Wing Nut Expansion Plugs
Twist the wing nut on these plugs to expand the seal and close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
Style A aren’t recommended for pressure testing, so they’re often used as a dust cover. Style B have a wide top flange so they don’t fall into your pipe. They’re often used for plumbing pressure tests. Style D lock with a padlock to limit access. They’re often used on monitoring wells. Plugs with a zinc-plated steel plate have fair corrosion resistance. Plugs with a stainless steel plate have excellent corrosion resistance. Plugs with a plastic plate weigh less than plugs with a metal plate.
For Pipe | Max. Back Pressure | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Lock Type | For Max. Shackle Dia. | Each | |
Style A | ||||||||||
Zinc-Plated Steel Plate | ||||||||||
| 6 | 5.62"-6.40" | 1 | 2 | 3 3/16" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 000000 |
Stainless Steel Plate | ||||||||||
| 6 | 5.62"-6.40" | 1 | 2 | 3 3/16" | 0° to 175° | Buna-N Rubber | __ | __ | 0000000 | 00000 |
Style B | ||||||||||
Yellow Plastic Plate | ||||||||||
| 6 | 5.77"-6.08" | 17 | 40 | 3 3/4" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 00000 |
Style D | ||||||||||
Green Plastic Plate | ||||||||||
| 6 | 5.77"-6.08" | 6 | 15 | 4" | -20° to 125° | Buna-N Rubber | Padlockable | 5/16" | 00000000 | 00000 |
Square-Head Expansion Plugs
Turn the square head of the plug into the sealing ring to close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Pipe | Max. Back Pressure | |||||||
|---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Plastic Head | ||||||||
| 6 | 6.07"-6.16" | 13 | 30 | 2" | 35° to 210° | Polyurethane Rubber | 00000000 | 000000 |
Quick-Lock Expansion Plugs
Save time sealing off pipe or valve box openings. These plugs install with one quarter turn of the handle, unlike wing nut expansion plugs that require multiple turns. They temporarily close off your line with plastic feet that expand mechanically. The feet create a longer-lasting seal than plugs that expand with internal pressure, which can loosen over time. Since these plugs have no pressure ratings, they’re best for low-pressure applications. They’re often used in valve boxes to keep out dirt and debris.
Plugs with a blue handle often signify a closed-off water line.
Plugs with a black handle often signify a closed-off wastewater line.
Expansion Plugs with Bypass
Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing. The seal expands to temporarily close off pipe openings. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Styles A-E and H-L, twist the wing nut to expand the seal.
Styles A and B have an NPS threaded bypass for routing moderately pressurized fluids.
Styles C and D have an NPT threaded bypass for making leak-tight connections.
For Pipe | Max. Back Pressure | Material | Bypass | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal | Bypass Cap | Pipe Size | Thread Type | Gender | Each | |
Style B | ||||||||||||
Steel Stem | ||||||||||||
| 6 | 5.80"-6.50" | 20 | 46 | 12" | 35° to 210° | Natural Rubber | Metal | 1/2 | NPS | Male | 0000000 | 0000000 |
Style C | ||||||||||||
Iron Stem | ||||||||||||
| 6 | 5.50"-6.00" | Not Rated | 23 | 12 1/2" | 30° to 150° | Natural Rubber | Metal | 1/2 | NPT | Male | 0000000 | 00000 |
Style D | ||||||||||||
Plastic Stem | ||||||||||||
| 6 | 5.50"-6.29" | 10 | 23 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | 1/2 | NPT | Male | 0000000 | 00000 |
Air-Inflatable Plugs
Conform to wide and out-of-round pipes with these inflatable plugs. Also known as pneumatic plugs, they're designed for temporary seals since they can lose pressure over time. Inflate with a hand pump (sold separately); an air compressor may overinflate the plug and cause damage. Tether the plugs using either the eyebolt or chain/ring so they don't get lost or stuck in your pipes. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Pipe | Deflated | Max. Back Pressure | Material | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Dia. | Ht. | Air, psi | Water, ft. of head | Required Inflation Pressure, psi | Temp. Range, °F | Seal | Chain/Ring | Each | |
| 6 | 5.44"-6.25" | 5 1/4" | 9" | 13 | 30 | 30 | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 000000 | 0000000 |
Air-Inflatable Plugs for Tee Connections
Often used for plumbing tests, these plugs thread into tees and inflate to block flow across the pipe. After your test is complete, deflate the bladder to drain the fluid from your line. Leave the plug installed while the draining the pipe—the threads create a leak-free seal, so no water will splash out. Also known as pneumatic plugs, they can lose pressure over time, so they’re designed for temporary seals. To inflate, use a hand pump (not included) since an air compressor might overinflate and burst them.
Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Pipe | Deflated | Max. Back Pressure | Material | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Dia. | Ht. | Air, psi | Water, ft. of head | Required Inflation Pressure, psi | Temp. Range, °F | Seal | Thread | Each | |
NPT Male | |||||||||||
| 6 | 6.065" | 6 5/8" | 11" | 13 | 30 | 25 | 0° to 125° | Natural Rubber | ABS Plastic | 0000000 | 0000000 |
Air-Inflatable Plugs with Bypass
Conform to wide and out-of-round pipes with these inflatable plugs. Also known as pneumatic plugs, they're designed for temporary seals since they can lose pressure over time. Use the bypass tube on these plugs to add air, water, and other fluid to your pipeline or to relieve pressure while testing.
Inflate with a hand pump (sold separately); an air compressor may overinflate the plug and cause damage. Tether the plugs using either the eyebolt or chain/ring so they don't get lost or stuck in your pipes during installation. Pull on the tether for quick and easy removal once testing is complete.
Maximum air back pressure is the amount of pressure a plug can withstand without moving.
Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
For Pipe | Deflated | Max. Back Pressure | Bypass | Material | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Dia. | Ht. | Air, psi | Water, ft. of head | Required Inflation Pressure, psi | Pipe Size | Thread Type | Gender | Temp. Range, °F | Seal | Eyebolt | Each | |
| 6 | 4.50"-6.25" | 4 1/2" | 7" | 13 | 30 | 35 | 1 1/2 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 0000000 |
Deep-Reach Wing Nut Expansion Plugs
Insert these plugs deep within your pipe to temporarily block off a line. Twist their wing nut to expand the seal. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.
Plugs with a plastic plate are lighter in weight than plugs with a stainless steel plate.
For technical drawings and 3-D models, click on a part number.
For Pipe | Max. Back Pressure | |||||||
|---|---|---|---|---|---|---|---|---|
| Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Plastic Plate | ||||||||
| 6 | 5.77"-6.08" | 17 | 40 | 3 3/4" | 0° to 125° | Natural Rubber | 0000000 | 000000 |
Expansion Plugs for Cleanout Tees
Seal cleanout tees when testing your drain, waste, and vent systems for pressure and leaks—no need to inflate these plugs with an air compressor or hand pump. To install, insert the plug end into your pipe so the curved foot is on the bottom threads of the cleanout tee, then push down the handle to lock it into the foot. The foot has a two-stage release latch: lift the handle one notch to release the plug and allow liquid to drain slowly, then lift the handle again until the foot fully disengages to take out the plug.
For Pipe | Max. Back Pressure | Material | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal | Handle | For Use With | Each | |
| 6 | 6.065" | 35 | 80 | 18" | 32° to 120° | Natural Rubber | Steel | ABS Pipe, Cast Iron Pipe, PVC Pipe | 00000000 | 0000000 |