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 Steel Threaded Pipe Flanges
Use these flanges for low-pressure applications in noncorrosive environments. Bolt two flanges of the same size together with a gasket (sold separately) to create an access point within a line.
For technical drawings and 3-D models, click on a part number.
- For Use With: Air, Natural Gas, Oil, Steam, Water
- Pressure Class: 150
- Specifications Met:
NPT: ASME B16.5, ASTM A105, MSS SP-25
BSPT: ASTM A105 - Fittings: Use Class 125 or 150 iron and steel
- Pipe Nipples and Pipe: Use Schedule 40 steel
Bolt Hole | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size  | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Max. Pressure | Max. Steam Pressure | Material | Each | |
BSPT | ||||||||||
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | 285 psi @ 72° F | 230 psi @ 300° F | Steel | 0000000 | 0000000 |
Compact Extreme-Pressure Steel Threaded Pipe Fittings
These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces. They are galvanized and zinc-plated steel, which have better corrosion resistance than plain steel fittings.
For technical drawings and 3-D models, click on a part number.
- For Use With: See table
- Specifications Met: See table
| Pipe Size (A) | Dash Size (A) | Pipe Size (B) | Dash Size (B) | Max. Pressure | Material | For Use With | Specifications Met | Each | |
NPT Female × BSPT Male | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3 | 48 | 3 | 48 | 1,120 psi @ 72° F | Galvanized Steel | Air, Hydraulic Fluid, Oil, Water | ASME B1.20.3, DIN EN 10226-1, ISO 7-1 | 0000000 | 0000000 |
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.
To prevent leaks in threaded connections, apply a sealant to the male threads. For plastic threads, apply a non-hardening, plastic-compatible sealant sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. 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 | Material | O-Ring Material | Color | Max. Pressure | Each | |
BSPT × NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 3 | PVC Plastic | EPDM Rubber | Dark Gray | 200 psi @ 72° F | 0000000 | 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.
BSPT threaded pipe connections meet ISO 7-1.
Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).
To prevent leaks in threaded connections, apply a sealant to the male threads. Threaded connections can be taken apart as needed for maintenance and repair. For plastic threads, apply a non-hardening, plastic-compatible sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. 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: See table
- Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
- Flanges: Use Class 150 PVC Plastic
| Pipe Size | Socket Depth | Material | Color | Max. Pressure | Specifications Met | Each | |
BSPT Threads | |||||||
|---|---|---|---|---|---|---|---|
| 3 | 1 7/8" | PVC Plastic | White | 130 psi @ 72° F | ASTM D1784, NSF/ANSI 61, ISO 7-1 | 00000000 | 000000 |
Easy-Fit Barbed Hose Fittings for Air and Water
Low-profile barbs and a longer first barb allow for a smoother, easier installation than other barbed fittings. Slide the barbed end into rubber hose and secure with a clamp.
Zinc-plated steel fittings have slightly better corrosion resistance than unplated steel fittings. Fittings with a threaded end are also known as hose nipples.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Maximum Vacuum: Not Rated, except For 2 1/2" to 4" Hose IDs: 26 in. of Hg @ 72° F
- Temperature Range: -20° to 200° F, except For 2 1/2" to 4" Hose IDs: -20° to 400° F
- Attachment Type: Use Band-and-Buckle Clamps, except For 2 1/2" to 4" Hose IDs: Use Worm-Drive Clamps, Bolt Clamps or Band-and-Buckle Clamps
- Specifications Met: See table
| For Hose ID | Pipe Size | Body Shape | Max. Pressure | Specifications Met | Each | |
Zinc-Plated Steel | ||||||
|---|---|---|---|---|---|---|
| 3" | 3 | Round | 50 psi @ 72° F | ASTM A53 | 0000000 | 000000 |
Metal Cam-and-Groove Hose Couplings for Water
A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug.
Plugs with male threaded end are also known as F adapters.
Sockets with male threaded end are also known as B couplers.
