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 Duct Hose
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Abrasion-Resistant Very Flexible Duct Hose for Dust
- Very Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Clear or Black
- Temperature Range: -40° to 200° F
A blend of rubber and plastic creates a hose that's flexible, yet tough enough to handle abrasive particles such as grinding dust and sawdust.
Clear hose lets you see what's running through your line. It has a smooth interior for unrestricted flow.
Warning: Hose should not be used for applications that generate a static charge.
Spiral | Per Ft. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Vacuum | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Max. Continuous Lg., ft. | 1-24 | 25-Up | |
Clear Polyurethane | |||||||||||||
| 2" | 2 1/8" | 2" | 50% | 22 in. of Hg @ 72° F | 8 psi @ 72° F | 0.02" | Smooth | Left Hand | Metal | 25 | 5136K13 | 00000 | 00000 |
High-Temperature Flexible Duct Hose for Fumes
- Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Black or Red
- Temperature Range: Neoprene Coated: -65° to 300° F; Silicone Coated: -75° to 500° F
Combining the heat resistance of metal with the flexibility of fabric, this fiberglass hose has a special coating that stands up to high temperatures. Hose is for use with smoke, water-based paint fumes, and welding fumes.
Neoprene-coated hose meets UL 94 HB and UL 94 V-0 for flame retardance and can also handle sparks.
Silicone-coated hose handles a wider temperature range than neoprene-coated hose.
Hose with cuffed ends has finished edges for easy attachment to duct hose connectors.
Warning: Hose should not be used for applications that generate a static charge.
Spiral | Per Ft. | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Vacuum | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Specifications Met | Max. Continuous Lg., ft. | 1-24 | 25-Up | |
Black Neoprene-Coated Fiberglass | ||||||||||||||
| 2" | 2 1/8" | 2" | 75% | 20 in. of Hg @ 72° F | 24 psi @ 72° F | 0.023" | Ribbed | Right Hand | Metal | UL 94 HB, UL 94 V-0 | 25 | 55125K17 | 000000 | 000000 |
Red Silicone-Coated Fiberglass | ||||||||||||||
| 2" | 2 1/8" | 2" | 75% | 20 in. of Hg @ 72° F | 24 psi @ 72° F | 0.023" | Ribbed | Right Hand | Metal | __ | 25 | 55125K76 | 00000 | 00000 |
Spiral | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Vacuum | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Specifications Met | 5 ft. | 15 ft. | 25 ft. | |
Black Neoprene-Coated Fiberglass | ||||||||||||||
| 2" | 2 1/8" | 2" | 75% | 20 in. of Hg @ 72° F | 24 psi @ 72° F | 0.023" | Ribbed | Right Hand | Metal | UL 94 HB, UL 94 V-0 | 55125K101 | |||
Red Silicone-Coated Fiberglass | ||||||||||||||
| 2" | 2 1/8" | 2" | 75% | 20 in. of Hg @ 72° F | 24 psi @ 72° F | 0.023" | Ribbed | Right Hand | Metal | __ | 55125K105 | |||
High-Temperature Rigid Metal Duct Hose for Fumes
- Rigid
- Compatible Clamps: U-Bolt Clamps
- Max. Temperature: Galvanized Steel: 750° F; Aluminum: 450° F; 304 Stainless Steel: 1500° F; 316 Stainless Steel: 1200° F
Metal interlocked strips create a rigid, durable hose that stays strong under high temperatures. Hose is for use with smoke, welding fumes, and oil fumes.
Galvanized steel offers fair corrosion resistance.
304 stainless steel has very good corrosion resistance.
Heat-Reflective Duct Hose for Air
- Flexible
- Compatible Clamps: Worm-Drive and Quick-Release Clamps
- Color: Silver
- Temperature Range: -65° to 625° F
A metalized polyester cover reflects heat so the temperature inside the hose won't rise. Hose has a smooth interior for unrestricted flow.
