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Precision Extreme-Pressure Stainless Steel Threaded Pipe Fittings
Made to tighter tolerances than other stainless steel pipe fittings, these are also known as instrumentation fittings. The male threads are rolled for extra strength in extreme-pressure applications. Fittings are commonly used to connect equipment in gas and hydraulic fluid lines. They are 316 stainless steel for excellent corrosion resistance. UN/UNF (SAE Straight) threads are also known as O-ring boss threads; the male threads have a gasket to prevent leaks.
For technical drawings and 3-D models, click on a part number.
Straight Adapters, Male
Straight Adapter, Male Threaded Pipe
UN/UNF
(SAE Straight) Male
Threads with Gasket
(SAE Straight) Male
Threads with Gasket
- For Use With:
NPT × BSPP: Natural Gas, Water
NPT × BSPT and UN/UNF (SAE Straight) Male × NPT Male: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water - Specifications Met:
NPT × BSPP: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A276, ASTM A479, ISO 228.1, ISO 228.2, ISO BS 2779
NPT × BSPT: ASME B1.20.1, ASME B31.1, ASME B31.3, ISO 7.1, ISO BS2.1
UN/UNF (SAE Straight) Male × NPT Male: ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479, SAE J1926
Thread Size (A) | Dash Size (A) | Pipe Size (B) | Dash Size (B) | Max. Pressure | Max. Steam Pressure | Each | |
UN/UNF (SAE Straight) Male × NPT Male | |||||||
|---|---|---|---|---|---|---|---|
| 3/4"-16 | 08 | 1/2 | 08 | 4,500 psi @ 72° F | 4,500 psi @ 300° F | 000000000 | 000000 |
| 1 1/16"-12 | 12 | 3/4 | 12 | 3,600 psi @ 72° F | 3,600 psi @ 300° F | 000000000 | 00000 |
| 1 5/16"-12 | 18 | 1 | 18 | 2,900 psi @ 72° F | 2,900 psi @ 300° F | 000000000 | 00000 |
Straight Reducing Adapters
- For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
- Specifications Met: ASME B1.20.1, ASME B31.1, ASME B31.3
Pipe Size | Dash Size | 316 Stainless Steel | |||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female × NPT Male | |||||||
| 1/8 | 1/16 | 02 | __ | 6,400 psi @ 72° F | 6,400 psi @ 300° F | 000000000 | 000000 |
| 1/4 | 1/8 | 04 | 02 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 3/8 | 1/8 | 06 | 02 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
| 3/8 | 1/4 | 06 | 04 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 00000000 | 00000 |
| 1/2 | 1/8 | 08 | 02 | 5,200 psi @ 72° F | 5,200 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 1/4 | 08 | 04 | 5,200 psi @ 72° F | 5,200 psi @ 300° F | 00000000 | 00000 |
| 1/2 | 3/8 | 08 | 06 | 5,200 psi @ 72° F | 5,200 psi @ 300° F | 00000000 | 00000 |
| 3/4 | 1/4 | 12 | 04 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 3/8 | 12 | 06 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 1/2 | 12 | 08 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 000000000 | 00000 |
| 1 | 1/4 | 16 | 04 | 4,400 psi @ 72° F | 4,400 psi @ 300° F | 000000000 | 00000 |
| 1 | 1/2 | 16 | 08 | 4,400 psi @ 72° F | 4,400 psi @ 300° F | 000000000 | 00000 |
| 1 | 3/4 | 16 | 12 | 4,400 psi @ 72° F | 4,400 psi @ 300° F | 000000000 | 00000 |
Bushing Straight Reducing Adapters
- For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
- Specifications Met: See table
Pipe Size | Dash Size | 316 Stainless Steel | ||||||
|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPT Male × NPT Female | ||||||||
| 1/8 | 1/16 | 02 | __ | 6,400 psi @ 72° F | 6,400 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1/4 | 1/16 | 04 | __ | 7,500 psi @ 72° F | 7,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1/4 | 1/8 | 04 | 02 | 6,000 psi @ 72° F | 6,000 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 3/8 | 1/8 | 06 | 02 | 6,400 psi @ 72° F | 6,400 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 3/8 | 1/4 | 06 | 04 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1/2 | 1/8 | 08 | 02 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1/2 | 1/4 | 08 | 04 | 6,400 psi @ 72° F | 6,400 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1/2 | 3/8 | 08 | 06 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 3/4 | 1/4 | 12 | 04 | 6,400 psi @ 72° F | 6,400 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 3/4 | 3/8 | 12 | 06 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 3/4 | 1/2 | 12 | 08 | 4,900 psi @ 72° F | 4,900 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1 | 1/4 | 16 | 04 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1 | 3/8 | 16 | 06 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1 | 1/2 | 16 | 08 | 4,900 psi @ 72° F | 4,900 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1 | 3/4 | 16 | 12 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1 1/4 | 1 | 20 | 16 | 4,400 psi @ 72° F | 4,400 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1 1/2 | 1/2 | 24 | 08 | 4,900 psi @ 72° F | 4,900 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479 | 000000000 | 000000 |
| 1 1/2 | 1 | 24 | 16 | 4,400 psi @ 72° F | 4,400 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1 1/2 | 1 1/4 | 24 | 20 | 5,000 psi @ 72° F | 5,000 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
| 2 | 1/2 | 32 | 08 | 4,900 psi @ 72° F | 4,900 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479 | 000000000 | 000000 |
| 2 | 3/4 | 32 | 12 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479 | 000000000 | 000000 |
| 2 | 1 | 32 | 16 | 3,900 psi @ 72° F | 3,900 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
| 2 | 1 1/2 | 32 | 24 | 3,900 psi @ 72° F | 3,900 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
Straight Reducers, Female
- For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
- Specifications Met: ASME B1.20.1, ASME B31.1, ASME B31.3
Pipe Size | Dash Size | 316 Stainless Steel | |||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Female | |||||||
| 1/8 | 1/16 | 02 | __ | 6,400 psi @ 72° F | 6,400 psi @ 300° F | 000000000 | 000000 |
| 1/4 | 1/8 | 04 | 02 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 3/8 | 1/8 | 06 | 02 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
| 3/8 | 1/4 | 06 | 04 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 00000000 | 00000 |
| 1/2 | 1/8 | 08 | 02 | 5,200 psi @ 72° F | 5,200 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 1/4 | 08 | 04 | 5,200 psi @ 72° F | 5,200 psi @ 300° F | 00000000 | 00000 |
| 1/2 | 3/8 | 08 | 06 | 5,200 psi @ 72° F | 5,200 psi @ 300° F | 00000000 | 00000 |
| 3/4 | 1/4 | 12 | 04 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 1/2 | 12 | 08 | 4,600 psi @ 72° F | 4,600 psi @ 300° F | 000000000 | 00000 |
| 1 | 1/2 | 16 | 08 | 4,400 psi @ 72° F | 4,400 psi @ 300° F | 000000000 | 00000 |
| 1 | 3/4 | 16 | 12 | 4,400 psi @ 72° F | 4,400 psi @ 300° F | 000000000 | 00000 |
Straight Reducers, Male
- For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
- Specifications Met: ASME B1.20.1, ASME B31.1, ASME B31.3
Pipe Size | Dash Size | 316 Stainless Steel | |||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Each | |
NPT Male | |||||||
| 1/8 | 1/16 | 02 | __ | 9,100 psi @ 72° F | 9,100 psi @ 300° F | 000000000 | 000000 |
| 1/4 | 1/8 | 04 | 02 | 7,500 psi @ 72° F | 7,500 psi @ 300° F | 00000000 | 00000 |
| 3/8 | 1/8 | 06 | 02 | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 00000000 | 00000 |
| 3/8 | 1/4 | 06 | 04 | 7,200 psi @ 72° F | 7,200 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 1/8 | 08 | 02 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 00000000 | 00000 |
| 1/2 | 1/4 | 08 | 04 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 1/2 | 3/8 | 08 | 06 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 1/4 | 12 | 04 | 7,300 psi @ 72° F | 7,300 psi @ 300° F | 000000000 | 00000 |
| 3/4 | 1/2 | 12 | 08 | 7,300 psi @ 72° F | 7,300 psi @ 300° F | 000000000 | 00000 |
| 1 | 1/2 | 16 | 08 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
| 1 | 3/4 | 16 | 12 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | 000000000 | 00000 |
90° Elbow Reducing Adapters
- For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
- Specifications Met: See table
Pipe Size | Dash Size | 316 Stainless Steel | ||||||
|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (A) | (B) | Max. Pressure | Max. Steam Pressure | Specifications Met | Each | |
NPT Female × NPT Male | ||||||||
| 1/8 | 1/16 | 02 | __ | 6,500 psi @ 72° F | 6,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
| 1/8 | 1/4 | 2 | 4 | 5,500 psi @ 72° F | 5,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1/8 | 3/8 | 2 | 6 | 5,500 psi @ 72° F | 5,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 00000 |
| 1/8 | 1/2 | 2 | 8 | 5,500 psi @ 72° F | 5,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
| 1/4 | 1/8 | 04 | 02 | 6,600 psi @ 72° F | 6,600 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479 | 000000000 | 00000 |
| 1/4 | 3/8 | 4 | 6 | 5,600 psi @ 72° F | 5,600 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
| 1/4 | 1/2 | 4 | 8 | 5,600 psi @ 72° F | 5,600 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
| 3/8 | 1/4 | 06 | 04 | 5,300 psi @ 72° F | 5,300 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479 | 000000000 | 00000 |
| 3/8 | 1/2 | 6 | 8 | 5,000 psi @ 72° F | 5,000 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
| 1/2 | 1/4 | 08 | 04 | 4,900 psi @ 72° F | 4,900 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479 | 000000000 | 00000 |
| 1/2 | 3/8 | 08 | 06 | 4,900 psi @ 72° F | 4,900 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3, ASTM A182, ASTM A276, ASTM A479 | 000000000 | 00000 |
| 1/2 | 3/4 | 08 | 12 | 4,500 psi @ 72° F | 4,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
| 3/4 | 1 | 12 | 16 | 3,500 psi @ 72° F | 3,500 psi @ 300° F | ASME B1.20.1, ASME B31.1, ASME B31.3 | 000000000 | 000000 |
Extended-Life Pressure-Regulating Valves for Cryogenic Liquids
- For Use With: Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen, Liquid Oxygen
- Temperature Range: -320° to 150° F
For a longer service life than standard valves for cryogenic liquids, these have a durable bronze body. All are cleaned and bagged for oxygen service and other high-purity applications. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves are designed to withstand the extreme cold of liquid argon, liquid carbon dioxide, liquid nitrogen, and liquid oxygen. They have an internal strainer to trap debris.
For technical drawings and 3-D models, click on a part number.
Pressure-Regulating Valves for Cryogenic Liquids
- For Use With: Liquid Argon, Liquid Carbon Dioxide, Liquid Nitrogen, Liquid Oxygen
- Temperature Range: -320° to 150° F
These valves can withstand the extreme cold of liquid argon, liquid carbon dioxide, liquid nitrogen, and liquid oxygen. All are cleaned and bagged for oxygen service and other high-purity applications. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range.
For technical drawings and 3-D models, click on a part number.