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 Iron and Steel Threaded Pipe Fittings
Use these fittings for low-pressure applications in noncorrosive environments.
Connectors with NPT threads are threaded on both ends.
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Specifications Met: ASME B16.3, UL Listed, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 40 steel
| Pipe Size  | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
|---|---|---|---|---|---|
| 4 | 150 psi @ 72° F | 150 psi @ 350° F | Iron | 000000000 | 0000000 |
Low-Pressure Galvanized Iron and Steel Threaded Pipe Fittings
The galvanized finish on these fittings provides fair corrosion resistance. Fittings are for use in low-pressure applications.
- Pressure Class: 150
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Specifications Met: ASTM A197, UL Listed, ASME B16.3, ASME B1.20.1
- Pipe Nipples and Pipe: Use Schedule 40 galvanized steel
- Flanges: Use Class 150 galvanized steel
| Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
|---|---|---|---|---|---|
| 4 | 150 psi @ 72° F | 150 psi @ 350° F | Galvanized Iron | 00000000 | 0000000 |
Drain, Waste, and Vent Iron Pipe Fittings
Use these fittings in gravity-flow applications both above and below ground. They are also known as no-hub pipe fittings and soil pipe fittings. To connect, place the end of the fitting against your pipe or another fitting and connect with a low-pressure clamp-on connector (sold separately). The clamp-on connector is also known as a no-hub coupling. Fittings are for use in noncorrosive environments.
- For Use With: Water
- Specifications Met: ASTM A888, CISPI 301
| Pipe Size | Each | |
| 4 | 0000000 | 000000 |
- For Use With: Water
- Temperature Range: 0° to 180° F
- Specifications Met: ASTM A666, ASTM C564
- For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
| For Pipe Size | Lg. | Max. Pressure | Material | Sleeve Material | Each | |
| 4 | 3" | 15 psi @ 72° F | 304 Stainless Steel | Neoprene Rubber | 0000000 | 000000 |
- For Use With: Water
- Temperature Range: 0° to 180° F
- Specifications Met: ASTM A666, ASTM C564
- For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
- For Tube Material: Copper
| For Pipe Size | For Copper Tube Size | Lg. | Max. Pressure | Material | Sleeve Material | Each | |
| 4 | 4 | 3" | 15 psi @ 72° F | 304 Stainless Steel | Neoprene Rubber | 0000000 | 000000 |
- For Use With: Water
- Temperature Range: 0° to 180° F
- Specifications Met: ASTM A666, ASTM C564
- For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
For Pipe Size | |||||||
|---|---|---|---|---|---|---|---|
| (A) | (B) | Lg. | Max. Pressure | Material | Sleeve Material | Each | |
| 4 | 3 | 3" | 15 psi @ 72° F | 304 Stainless Steel | Neoprene Rubber | 0000000 | 000000 |
Standard-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 40 plastic pipe–they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.
Fittings for drinking water meet NSF/ANSI Standard 61.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
Fittings that meet ASTM D1784, ASTM D1785, and ASTM D4066 adhere to specifications and testing requirements for material quality.
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.
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
| Pipe Size | Socket Depth | Material | Color | Each | |
| 4 | 2 1/32" | PVC Plastic | White | 00000000 | 000000 |
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D1785, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
| Pipe Size | Socket Depth | Material | Color | Each | |
| 4 | 2 1/4" | PVC Plastic | White | 00000000 | 0000000 |
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
Thick-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 80 pipe. With thicker, stronger walls than standard-wall fittings, they can handle heavy duty supply applications, such as water processing, wastewater treatment, and irrigation. Fittings are plastic for good corrosion resistance. They meet ASTM specifications and testing requirements for material quality.
Fittings for drinking water meet NSF/ANSI Standard 61.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
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.
For technical drawings and 3-D models, click on a part number.