Spiral | Per Ft. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Vacuum | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Max. Continuous Lg., ft. | 1-11 | 12-Up | |
Fiberglass Hose with Metalized Polyester Cover | |||||||||||||
| 2" | 2 1/8" | 2" | 35% | 29 in. of Hg @ 72° F | 30 psi @ 72° F | 0.027" | Smooth | Right Hand | Metal | 12 | 6665T13 | 000000 | 000000 |
Vibration-Resistant Water Hose with Solder-Connect Tube Fittings
- Temperature Range: -420° to 450° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: Bronze
Flexible braided construction allows this hose to absorb vibration to reduce wear on equipment. To make a connection, insert the end of a tube fitting into the copper tube on the ends of this hose and solder together for a permanent connection. Hose is bronze, which is compatible with copper and offers good corrosion resistance. Copper tube size is the accepted designation of the copper tube industry, not the actual tube OD.
| Copper Tube Size  | Tube OD | ID | OD | Bend Radius | Max. Pressure | Lg. | Each | |
Copper Solder-Connect Female Tube | ||||||||
|---|---|---|---|---|---|---|---|---|
| 2 × 2 | 2 1/8" × 2 1/8" | 2" | 2 1/2" | 17" | 190 psi @ 72° F | 20" | 5611K34 | 0000000 |
Flexible Coolant Hose
- Temperature Range: -20° to 210° F
- Maximum Vacuum: 28" of Hg @ 72° F
- Material: Buna-N Rubber with Neoprene Rubber Cover
- Color: Black with Yellow Stripe
- For Clamp Type: Worm Drive
With a tighter bend radius than other coolant hose, this hose can easily twist and turn around equipment.
High-Vacuum Hose with Quick-Clamp Fittings
A braided exterior protects this hose from abrasion and over-bending. Also known as bellows, the ribbed interior makes it flexible enough to connect high-vacuum components that aren't directly aligned. It also reduces vibration between components such as pumps, valves, and chambers. Connect to your components with the quick-clamp (KF) fittings; a clamp and a ring (both sold separately) are required for each fitting. Not for use in pressure applications.
- Temperature Range: Not Rated
- Material: 304 Stainless Steel
- Fitting Material: 304 Stainless Steel
| For Tube OD | Flange OD | High-Vacuum Flange Size | ID | OD | Wall Thickness | Bend Radius | High Vacuum Connection Type | Max. Vacuum | Specifications Met | Each | |
6" Lg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.006" | 10" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 3497N31 | 0000000 |
12" Lg. | |||||||||||
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.008" | 10" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 3497N32 | 000000 |
24" Lg. | |||||||||||
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.008" | 10" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 3497N33 | 000000 |
36" Lg. | |||||||||||
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.008" | 10" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 3497N34 | 000000 |
39" Lg. | |||||||||||
| 1 1/2" | 2.16" | 40 | 1 1/2" | 2 1/8" | 0.008" | 10" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 3497N35 | 000000 |
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Specifications Met | Each | |
With Wing Nut | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | ISO 2861 | 4518K73 | 000000 |
Material | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | O-Ring | Inner Ring | Max. Vacuum | Specifications Met | Each | |
| 1 1/2" | 2.16" | 40 | ISO-KF | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 10 -8 torr @ 72° F | ISO 2861 | 4518K64 | 000000 |
Wear-Resistant Low-Pressure Chemical Hose
- Temperature Range: -40° to 160° F
- Maximum Vacuum: 28" of Hg @ 72° F
- Material: UHMW Polyethylene with EPDM Rubber Cover
- Color: Green with Purple Stripe
- Compatible Hose Fittings: Cam-and-Groove.
Expose this UHMW (ultra-high molecular weight) polyethylene hose to harsh physical conditions without worrying about it deteriorating or becoming brittle.
Per Ft. | |||||||
|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Max. Pressure | Max. Continuous Lg., ft. | 1-49 | 50-Up | |
| 1 1/2" | 2 1/8" | 7 1/2" | 200 psi @ 72° F | 50 | 5095T24 | 000000 | 000000 |
High-Temperature Medium-Pressure Chemical Hose
- Temperature Range: -40° to 350° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material:
1/2" and 3/4" ID Hose: PTFE with EPDM Rubber Cover
All Other Hose: FEP with EPDM Rubber Cover - Color: Green with Yellow Stripe
- Compatible Hose Fittings: Barbed
This hose can stand up to chemicals at high temperatures.
