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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Thick-Wall Plastic Pipe for Water
With thicker, stronger walls than standard-wall pipe, this Schedule 80 pipe can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. It’s made of PVC, which has good corrosion resistance. Pipe meets ASTM D1784 and ASTM D1785 specifications and testing requirements for material quality.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
- For Use With: Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D1785
- Fittings: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
To prevent leaks in threaded connections, apply a non-hardening, plastic-compatible sealant to the male threads. 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.
Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.
Pipe Size | Lg. | OD | ID | Wall Thick. | Max. Pressure | Each | |
NPT Threads | |||||||
|---|---|---|---|---|---|---|---|
| 1/4 | 7/8" | 35/64" | 0.302" | 0.119" | 565 psi @ 72° F | 0000000 | 00000 |
| 3/8 | 1" | 43/64" | 0.423" | 0.126" | 460 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 1 1/8" | 27/32" | 0.546" | 0.147" | 420 psi @ 72° F | 0000000 | 0000 |
| 3/4 | 1 3/8" | 1 3/64" | 0.742" | 0.154" | 340 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/2" | 1 5/16" | 0.957" | 0.179" | 315 psi @ 72° F | 0000000 | 0000 |
| 1 1/4 | 1 5/8" | 1 21/32" | 1.278" | 0.191" | 260 psi @ 72° F | 0000000 | 0000 |
| 1 1/2 | 1 3/4" | 1 29/32" | 1.5" | 0.2" | 235 psi @ 72° F | 0000000 | 0000 |
| 2 | 2" | 2 3/8" | 1.939" | 0.218" | 200 psi @ 72° F | 0000000 | 0000 |
| 2 1/2 | 2 1/2" | 2 7/8" | 2.323" | 0.276" | 210 psi @ 72° F | 00000000 | 0000 |
| 3 | 2 5/8" | 3 1/2" | 2.9" | 0.3" | 185 psi @ 72° F | 0000000 | 00000 |
| 4 | 2 7/8" | 4 1/2" | 3.826" | 0.337" | 160 psi @ 72° F | 00000000 | 00000 |
| 6 | 3 1/8" | 6 5/8" | 5.761" | 0.432" | 140 psi @ 72° F | 00000000 | 00000 |
| Non-Hardening Thread Sealant | 000000 | Each | 000000 |
Clear-View Thick-Wall Plastic Pipe for Water
See what’s flowing through your line with this clear pipe. Since it’s Schedule 80, this pipe has thicker, stronger walls than standard-wall pipe, so you can use it for heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. It’s made of PVC, which has good corrosion resistance. This pipe meets ASTM D1784 and ASTM D1785 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 Use With: Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D1785
- Fittings: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
To prevent leaks in threaded connections, apply a non-hardening, plastic-compatible sealant to the male threads. 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 for one to two turns.
Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.
| Pipe Size | Lg. | OD | ID | Wall Thick. | Max. Pressure | Each | |
NPT Threads | |||||||
|---|---|---|---|---|---|---|---|
| 1/2 | 1 1/8" | 27/32" | 0.546" | 0.147" | 210 psi @ 72° F | 0000000 | 00000 |
| 3/4 | 1 3/8" | 1 3/64" | 0.742" | 0.154" | 170 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/2" | 1 5/16" | 0.957" | 0.179" | 160 psi @ 72° F | 0000000 | 0000 |
| 1 1/2 | 1 3/4" | 1 29/32" | 1.5" | 0.2" | 120 psi @ 72° F | 0000000 | 00000 |
| 2 | 2" | 2 3/8" | 1.939" | 0.218" | 100 psi @ 72° F | 0000000 | 00000 |
| 3 | 2 5/8" | 3 1/2" | 2.9" | 0.3" | 95 psi @ 72° F | 0000000 | 00000 |
| 4 | 2 7/8" | 4 1/2" | 3.826" | 0.337" | 80 psi @ 72° F | 0000000 | 00000 |
| Non-Hardening Thread Sealant | 000000 | Each | 000000 |
CPVC Pipe for Hot Water
Made of CPVC, this pipe can withstand high temperatures up to 170° or 200° F. It meets NSF/ANSI Standard 61 for drinking water. Also known as Schedule 80 pipe, it has thick, strong walls for use in heavy duty industrial plumbing and water supply applications, such as water processing and waste water treatment. Pipe has good corrosion resistance. It is comparable to Corzan.
Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.
ASTM D1784 pipe meets 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 regulatory limits on VOCs (Volatile Organic Compounds).
- For Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Drinking Water, Hydrochloric Acid (25%), Nitric Acid (10%), Phosphoric Acid (85%), Salt Water, Sodium Hydroxide (50%), Sulfuric Acid (75%), Water
- Maximum Temperature: 200° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Fittings: Use Schedule 80 CPVC plastic
- Flanges: Use Class 150 CPVC plastic
| Pipe Size | Lg. | OD | ID | Wall Thick. | Color | Max. Pressure | Each | |
NPT Threads | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4 | 7/8" | 35/64" | 0.302" | 0.119" | Light Gray | 565 psi @ 72° F | 00000000 | 00000 |
| 3/8 | 1" | 43/64" | 0.423" | 0.126" | Light Gray | 460 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 1 1/8" | 27/32" | 0.546" | 0.147" | Light Gray | 420 psi @ 72° F | 0000000 | 0000 |
| 3/4 | 1 3/8" | 1 3/64" | 0.742" | 0.154" | Light Gray | 340 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/2" | 1 5/16" | 0.957" | 0.179" | Light Gray | 315 psi @ 72° F | 0000000 | 0000 |
| 1 1/4 | 1 5/8" | 1 21/32" | 1.278" | 0.191" | Light Gray | 260 psi @ 72° F | 0000000 | 0000 |
| 1 1/2 | 1 3/4" | 1 29/32" | 1.5" | 0.2" | Light Gray | 235 psi @ 72° F | 0000000 | 0000 |
| 2 | 2" | 2 3/8" | 1.939" | 0.218" | Light Gray | 200 psi @ 72° F | 0000000 | 0000 |
| 2 1/2 | 2 1/2" | 2 7/8" | 2.323" | 0.276" | Light Gray | 210 psi @ 72° F | 0000000 | 00000 |
| 3 | 2 5/8" | 3 1/2" | 2.9" | 0.3" | Light Gray | 185 psi @ 72° F | 0000000 | 00000 |
| 4 | 2 7/8" | 4 1/2" | 3.826" | 0.337" | Light Gray | 160 psi @ 72° F | 0000000 | 00000 |
| Non-Hardening Thread Sealant | 000000 | Each | 000000 |
High-Temperature PTFE Pipe Nipples and Pipe for Chemicals
- For Use With: Deionized Water, Hydrochloric Acid, Solvents
- Temperature Range: -450° to 550° F
- Specifications Met: ASTM D1710
- Fittings: Use Schedule 80 PTFE Plastic
- Flanges: Use Class 150 PTFE Plastic
This PTFE pipe can withstand a wider temperature range than any of our other plastic pipe for chemicals. It has the chemical resistance to stand up to acid and solvents. Also known as Schedule 80 pipe, it has thick walls for heavy duty industrial applications. The material won’t leach contaminates into the line, so this pipe is commonly used in high-purity processes, such as semiconductor and clean room applications. It has a super-smooth interior for unrestricted flow. Pipe meets 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.
To prevent leaks in threaded connections, apply a non-hardening, plastic-compatible sealant to the male threads. 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.
Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.
| Pipe Size | OD | ID | Wall Thick. | Material | Color | Max. Pressure | Each | |
NPT Threads | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8 | 13/32" | 0.215" | 0.095" | PTFE Plastic | White | 110 psi @ 72° F | 000000000 | 000000 |
| 1/4 | 35/64" | 0.302" | 0.119" | PTFE Plastic | White | 90 psi @ 72° F | 000000000 | 00000 |
| 3/8 | 43/64" | 0.423" | 0.126" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 1/2 | 27/32" | 0.546" | 0.147" | PTFE Plastic | White | 60 psi @ 72° F | 000000000 | 00000 |
| 3/4 | 1 3/64" | 0.742" | 0.154" | PTFE Plastic | White | 50 psi @ 72° F | 000000000 | 00000 |
| 1 | 1 5/16" | 0.957" | 0.179" | PTFE Plastic | White | 35 psi @ 72° F | 000000000 | 00000 |
| Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |