offer some corrosion resistance, but aren't intended for corrosive environments.
Note: The maximum pressure listed for Class 3000 fittings is for conditions where there are no sudden changes in pressure or velocity. Please refer to ASME B16.11 to determine the specific maximum operating pressure for your application.
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Specifications Met : ASME B31.1, ASTM A105, ASME B31.3, MSS SP-97, ASME B16.9, ASME B16.11
- Pipe Nipples and Pipe: Use Schedule 160 steel
- Flanges: Use Class 1500 steel
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.
Nickel-plated brass pipe provides better corrosion resistance than unplated brass.
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.
Nonporous Alumina Ceramic Tubes
- Color: White
- Max. Temperature: 3075° F
- Fabrication: Fired
- Porosity: 0%
- Compressive Strength: 300,000 psi
Seal out air and gas in high-temperature and high-wear applications. This ultrahard ceramic can also be used in applications that require superior strength.