Per Ft. | |||||||
|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Max. Pressure | Max. Continuous Lg., ft. | 1-49 | 50-Up | |
| 1 1/2" | 2 1/8" | 10 1/2" | 350 psi @ 72° F | 50 | 54675K244 | 000000 | 000000 |
Metal Barbed Hose Fittings for Air and Water
Slide the barbed end into rubber hose and secure with the appropriate clamp or crimp-on hose ferrule.
Zinc-plated steel fittings are stronger and more durable than other metal fittings. They have fair corrosion resistance, so they should be used primarily in dry environments.
Aluminum fittings are lighter in weight than other metal fittings. They have good corrosion resistance.
Stainless steel fittings have very good corrosion resistance. 303/304 stainless steel fittings also stand up to wet and high-humidity environments.
Fittings with a threaded end are also known as hose nipples.
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: See table
- Attachment Type: See table
- Specifications Met: See table
| For Hose ID | Pipe Size | Max. Pressure | Max. Vacuum | Temperature Range, °F | Attachment Type | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/4" | 1/2 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 350° | Worm-Drive Clamp | 1 | 5350K53 | 000000 |
| 3/8" | 1/2 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 350° | Worm-Drive Clamp | 1 | 5350K59 | 0000 |
| 1/2" | 1/2 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 350° | Worm-Drive Clamp | 1 | 5350K82 | 0000 |
Aluminum | ||||||||
| 3/8" | 1/4 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 160° | Worm-Drive Clamp | 1 | 5357K36 | 0000 |
| 3/8" | 1/2 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 160° | Worm-Drive Clamp | 1 | 5357K38 | 0000 |
| 1/2" | 1/2 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 160° | Worm-Drive Clamp | 1 | 5357K42 | 0000 |
303/304 Stainless Steel | ||||||||
| 3/8" | 1/2 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 350° | Worm-Drive Clamp | 1 | 5361K38 | 00000 |
| 1/2" | 1/2 | 150 psi @ 72° F | 27 in. of Hg @ 72° F | -40° to 350° | Worm-Drive Clamp | 1 | 5361K42 | 00000 |
Industrial Quick-Disconnect Hose Couplings for Air
A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. They are also known as industrial interchange couplings. All Industrial plugs are compatible with any of the Industrial sockets of the same coupling size, regardless of the pipe size or barbed hose ID.
Brass is softer than other metals, so it’s easier to thread together. It has good corrosion resistance. Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Specifications Met: See table
Plugs are also known as nipples.
Plug Tip | |||||
|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Each | |
Brass | |||||
| 1/4 | 3/16" | 5/16" | 1 | 1077T103 | 000000 |
- Maximum Pressure: 300 psi @ 72° F
- Temperature Range: -40° to 225° F
- Specifications Met: See table
Plugs are also known as nipples.
Plugs and sockets with a push-on barbed end have sharper barbs than standard barbed hose fittings to grip rubber push-on hose with no clamps or ferrules required. The more you pull on the fittings, the tighter the hose will grip. To ensure proper connection, the barbed end has to be pushed in all the way, with the hose end concealed by the ring.
Plug Tip | Ring Stop | |||||||
|---|---|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | For Hose ID | Material | Color | Specifications Met | Each | |
Brass | ||||||||
| 3/8 | 5/16" | 7/16" | 3/8" | Plastic | Yellow | ISO 6150/B | 1077T16 | 000000 |
Tru-Flate Quick-Disconnect Hose Couplings for Air
A complete coupling consists of a plug and a socket (both sold separately or in a set) that connect and disconnect quickly. Use them if you need frequent access to a line. All Tru-Flate plugs are compatible with any of the Tru-Flate sockets of the same coupling size, regardless of the pipe size or barbed hose ID. They are also known as automotive couplings.
Sockets have a shut-off valve that stops the flow when the coupling is separated, so air won’t leak from the line.
Push-to-connect sockets are easier to connect than sleeve-lock sockets. Connect by pushing the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket forward until the plug ejects.
