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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Flame-Retardant PVDF Pipe Fittings for Chemicals
- For Use With: Chlorine, Salt Water, Solvents
- Temperature Range: 40° to 280° F
- Specifications Met: ASTM D3222, UL 94 V-0
- Pipe Nipples and Pipe: Use Schedule 80 PVDF Plastic
- Flanges: Use Class 150 PVDF Plastic
These fittings meet UL 94 V-0 for flame retardance, so they delay the spread of flames to valuable equipment. They are made of PVDF (polyvinylidene fluoride), which is comparable to Kynar, and has the chemical resistance to stand up to solvents and other harsh substances. Also known as Schedule 80 fittings, they have thick walls for heavy duty chemical processing applications. When connecting to pipe, 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 D3222 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.
Unions separate into three pieces, so you can access your line without unthreading pipe connections.
Pipe Size | Material | Color | O-Ring Material | Max. Pressure | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 1/2 | PVDF Plastic | Red | Viton® Fluoroelastomer Rubber | 290 psi @ 72° F | 00000000 | 0000000 |
| 3/4 | PVDF Plastic | Red | Viton® Fluoroelastomer Rubber | 230 psi @ 72° F | 00000000 | 000000 |
| 1 | PVDF Plastic | Red | Viton® Fluoroelastomer Rubber | 210 psi @ 72° F | 00000000 | 000000 |
| 1 1/2 | PVDF Plastic | Red | Viton® Fluoroelastomer Rubber | 160 psi @ 72° F | 00000000 | 000000 |
| 2 | PVDF Plastic | Red | Viton® Fluoroelastomer Rubber | 140 psi @ 72° F | 00000000 | 000000 |
| Non-Hardening Thread Sealant (8-oz. Brush-Top Can) | 000000 | Each | 000000 |
High-Purity PVDF Pipe Fittings for Corrosive Chemicals
Made of PVDF that’s finished to a 12 Ra smoothness, these fittings handle some of the harshest chemicals without leaching contaminants into your line. They won’t accumulate particles and are easy to clean, thanks to their smoothness. Comparable to Kynar, these fittings handle most organic solvents that would dissolve CPVC, and chlorine or nitric acid that would weaken polypropylene. You can use them at higher temperatures than CPVC and polypropylene. These fittings meet UL 94 V-0 and FM standards for flame retardance. They’re also FDA compliant for direct contact with food, and they meet ASTM requirements for dimensions and tolerances.
Connect them to pipe with socket fusion welding for a strong, permanent bond. Use a socket fusion tool with a heater bushing (sold separately) that matches your pipe size.
For technical drawings and 3-D models, click on a part number.
- For Use With: Chlorine, Deionized Water, Hydrochloric Acid, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Solvents
- Temperature Range: -40° to 270° F
- Specifications Met: ASTM D3261, FDA Compliant 21 CFR 177.2510, FM 4910, UL 94 V-0
- Pipe Nipples and Pipe: Use SDR 21 PVDF Plastic
- Flanges: Use PVDF Plastic
Union connectors separate into three pieces, so you can access your line without unthreading pipe connections.
| Pipe Size | Socket Dp. | Material | Color | Max. Pressure | Each | |
| 1/2 | 37/64" | PVDF Plastic | White | 230 psi @ 72° F | 0000000 | 0000000 |
| 3/4 | 5/8" | PVDF Plastic | White | 230 psi @ 72° F | 0000000 | 000000 |
| 1 | 45/64" | PVDF Plastic | White | 230 psi @ 72° F | 0000000 | 000000 |
| 1 1/2 | 59/64" | PVDF Plastic | White | 230 psi @ 72° F | 0000000 | 000000 |
| 2 | 1 5/64" | PVDF Plastic | White | 230 psi @ 72° F | 0000000 | 000000 |
- For Use With: Chlorine, Deionized Water, Hydrochloric Acid, Nitric Acid, Oil, Phosphoric Acid, Salt Water, Solvents
- Temperature Range: -40° to 270° F
- Specifications Met: ASTM D3222, FDA Compliant 21 CFR 177.2510, FM 4910, UL 94 V-0
- Seal Material: Viton® Fluoroelastomer Rubber
- Seat Material: PTFE Plastic
Add a ball valve to control the flow in your line.
| Pipe Size | Flow Coefficient (Cv) | Vacuum Rating, in. of Hg | Port Type | End-to-End Lg. | Color | Max. Pressure | Each | |
PVDF Plastic | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/2 | 12.5 | 29.92 | Full | 3 13/16" | White | 230 psi @ 72° F | 0000000 | 0000000 |
| 3/4 | 28 | 29.92 | Full | 4 9/32" | White | 230 psi @ 72° F | 0000000 | 000000 |
| 1 | 50.9 | 29.92 | Full | 4 23/32" | White | 230 psi @ 72° F | 0000000 | 000000 |
| 1 1/2 | 150 | 29.92 | Full | 6 1/16" | White | 230 psi @ 72° F | 0000000 | 00000000 |
| 2 | 230 | 29.92 | Full | 6 13/16" | White | 230 psi @ 72° F | 0000000 | 00000000 |
| Includes | Each | |
| 5 Bushing Sets (1 each in 1/2, 3/4, 1, 1 1/2, and 2 Pipe Sizes) | 00000000 | 0000000 |
