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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Extreme-Pressure Steel Threaded Pipe Fittings
The strongest steel fittings we offer, these can withstand extreme-pressure applications. PTFE-coated steel fittings have better corrosion resistance than galvanized and zinc-plated steel fittings.
Plugs with a 7/8" taper sit flush to the surface for a low profile.
NPTF (Dryseal) threads are compatible with NPT threads.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Hydraulic Fluid, Natural Gas, Oil, Steam, Water
- Temperature Range: -100° to 450° F
- Specifications Met: ASTM A574, ASME B1.20.3
- Pipe Nipples and Pipe: Use Schedule XXH steel
- Flanges: Use Class 1500 steel
High-Temperature PTFE Pipe Fittings for Chemicals
Extreme temperatures are no problem for these fittings—they’re made of PTFE, so they can withstand a wider temperature range than any of our other plastic pipe fittings for chemicals. They have the chemical resistance to stand up to acid and solvents. Fittings have thick, Schedule 80 walls for heavy duty industrial applications. The material won’t leach contaminates into the line, so these fittings are commonly used in high-purity processes, such as semiconductor and clean room applications. They have a super-smooth interior for unrestricted flow. Apply a non-hardening, plastic-compatible sealant to the male threads to prevent leaks. Tape or sealants with PTFE are not recommended for plastic-to-plastic threaded connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns. Fittings meet ASTM D1710 specifications and testing requirements for material quality.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.
- For Use With: Deionized Water, Hydrochloric Acid, Solvents
- Temperature Range: -450° to 550° F
- Specifications Met: ASTM D1710
- Pipe Nipples and Pipe: Use Schedule 80 PTFE Plastic
- Flanges: Use Class 150 PTFE Plastic
Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | |||||
|---|---|---|---|---|---|
| 1/8 | PTFE Plastic | White | 110 psi @ 72° F | 000000000 | 000000 |
| 1/4 | PTFE Plastic | White | 90 psi @ 72° F | 000000000 | 00000 |
| 3/8 | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 1/2 | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 3/4 | PTFE Plastic | White | 50 psi @ 72° F | 000000000 | 00000 |
| 1 | PTFE Plastic | White | 35 psi @ 72° F | 000000000 | 000000 |
| Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |
- For Use With: Deionized Water, Hydrochloric Acid, Solvents
- Temperature Range: -450° to 550° F
- Specifications Met: ASTM D1710
- Pipe Nipples and Pipe: Use Schedule 80 PTFE Plastic
- Flanges: Use Class 150 PTFE Plastic
| Pipe Size | Material | Color | Max. Pressure | Each | |
NPT Threads | |||||
|---|---|---|---|---|---|
| 1/8 | PTFE Plastic | White | 110 psi @ 72° F | 000000000 | 000000 |
| 1/4 | PTFE Plastic | White | 90 psi @ 72° F | 000000000 | 00000 |
| 3/8 | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 1/2 | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 3/4 | PTFE Plastic | White | 50 psi @ 72° F | 000000000 | 00000 |
| 1 | PTFE Plastic | White | 35 psi @ 72° F | 000000000 | 00000 |
| Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |
Drum Plugs
For installation and removal of these plugs, use drum-plug wrenches.
Plugs with PTFE seals stand up to corrosive chemicals such as nitric acid.
For technical drawings and 3-D models, click on a part number.
Chemical-Resistant PTFE Gaskets for Gasket Tube Fittings
These gaskets are made of PTFE, which is chemically inert (except to molten alkali metal and elemental fluorine). Use them to seal gasket tube fittings for stainless steel tubing. They’re 3-A certified to meet industry approved sanitary design standards.
For technical drawings and 3-D models, click on a part number.
| For Tube OD | ID | OD | Thick. | Temp. Range, ° F | Hardness | Hardness Rating | Color | Specifications Met | Each | |
| 1" | 0.900" | 1.325" | 0.3" | -100° to 500° | Durometer 68D | Extra Hard | White | 3-A Certified 20-27 | 0000000 | 00000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.33" | -100° to 500° | Durometer 68D | Extra Hard | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 2" | 1.850" | 2 3/8" | 0.35" | -100° to 500° | Durometer 68D | Extra Hard | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 2 1/2" | 2.340" | 2.950" | 0.35" | -100° to 500° | Durometer 68D | Extra Hard | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 3" | 2 7/8" | 3.475" | 0.35" | -100° to 500° | Durometer 68D | Extra Hard | White | 3-A Certified 20-27 | 0000000 | 0000 |
| 4" | 3.700" | 4 1/2" | 0.33" | -100° to 500° | Durometer 68D | Extra Hard | White | 3-A Certified 20-27 | 0000000 | 0000 |
Ultra-Chemical-Resistant Metal-Detectable
PTFE Gaskets for Gasket Tube Fittings
Made from a blend of PTFE and 316 stainless steel, these gaskets stand up to the harsh chemicals and high pressures and temperatures used in sanitary processes. They’ll set off metal detectors if any part of them falls into your line, so you can stop contaminated material from leaving your facility. This helps you comply with Hazard Analysis and Critical Control Point (HACCP) programs. Use these gaskets with high-polish gasket fittings (also called bevel seat fittings) for a more secure seal than quick-clamp sanitary tube fittings.
These gaskets are more durable and last longer than standard PTFE seals. Hot oil, steam, and harsh cleaners won’t warp or deform them, preventing leaks. They’re also chemically inert, so they won’t contaminate your line by absorbing and leaching substances, unless you use molten alkali metal or elemental fluorine. Use them where purity is necessary, such as in food, pharmaceutical, or biotech facilities.
With an extremely smooth interior, these gaskets are easy to clean and leave minimal places for bacteria to grow. To minimize safety risks, they are Animal Derived Ingredient (ADI) free, meaning they’re made without animal products, and are FDA compliant for direct contact with food. Meeting the highest sanitary design standards, these gaskets are 3-A and USP VI certified. They’re also tested to USP 87 standards, which are created by the United States Pharmacopoeia (USP) for safety in biological applications.
For technical drawings and 3-D models, click on a part number.
| For Tube OD | ID | OD | Thick. | Temp. Range, °F | Hardness | Hardness Rating | Color | Specifications Met | Each | |
| 1" | 0.900" | 1.325" | 0.32" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 000000 |
| 1 1/2" | 1 3/8" | 1 7/8" | 0.32" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 2" | 1.850" | 2 3/8" | 0.32" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 2 1/2" | 2.340" | 2.950" | 0.32" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 3" | 2 7/8" | 3.475" | 0.32" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |
| 4" | 3.700" | 4 1/2" | 0.32" | -350° to 550° | Durometer 68D | Extra Hard | Gray | 3-A Certified 20-27, FDA Compliant 21 CFR 177.1550, USP VI Certified | 0000000 | 00000 |