Aluminum couplings are lighter in weight than brass plugs and sockets. They have good abrasion and corrosion resistance. Brass couplings are softer than aluminum plugs and sockets, so they’re easier to thread together. They have good corrosion resistance.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Temperature Range: -65° to 250° F
- Specifications Met: Fed. Spec. A-A-59326
- Compatible With: Andrews Cam-and-Groove Couplings, Dixon Cam-and-Groove Couplings, Ever-Tite Cam-and-Groove Couplings, PT Coupling Cam-and-Groove Couplings
- Maximum Pressure: See table
- Temperature Range: -65° to 250° F
- Specifications Met: Fed. Spec. A-A-59326
- Compatible With: Andrews Cam-and-Groove Couplings, Dixon Cam-and-Groove Couplings, Ever-Tite Cam-and-Groove Couplings, PT Coupling Cam-and-Groove Couplings
Levers | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Socket ID | Pipe Size | No. of | Material | Pull Ring Material | Max. Pressure | Each | |
Anodized Aluminum | ||||||||
| 3 | 3 5/8" | 3 | 2 | 316 Stainless Steel | Zinc-Plated Steel | 200 psi @ 72° F | 00000000 | 000000 |
Plastic Cam-and-Groove Hose Couplings for Water
Made of polypropylene, these couplings are lighter in weight than metal cam-and-groove couplings and have good abrasion and corrosion resistance. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug.
Straight plugs with male threaded end are also known as F adapters.
Sockets with male threaded end are also known as B couplers.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Temperature Range: -15° to 150° F
- Specifications Met: Fed. Spec. A-A-59326
| Coupling Size | Plug OD | Pipe Size | Max. Pressure | Each | |
Polypropylene Plastic | |||||
|---|---|---|---|---|---|
| 3 | 3 5/8" | 3 | 50 psi @ 72° F | 00000000 | 000000 |
- Maximum Pressure: See table
- Temperature Range: -15° to 150° F
- Specifications Met: Fed. Spec. A-A-59326
Levers | ||||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Socket ID | Pipe Size | No. of | Material | Pull Ring Material | Max. Pressure | Each | |
Polypropylene Plastic | ||||||||
| 3 | 3" | 3 | 2 | 304 Stainless Steel | 304 Stainless Steel | 50 psi @ 72° F | 00000000 | 000000 |
Easy-Fit Barbed Hose Fittings for Chemicals
Low-profile barbs and a longer first barb allow for a smoother, easier installation than other barbed fittings. Slide the barbed end into rubber hose and secure with a clamp. Fittings are 316 stainless steel, which has excellent corrosion resistance to withstand a variety of chemicals.
Adapters are also known as hose nipples; they adapt a barbed end to a threaded end.
For technical drawings and 3-D models, click on a part number.
- For Use With: Acetone, Isopropyl Alcohol, Mineral Oil, Sodium Hydroxide
- Maximum Pressure: See table
- Maximum Vacuum: 26 in. of Hg @ 72° F
- Temperature Range: -20° to 400° F
- Attachment Type: Use Worm-Drive Clamps, Bolt Clamps or Band-and-Buckle Clamps
- Specifications Met: ASTM A312
| For Hose ID | Pipe Size | Body Shape | Max. Pressure | Each | |
316 Stainless Steel | |||||
|---|---|---|---|---|---|
| 3" | 3 | Round | 50 psi @ 72° F | 0000000 | 0000000 |
Metal Cam-and-Groove Hose Couplings for Chemicals and Petroleum
Made of metal, these couplings have better durability than plastic cam-and-groove couplings. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug. Couplings are compatible with Andrews, Dixon, Ever-Tite, and PT cam-and-groove couplings.
Plugs with male threaded end are also known as F adapters.
Plugs with female threaded end are also known as A adapters.
Sockets with male threaded end are also known as B couplers.
Straight sockets with female threaded end are also known as D couplers.