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
| Pipe Size | Socket Depth | Material | Color | Each | |
| 4 | 2 1/4" | PVC Plastic | Dark Gray | 00000000 | 0000000 |
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
| Pipe Size | Socket Depth | Material | Color | Each | |
| 4 | 2 1/4" | PVC Plastic | Dark Gray | 00000000 | 000000000 |
- For Use With: Drinking Water, Water
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
CPVC Pipe Fittings for Hot Water
Made of CPVC, these fittings can handle high temperatures. 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.
Schedule 80 fittings have thick, strong walls for heavy duty, industrial applications.
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.
- For Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Drinking Water, Hydrochloric Acid (25%), Phosphoric Acid (85%), Salt Water, Sodium Hydroxide (50%), 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).
| Pipe Size | Socket Depth | Material | Schedule | Color | Max. Pressure | Each | |
| 4 | 2 9/32" | CPVC Plastic | 80 | Light Gray | Not Rated | 00000000 | 0000000 |
Aboveground Standard-Wall PVC Pipe Fittings for Drain, Waste, and Vent
- For Use With: Water
- Max. Temperature: 140° F
- Specifications Met: ASTM D1784, ASTM D2665
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Schedule 40 PVC Plastic
These Schedule 40 fittings are the industry standard for gravity-flow drain, waste, and vent (DWV) applications. Fittings are PVC, which has good corrosion resistance. They meet ASTM D1784 and ASTM D2665 specifications and testing requirements for material quality.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
Warning: Never use plastic pipe fittings and pipe with compressed air or gas.
Underground Snap-Lock Polyethylene Pipe Fittings for Drain, Waste, and Vent
- For Use With: Water
- Specifications Met: ASTM F667
The snap-together design allows you to quickly connect these fittings to pipe with no cement required. Fittings are typically used in gravity-flow drainage applications. Made of high-density polyethylene (HDPE), they stand up to freeze/thaw cycles and resist corrosion and stress cracking. Fittings meet ASTM F667 specifications and testing requirements for material quality as well as soil conservation service (SCS) standards for use in underground drain lines.
Warning: Never use plastic pipe fittings and pipe with compressed air or gas. Do not expose fittings to direct sunlight.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Material | Color | Each | |
| 4 | Polyethylene Plastic | Black | 000000000 | 000000 |
Drain, Waste, and Vent ABS Pipe Fittings for Chemicals
These Schedule 40 fittings are an economical option for gravity-flow chemical waste systems. They are ABS plastic, which has excellent strength and impact resistance and good chemical resistance. Fittings meet ASTM D2661, ASTM D3311, ASTM D3965, and ASTM F1498 specifications and testing requirements for material quality and product dimensions.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with ABS cement (also known as solvent weld).
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: Sodium Hydroxide
- Maximum Temperature: 180° F
- Specifications Met: ASTM D2661, ASTM D3311, ASTM D3965, ASTM F1498
- Pipe Nipples and Pipe: Use Schedule 40 ABS Plastic
- Flanges: Use Schedule 40 ABS Plastic
- For Use With: Sodium Hydroxide
- Maximum Temperature: 180° F
- Specifications Met: ASTM D2661, ASTM D3311, ASTM D3965, ASTM F1498
- Pipe Nipples and Pipe: Use Schedule 40 ABS Plastic
- Flanges: Use Schedule 40 ABS Plastic
Gravity-Flow Polypropylene Pipe Fittings for Corrosive Chemical Waste
- For Use With: Deionized Water, Hydrochloric Acid, Oil, Phosphoric Acid, Salt Water, Solvents
- Maximum Temperature: 220° F
- Specifications Met: ASTM D4101, ASTM D635, ASTM F1412, UL 94 V-2
- Compatible with Gravity-Flow Polypropylene Pipe for Corrosive Chemical Waste
Made of polypropylene, these gravity-flow fittings withstand organic solvents, such as acetone, that would dissolve CPVC pipe. They also stand up to highly corrosive acids, such as hydrochloric acid, and alkalies. All meet UL and ASTM standards for flame retardance and self-extinguishment in the case of fire. They also meet strict ASTM specifications and testing requirements for material quality and product dimensions. They’re compatible with Orion Blueline No-Hub and Orion Rionfuse chemical waste pipe and pipe fittings.