Zinc-plated steel is stronger and more durable than other metals. It has fair corrosion resistance, so it should be used primarily in dry environments. Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: 26 in. of Hg @ 72° F
- Temperature Range: -40° to 225° F
For Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Material | Each | |
Zinc-Plated Steel | ||||||
| 1/4 | 1/16" | 3/8" | 3/8 | Brass | 95815K18 | 000000 |
Push-On Barbed Hose Fittings for Hydraulic Fluid
These fittings have sharp barbs to grip rubber push-on hose with no clamps or ferrules required. The more you pull on the fittings, the tighter the hose will grip. Use them in low-pressure hydraulic applications up to 350 psi. Also known as hose nipples, they adapt a barbed end to a threaded end, so you can connect to pumps, cylinders, and other equipment in your hydraulic system. Fittings are zinc-plated steel, which has excellent strength and durability. Fittings have fair corrosion resistance.
Fittings that swivel until tightened rotate 360° for easy installation.
Note: To ensure proper connection, the barbed end has to be pushed in all the way, with the hose end concealed by the ring.
- Maximum Pressure: See table
- Maximum Vacuum: 28 in. of Hg @ 72° F
- Temperature Range: -40° to 255° F
- For Hose Manufacturer Series: Parker 801
International Standard ISO B Quick-Disconnect
Hose Couplings for Hydraulic Fluid
A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them if you need frequent access to a hydraulic hose line. All of the International Standard ISO B quick-disconnect plugs are compatible with any of the International Standard ISO B quick-disconnect sockets of the same coupling size, regardless of the pipe size. Couplings meet ISO 7241-1 Series B dimensional and performance standards and are compatible with Parker 60 couplings. Also known as double shut-off couplings, the plugs and sockets both have a shut-off valve that stops the flow when the coupling is separated.
Plugs are also known as nipples.
Zinc-plated steel is stronger and more durable than other metals. It has fair corrosion resistance.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size. Pressure ratings are given for static (constant) pressure conditions.
Warning: Never attempt to connect or disconnect couplings when operating at maximum pressure. Stop the flow before you disconnect the line.
- Maximum Pressure: See table
- Temperature Range: See table
- Compatible With: ISO 7241-1 Series B, Parker 60
- Specifications Met: ISO 7241-1 Series B
- Maximum Pressure: See table
- Maximum Vacuum: 27 in. of Hg @ 72° F
- Temperature Range: -40° to 250° F
- Compatible With: ISO 7241-1 Series B, Parker 60
- Specifications Met: ISO 7241-1 Series B
Quick-Disconnect Hose Couplings for Steam
Use these couplings for low-pressure steam heating, humidification, and washdown applications up to 300 psi. A complete coupling consists of a plug and a socket (both sold separately) that connect and disconnect quickly. Use them when you need frequent access to a line. All of the quick-disconnect steam plugs are compatible with any of the quick-disconnect steam sockets of the same coupling size, regardless of the pipe size. Plugs and sockets are brass for good corrosion resistance.
Sockets have a shut-off valve that stops the flow when the coupling is separated, so steam won’t leak from the line. They swivel before and after installation as needed to prevent hose kinking. Sockets are push-to-connect style. To connect, push the plug into the socket until you hear a click. To disconnect, slide the sleeve on the socket back until the plug ejects.
Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.
- Maximum Pressure: 300 psi @ 72° F
- Maximum Vacuum: 27 in. of Hg @ 72° F
- Temperature Range: -40° to 300° F
- Specifications Met: ISO 6150/B
For Plug Tip | ||||||
|---|---|---|---|---|---|---|
| Coupling Size | Lg. | Dia. | Pipe Size | Thread Type | Each | |
Brass | ||||||
| 1/4 | 3/16" | 5/16" | 3/8 | NPT | 2889N17 | 000000 |
Vacuum Fittings for Steel Tubing
- For Use With: Air, Glass, Plastic Pellets, Resins, Wood Chips
- Temperature Range: -10° to 180° F
- Tubing: Galvanized Steel: Use with steel, galvanized steel
Steel: Use with steel
Use these fittings to create an air vacuum system without the hassle of brazing and welding. Insert two fittings into a clamp (sold separately) and tighten to form a secure seal.