Aluminum plugs and sockets are lighter in weight than 316 stainless steel plugs and sockets. They have good corrosion resistance. 316 stainless steel plugs and sockets have excellent corrosion resistance.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
- Maximum Pressure: See table
- Temperature Range: -65° to 250° F
- Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
- Specifications Met: Fed. Spec. A-A-59326
- For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
- Maximum Pressure: See table
- Temperature Range: -65° to 250° F
- Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
- Specifications Met: Fed. Spec. A-A-59326
- For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
- Maximum Pressure: See table
- Temperature Range: -65° to 250° F
- Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
- Specifications Met: Fed. Spec. A-A-59326
- For Use With: Citric Acid, Diesel Fuel, Gasoline, Hydraulic Fluid
- Maximum Pressure: See table
- Temperature Range: -65° to 250° F
- Compatible With: Andrews Cam-and-Groove, Dixon Cam-and-Groove, Ever-Tite Cam-and-Groove, PT Coupling Cam-and-Groove
- Specifications Met: Fed. Spec. A-A-59326
Sockets | Replacement Gaskets | Replacement Levers | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coupling Size | Socket ID | Pipe Size | Dash Size | No. of Levers | Pull Ring Material | Max. Pressure | Each | Pkg. Qty. | Pkg. | Each | |||
Aluminum with 316 Stainless Steel Levers | |||||||||||||
| 3 | 3 5/8" | 3 | 48 | 2 | Zinc-Plated Steel | 200 psi @ 72° F | 0000000 | 000000 | 10 | 0000000 | 000000 | 000000000 | 000000 |
316 Stainless Steel with 316 Stainless Steel Levers | |||||||||||||
| 3 | 3 5/8" | 3 | 48 | 2 | 316 Stainless Steel | 200 psi @ 72° F | 000000000 | 000000 | __ | 000000 | 00 | 000000000 | 00000 |
Plastic Cam-and-Groove Hose Couplings for Chemicals and Petroleum
Made of plastic, these couplings are lighter in weight than metal cam-and-groove hose couplings, yet have the chemical resistance to withstand gasoline and other harsh substances. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug.
Plugs with male threaded end are also known as F adapters. Nylon plugs and sockets have better strength than PVDF plugs and sockets. They have good corrosion and chemical resistance to handle gasoline and fuel applications.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- For Use With:
Nylon Plastic: Diesel Fuel, Gasoline, Varnish
PVDF Plastic: Diesel Fuel, Gasoline, Nitric Acid, Phosphoric Acid - Maximum Pressure: See table
- Temperature Range:
Nylon Plastic: -30° to 200° F
PVDF Plastic: -20° to 250° F - Specifications Met: Fed. Spec. A-A-59326
| Coupling Size | Plug OD | Pipe Size | Thread Type | Color | Max. Pressure | Each | |
Nylon Plastic | |||||||
|---|---|---|---|---|---|---|---|
| 3 | 3 5/8" | 3 | BSPT | Yellow | 100 psi @ 72° F | 0000000 | 000000 |
Cam-and-Groove Hose Couplings for Food and Beverage
Made of FDA listed materials, these couplings are suitable for food and beverage applications and won’t impart tastes or odors to the product. They also meet NSF/ANSI 61 safety standards for use with drinking water systems. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug. Plugs and sockets are polypropylene, which is lightweight with good abrasion and corrosion resistance.
Plugs with male threaded end are also known as F adapters.
Sockets with male threaded end are also known as B couplers.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.
For technical drawings and 3-D models, click on a part number.
- Maximum Pressure: See table
- Temperature Range: 10° to 180° F
- Specifications Met: FDA Compliant 21 CFR 176.170
FDA Compliant 21 CFR 178.3297
NSF/ANSI 61
| Coupling Size | Plug OD | Pipe Size | Thread Type | Color | Max. Pressure | Each | |
Polypropylene Plastic | |||||||
|---|---|---|---|---|---|---|---|
| 3 | 3 5/8" | 3 | BSPT | White | 50 psi @ 72° F | 000000000 | 000000 |
- Maximum Pressure: See table
- Temperature Range: 10° to 180° F
- Specifications Met: FDA Compliant 21 CFR 176.170
FDA Compliant 21 CFR 178.3297
NSF/ANSI 61