For technical drawings and 3-D models, click on a part number.
Low-Pressure Clamp-On Connectors for Drain, Waste, and Vent
To make installing and maintaining systems easy, these connectors come with clamps that form a strong seal on pipe and fittings once tightened.
Saddle-tap adapters allow you to tap into an existing pipeline. They have wraparound clamps that provide nearly 360° contact with pipe; as the clamps are tightened, pressure is uniformly distributed around the pipe for maximum support. To install, shut down your line and drill a hole in the pipe where you want to create a connection. Position the saddle over the hole and tighten the clamps.
- For Use With: Air, Water
- Temperature Range: 0° to 110° F
- For Pipe Material: PVC Plastic
For Pipe Size | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | For Hole Dia. | Lg. | Material | Clamp Material | Torque, in.-lbs. | Flexibility | Each | |
| 4 | 6 to 12 | 4 1/8" | 10 1/2" | PVC Plastic | 300 Series Stainless Steel | 60 | Flexible | 00000000 | 000000 |
PVC Y-Strainers
- For Use With:
Dark Gray: Water and Diesel Fuel
Clear: Water - Max. Pressure: 150 psi @ 70° F
- Temp. Range:
Dark Gray: 40° to 140° F
Clear: 40° to 120° F
PVC construction is lightweight and provides excellent corrosion resistance. Install them prior to valves, pumps, and nozzles to catch debris in your pipeline and protect sensitive equipment. Strainers have a threaded drain with a hex cap or plug that provides access to the screen without disconnecting your line.
Strainers with socket-connect pipe connections attach to unthreaded pipe with cement for a permanent, leak-tight connection.
Strainers | Replacement Screens | Replacement Caps | Replacement Gaskets | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Thread Type | Lg. | Ht. | For Fitting Schedule | For Pipe Schedule | Features | Choose a Screen Opening Size | Each | Each | Each | Each | ||||
Dark Gray Strainer with PVC Plastic Screen | |||||||||||||||
| 4 | NPT | 12 13/16" | 11 3/4" | 80 | 80 | Threaded Drain with Hex Cap | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 000000 | |
Strainers | Replacement Screens | Replacement Caps | Replacement Gaskets | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Socket Connect Type | Lg. | Ht. | For Fitting Schedule | For Pipe Schedule | Features | Choose a Screen Opening Size | Each | Each | Each | Each | ||||
Dark Gray Strainer with PVC Plastic Screen | |||||||||||||||
| 4 | Cement | 12 13/16" | 11 3/4" | 80 | 80 | Threaded Drain with Hex Cap | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 000000 | |
Screens for PVC Y-Strainers
CPVC Y-Strainers
- Max. Pressure for Water and Diesel Fuel: 150 psi @ 70° F
- Temp. Range: 40° to 190° F
Made of CPVC, these lightweight strainers have excellent corrosion resistance and withstand higher temperatures than all of our other plastic Y-strainers. They trap debris in your pipeline before it can enter sensitive equipment such as valves, pumps, and nozzles. Strainers have a threaded drain with a hex cap that provides access to the screen without disconnecting your line.
Strainers with socket-connect pipe connections attach to unthreaded pipe with cement for a permanent, leak-tight connection.
Low-Pressure Iron Y-Strainers
A rugged iron body provides excellent strength and durability. Strainers prevent damage to valves, pumps, nozzles, and other sensitive equipment by catching debris in your pipeline. They are designed for low-pressure applications. Strainers are for use in noncorrosive environments. They have a threaded drain with a plug that provides access to the screen without disconnecting your line.
Strainers with flanged pipe connections allow for easy access to your pipeline; bolt them to a flange with the same pipe size.
For technical drawings and 3-D models, click on a part number.
Screens for Low-Pressure Iron Y-Strainers
Mesh screens typically filter smaller particles than perforated screens. To replace your screen, measure the OD and length and find the corresponding screen listed in the table.