Galvanized steel fittings have fair corrosion resistance. Fittings without a finish should only be used in noncorrosive environments.
Galvanized Steel | Steel | ||||||
|---|---|---|---|---|---|---|---|
| For Tube OD (A) | For Tube OD (B) | Max. Pressure | Max. Vacuum | Each | Each | ||
| 2 1/2" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K89 | 000000 | 5099K51 | 000000 |
| 3" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K98 | 00000 | 5099K52 | 00000 |
| 3 1/2" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K99 | 00000 | 5099K53 | 00000 |
| 4" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K133 | 00000 | 5099K55 | 00000 |
| 5" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K134 | 000000 | 5099K56 | 000000 |
| 6" | 2 1/8" | 15 psi @ 72° F | 15 in. of Hg @ 72° F | 4935K135 | 000000 | 5099K57 | 000000 |
Quick-Connect High-Vacuum Fittings for Stainless Steel Tubing
Twist these fittings onto high-vacuum tubing to quickly make sealed, high-vacuum connections without the need for clamping, welding, or tools. To connect, insert your tubing into the fitting and twist the collar on the end of the fitting; an O-ring on the inside of the fitting compresses to form the seal. Also known as quick-disconnects, they're as easy to twist off as they are to twist on. Not for use in pressure applications.
Connectors have quick-connect fittings on both sides. Use them to connect two lengths of tubing: stainless steel to stainless steel, glass to glass, or go from one material to the other.
Vacuum-Rated Large-Diameter Aluminum Tubing
- Temperature Range: Not Rated
- Bending Method: Tube Bender
- Compatible Fittings: Vacuum
Move bulk material, exhaust gas, or suck up dust in powerful vacuum systems—this tubing is large enough to transfer pellets and debris and strong enough to withstand nearly perfect vacuum. Made of aluminum, it’s lighter weight than steel tubing, so it’s best when you need to reduce the weight of your system. It also resists corrosion from frequent rinsing, humidity, and rain. Nonmagnetic, it won’t disrupt sensitive equipment. This tubing isn’t welded, which means it’s free of weak spots and ridges that could obstruct flow.
Vacuum-Rated Large-Diameter Steel Tubing
- Max. Temperature: Not Rated
- Bending Method: Tube Bender
- Compatible Fittings: Vacuum
This tubing has the strength to withstand vacuum applications up to 29" Hg. It is welded and has a weld bead on the inside.
Tubing with a galvanized finish offers better corrosion resistance than unfinished steel.
Rotating Push-to-Connect Tube Fittings for Air
- Temperature Range: 25° to 140° F
- Tubing: Use with firm or hard (Durometer 55D-60D, Durometer 91A-97A, or Rockwell R70-R85) nylon plastic or polyurethane rubber
Ball bearings allow these fittings to rotate 360°, even after they are tightened. Fittings rotate at the pipe end and have a special seal that reduces friction to allow for continuous rotation. Also known as instant fittings, they connect to tubing with a push, and an internal gripping ring and O-ring hold the tubing tight. To disconnect, push on the release ring and pull the tubing out of the fitting. They have good corrosion resistance.
Fittings with PTFE thread sealant offer extra protection against leaks.
| For Tube OD | Pipe Size | Bearing Construction | Tube Connection Material | Pipe Connection Material | Color | Release Ring Color | Max. Pressure | Features | Each | |
NPT Threads | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 3/8" | 1/4 | Single Row | Polybutylene Plastic | Nickel-Plated Brass | Gray | Red | 140 psi @ 72° F | PTFE Thread Sealant | 52115K313 | 000000 |
Plastic Quick-Disconnect Tube Couplings for Air and Water
Lighter in weight than their metal counterparts, these quick-disconnect couplings are made of acetal plastic. They are moisture resistant, so they won’t absorb water and lose strength, even in high-humidity environments. A complete coupling consists of a plug and socket; choose a set for both, or select a plug and socket separately. Because they're quick disconnect, they're helpful for lines you frequently need to access.
Latch-lock sockets connect and disconnect with just one hand. Join sockets with a push and disconnect sockets by pressing the latch.
Plugs and sockets with shut-off have a valve to stop the flow when the coupling is separated, so air or water won’t spill from your line.
Note: For a complete coupling, order a plug and a socket with the same coupling size.
- Temperature Range: -40° to 180° F
- Tubing: Use with firm or hard (Durometer 85A-60D) nylon plastic or polyethylene plastic
Compression plugs and sockets have a sleeve (ferrule) that compresses the tubing and forms a seal when you tighten the nut.
With Shut-Off | |||||||
|---|---|---|---|---|---|---|---|
| For Tube OD | Pipe Size | Material | Color | Max. Pressure | Socket Locking Type | Each | |
NPT Threads | |||||||
| 1/4" | 1/4 | Acetal Plastic | White | 100 psi @ 72° F | Latch | 5012K125 | 000000 |
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).
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 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 | |
| 3/4 | 1" | PVC Plastic | Dark Gray | 4881K72 | 00000 |
- 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
Unions separate into three pieces so you can access your line.
| Pipe Size | Socket Depth | Material | O-Ring Material | Color | Each | |
| 1/2 | 15/16" | PVC Plastic | Viton® Fluoroelastomer Rubber | Dark Gray | 4881K61 | 00000 |
- For Use With: Water
- Maximum Temperature: 180° F
- Specifications Met: ASTM D4101, ASTM F1498
- Pipe Nipples and Pipe: Use Schedule 80 Polypropylene Plastic
- Flanges: Use Class 150 Polypropylene Plastic
Fittings with stainless steel collar have a reinforcement on the female threads to prevent the threads from cracking.
Unions separate into three pieces so you can access your line.
| Pipe Size | Material | Collar Material | O-Ring Material | Color | Max. Pressure | Each | |
NPT Threads | |||||||
|---|---|---|---|---|---|---|---|
| 3/4 | Polypropylene Plastic | Stainless Steel | Viton® Fluoroelastomer Rubber | Black | 150 psi @ 72° F | 4883K92 | 000000 |
- 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
Fittings with stainless steel collar have a reinforcement on the female threads to prevent the threads from cracking.
Unions separate into three pieces so you can access your line.
| Pipe Size | Socket Depth | Material | Collar Material | O-Ring Material | Color | Each | |
NPT Threads | |||||||
|---|---|---|---|---|---|---|---|
| 1/4 | 5/8" | PVC Plastic | Stainless Steel | EPDM Rubber | Dark Gray | 9174K41 | 000000 |
- 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 (A) | Pipe Size (B) | Material | Color | Each | |
NPT Threads | |||||
|---|---|---|---|---|---|
| 4 | 2 | PVC Plastic | Dark Gray | 4596K409 | 000000 |
- 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
Fittings with stainless steel collar have a reinforcement on the female threads to prevent the threads from cracking.
| Pipe Size (A) | Pipe Size (B) | Material | Collar Material | Color | Each | |
NPT Threads | ||||||
|---|---|---|---|---|---|---|
| 4 | 2 | PVC Plastic | Stainless Steel | Dark Gray | 9174K171 | 0000000 |
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%), 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 | |
| 1/2 | 15/16" | CPVC Plastic | Viton® Fluoroelastomer Rubber | 80 | Light Gray | Not Rated | 6826K62 | 000000 |
Medium-Pressure Iron and Steel Threaded Pipe Fittings
With better strength than our low-pressure iron and steel pipe fittings, these can handle medium-pressure applications. They are for use in noncorrosive environments.
Fittings with intermittent swivel rotate 360° as needed to allow movement in a rigid metal piping system.
- For Use With: Coolant, Water, Air
- Temperature Range: -25° to 225° F
- Flanges: Use Class 150 galvanized steel
| Pipe Size | Length | Max. Pressure | Max. Vacuum | Material | Each | |
NPT Male × NPT Female | ||||||
|---|---|---|---|---|---|---|
| 1/4 | 2 1/8" | 250 psi @ 72° F | 28 in. of Hg @ 72° F | Steel | 9519K71 | 0000000 |