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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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About Backflow-Prevention Valves
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Low-Pressure Iron and Steel Threaded Pipe Fittings
Use these fittings for low-pressure applications in noncorrosive environments.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Class: 150
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B16.3, UL Listed
- Pipe Nipples and Pipe: Use Schedule 40 steel
| Pipe Size | Max. Pressure | Max. Steam Pressure | Material | Each | |
NPT Female | |||||
|---|---|---|---|---|---|
| 3 | 150 psi @ 72° F | 150 psi @ 350° F | Black-Coated 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.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Steam, Oil, Water, Natural Gas
- Class: 150
- Specifications Met: ASTM A197, UL Listed, ANSI/ASME B16.3, ANSI/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 | |||||
|---|---|---|---|---|---|
| 3 | 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 technical drawings and 3-D models, click on a part number.
- For Use With: Water
- Specifications Met: ASTM A888, CISPI 301
| Pipe Size | Each | |
| 3 | 0000000 | 000000 |
- For Use With: Water
- Temperature Range: 0° to 180° F
- Specifications Met: ASTM C564, ICC-ES Standards, ASTM A666
- For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
| For Pipe Size | Lg. | Max. Pressure | Material | Sleeve Material | Each | |
| 3 | 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 C564, ICC-ES Standards, ASTM A666
- 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 | |
| 3 | 3 | 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 C564, ICC-ES Standards, ASTM A666
- For Pipe Material: Aluminum, Iron, Steel, Stainless Steel, PVC Plastic
Low-Pressure Brass and Bronze Threaded Pipe Fittings
Use these fittings in low-pressure flow applications. They have good corrosion resistance. Fittings rated for use with drinking water meet NSF/ANSI 61 safety standards.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Drinking Water, Natural Gas, Oil
- Class: 125
- Specifications Met: ANSI/ASME B1.20.1, ANSI/ASME B16.15, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 40 brass
- Flanges: Use Class 150 brass
| Pipe Size | Max. Pressure | Material | Each | |
NPT Female | ||||
|---|---|---|---|---|
| 3 | 200 psi @ 72° F | Brass | 00000000 | 0000000 |
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 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 40 PVC Plastic
- Flanges: Use Schedule 40 PVC Plastic
- 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 Schedule 40 PVC Plastic
- 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 Schedule 40 PVC Plastic
Thick-Wall Plastic Pipe Fittings for Water
Connect these fittings to Schedule 80 pipe–they have thicker, stronger walls than standard-wall fittings so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. Fittings are plastic for good corrosion resistance. They meet ASTM D1784 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 | |
| 3 | 1 7/8" | 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 | |
| 3 | 1 7/8" | 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
| Type | Each | |
| Cement Adhesive for 6" Maximum Pipe Dia. | 00000000 | 00000 |
CPVC Pipe Fittings for Hot Water
Made of CPVC, these fittings can handle high temperatures up to 200° F. They connect to Schedule 80 pipe and have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing and waste water treatment. Fittings have good corrosion resistance. They meet ASTM D1784 specifications and testing requirements for material quality. They are comparable to Corzan.
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.
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%), 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).
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.
For technical drawings and 3-D models, click on a part number.
Offset tees are also known as sanitary tees and eccentric tees. They have an offset branch so the line can drain. Use them for applications that require frequent cleaning and inspecting. Long offset tees are also known as long radius wyes.
Underground Snap-Lock Polyethylene
Pipe Fittings for Drain, Waste, and Vent
- For Use With: Water
- Specifications Met: ASTM F667, Soil Conservation Service Standards
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.
Elbows, tees, and wyes are corrugated inside and out, so they’re slightly bendable.
| Pipe Size | Socket Dp. | Material | Color | Each | |
| 3 | 2" | Polyethylene Plastic | Black | 00000000 | 000000 |
Drain, Waste, and Vent ABS Pipe Fittings for Chemicals
- For Use With: Sodium Hydroxide
- Max. 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
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.
For technical drawings and 3-D models, click on a part number.
Offset tees are also known as sanitary tees and eccentric tees. They have an offset branch so the line can drain. Use them for applications that require frequent cleaning and inspecting. Long offset tees are also known as long radius wyes.
