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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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Low-Pressure Press-Connect Stainless Steel Unthreaded Pipe Fittings
- For Use With:
304 Stainless Steel: Air, Ethylene Glycol, Propylene Glycol, Water, Diesel Fuel, Fuel Oil
316 Stainless Steel: Drinking Water, Isopropyl Alcohol, Nitric Acid (10%), Phosphoric Acid (25%), Deionized Water, Anhydrous Ammonia - Maximum Pressure:
304 Stainless Steel: 125 psi @ 72° F
316 Stainless Steel: 200 psi @ 72° F - Specifications Met:
304 Stainless Steel: ASME B31.1, ASME B31.3, ASME B31.9
316 Stainless Steel: ASME B31.1, ASME B31.3, ASME B31.9, NSF/ANSI 61, NSF/ANSI 372 - O-Ring Material:
304 Stainless Steel: Fluoroelastomer Rubber
316 Stainless Steel: EPDM Rubber - Pipe Nipples and Pipe: Use Schedule 10, 40 Stainless Steel
- Flanges: Use Class 150 Stainless Steel
Press these fittings onto stainless steel pipe using a crimping tool for a permanent, leak-tight connection that's faster than threading or welding and doesn't require heat. Fittings have an internal stainless steel gripping ring and rubber O-ring that create a seal when crimped. They are designed to leak if fittings have not been crimped; a colored dot marks the leak path so it's easy to spot unsealed connections. These fittings are comparable to Viega MegaPress fittings.
Fittings meet ANSI/ASME B31 code requirements for use in pressure piping systems.
316 stainless steel fittings stand up to harsh environments with constant exposure to chemical solutions. They meet NSF/ANSI Standard 61 for use with drinking water, and are often found on water and chemical processing lines in corrosive environments.
Union straight connectors separate into three pieces. Unscrew and remove the center nut for quick access to a line.
For technical drawings and 3-D models, click on a part number.
Crimping tools seal fittings in less than five seconds. These tools are cordless, so you can take them to any job. Connect the jaw or ring that matches your pipe size to these tools, then pull the trigger to crimp the fitting. The pivoting head lets you access connections from any angle.
Battery | |||||||
|---|---|---|---|---|---|---|---|
| Voltage | No. Included | Cap., amp-hrs. | Battery Charger Included | Battery Charging Time, min. | Compatible With | Each | |
| 18V DC | 2 | 3 | Yes | 39 | Viega MegaPress Viega ProPress Viega ProPress XL-C | 00000000 | 000000000 |
Jaw and ring sets include three jaws, three rings, and one ring actuator jaw. Jaws are for pipe sizes 1/2 to 1; they fit directly into the crimping tool. Rings are for pipe sizes 1 1/4 to 2; clip the ring around the fitting and use the ring actuator jaw and crimping tool to press the open ends together.
For Pipe | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Material | For Manufacturer | For Manufacturer Model No. | Compatible With | Includes | Container Type | Each | |
| 1/2, 3/4, 1, 1 1/4, 1 1/2, 2 | Stainless Steel, Steel | Ridgid | RP 340 | Viega MegaPress | One Ring Actuator Jaw Three Jaws (1/2-1 Pipe Size) Three Rings (1 1/4-2 Pipe Size) | Carrying Case | 00000000 | 000000000 |
CPVC Pipe Fittings for Hot Water
Made of CPVC, these fittings can handle high temperatures up to 200° F. They have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing and waste water treatment. They also have good corrosion resistance. These fittings are comparable to Corzan. Some meet ASTM D1784 specifications and testing requirements for material quality.
Fittings for drinking water meet NSF/ANSI Standard 61.
Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.
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 technical drawings and 3-D models, click on a part number.
- For Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Drinking Water, Hydrochloric Acid (25%), Nitric Acid (10%), Phosphoric Acid (85%), Salt Water, Sulfuric Acid (75%), Water
- Maximum Temperature: 200° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 CPVC Plastic
- Flanges: Use Class 150 CPVC Plastic
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a CPVC primer and cement (also known as solvent weld).
Unions separate into three pieces so you can access your line.
| Pipe Size | Socket Depth | Material | O-Ring Material | Schedule | Color | Max. Pressure | Each | |
| 1/4 | 5/8" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 000000 |
| 3/8 | 25/32" | CPVC Plastic | EPDM Rubber | 80 | Light Gray | Not Rated | 00000000 | 00000 |
| 1/2 | 15/16" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 3/4 | 1 1/16" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 1 | 1 3/16" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 1 1/4 | 1 5/16" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 1 1/2 | 1 7/16" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 2 | 1 19/32" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 2 1/2 | 1 3/4" | CPVC Plastic | EPDM Rubber | 80 | Light Gray | Not Rated | 00000000 | 000000 |
| 3 | 1 31/32" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 000000 |
| 4 | 2 1/4" | CPVC Plastic | EPDM Rubber | 80 | Light Gray | Not Rated | 0000000 | 000000 |
| 6 | 3 1/32" | CPVC Plastic | EPDM Rubber | 80 | Light Gray | Not Rated | 0000000 | 000000 |
| Pipe Cement for Max. Pipe Size 6 | 00000000 | Each | 000000 |
- For Use With:
Fittings with EPDM Rubber O-Rings: Drinking Water, Water
All other fittings: Acetic Acid (10%), Calcium Chloride, Deionized Water, Drinking Water, Hydrochloric Acid (25%), Nitric Acid (10%), Phosphoric Acid (85%), Salt Water, Sulfuric Acid (75%), Water - Maximum Temperature: 200° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 CPVC Plastic
- Flanges: Use Class 150 CPVC 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.
Unions separate into three pieces so you can access your line.
| Pipe Size | Material | O-Ring Material | Schedule | Color | Max. Pressure | Each | |
NPT Threads | |||||||
|---|---|---|---|---|---|---|---|
| 3/8 | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 000000 |
| 1/2 | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 3/4 | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 1 | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 1 1/4 | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 1 1/2 | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| 2 | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 0000000 | 00000 |
| Non-Hardening Thread Sealant | 000000 | Each | 000000 |