Medium-Pressure Bronze and Brass Y-Strainers
- Max. Pressure: See Table
- Max. Steam Pressure:
Brass: Not Rated
Bronze: 235 psi @ 400° F - Temp. Range:
Brass: 35° to 350° F
Bronze: -20° to 400° F
Strainers catch debris in your pipeline, preventing damage to valves, pumps, nozzles, and other sensitive equipment. They are designed for medium-pressure applications. Strainers have a threaded drain with a plug that provides access to the screen without disconnecting your line. They have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
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.
For technical drawings and 3-D models, click on a part number.
Medium-Pressure Iron and Steel Y-Strainers
- Max. Pressure for Water, Oil, and Inert Gas:
Iron: 600 psi @ 100° F
Steel: 700 psi @ 100° F
Max. Pressure for Steam:
Iron: 450 psi @ 650° F
Steel: 300 psi @ 400° F - Temp. Range:
Iron: -20° to 650° F
Steel: -20° to 400° F
Made of rugged iron or steel, these strainers provide excellent strength and durability. Install them prior to valves, pumps, and nozzles to protect sensitive equipment from damage caused by debris. They are designed for medium-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.
For technical drawings and 3-D models, click on a part number.
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.
For technical drawings and 3-D models, click on a part number.
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 | |||||||||||||||
| 3 | NPT | 10 5/16" | 9 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 | |||||||||||||||
| 3 | Cement | 10 5/16" | 9 3/4" | 80 | 80 | Threaded Drain with Hex Cap | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 0000000 | 000000 | |
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.
For technical drawings and 3-D models, click on a part number.
Low-Pressure Stainless Steel Y-Strainers
- Max. Pressure for Water, Oil, Inert Gas, Acetone, and Diesel Fuel: 275 psi @ 70° F
Max. Pressure for Steam: 150 psi @ 550° F - Temp. Range:
-20° to 550° F
Made of 316 stainless steel, these strainers have excellent corrosion resistance. They trap debris in your pipeline before it can damage sensitive equipment such as valves, pumps, and nozzles. They are designed for low-pressure applications. Strainers have a threaded drain with a plug that provides access to the screen without disconnecting your line. To connect, bolt strainers to a flange with the same pipe size.
For technical drawings and 3-D models, click on a part number.
High-Flow Threaded Check Valves
To achieve the maximum possible flow, internal components are designed to reduce flow resistance. These valves open to allow flow in one direction and close when flow stops or reverses. A removable cap provides easy access to internal components for maintenance.
Repair kits include everything you need to rebuild the valve.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Argon, Helium, Krypton, Neon, Steam, Water, Xenon
- Disc Material: See table
- Seal Material: See table
Valves | Repair Kits | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flow Coefficient (Cv) | Max. Pressure | Max. Steam Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Disc Material | Seal Material | End-to-End Lg. | Features | Each | Each | ||
NPT Female × NPT Female—200 Pressure Class | |||||||||||||
| 3 | 240 | 400 psi @ 150° F | 200 psi @ 388° F | 0.5 | -20° to 550° | Bronze | Bronze | 7 7/8" | Removable Cap | 0000000 | 0000000 | 00000000 | 000000000 |
NPT Female × NPT Female—300 Pressure Class | |||||||||||||
| 3 | 240 | 600 psi @ 150° F | 300 psi @ 422° F | 0.5 | -20° to 550° | Bronze | Bronze | 7 7/8" | Removable Cap | 0000000 | 00000000 | 00000000 | 00000000 |
Clear-View Socket-Connect Check Valves
- For Use With: Air, Water
- Piston Material: PVC Plastic
- Seal Material: EPDM Rubber
Visually inspect flow and debris accumulation through the transparent valve body. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves open to allow flow in one direction and close when flow stops or reverses. They have a removable cap that provides easy access to internal components for maintenance.
Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | For Pipe Schedule | Flow Coefficient (Cv) | Max. Pressure | Min. Opening Pressure, psi | Temperature Range, °F | Color | End-to-End Lg. | Features | Each | |
PVC Plastic Body | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Socket Connect × Socket Connect | ||||||||||
| 3 | 40, 80 | 168 | 150 psi @ 70° F | 0.29 | 35° to 140° | Clear | 12 1/4" | Removable Cap | 0000000 | 0000000 |