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 E have an eyebolt, so you can tether or hang them for convenient storage. Style F have flanges of the same size, so you can install them as deep as needed. Rated for higher pressures than our other styles, they’re ideal for leak testing.
Plugs with a zinc-plated steel plate have fair corrosion resistance.
For Pipe | Max. Back Pressure | |||||||
---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Style A | ||||||||
Zinc-Plated Steel Plate | ||||||||
1 1/2 | 1.44"-1.65" | 2 | 5 | 2 9/16" | -20° to 125° | Natural Rubber | 0000000 | 00000 |
2 | 1.96"-2.25" | 2 | 5 | 2 5/8" | -20° to 125° | Natural Rubber | 0000000 | 0000 |
3 | 2.86"-3.25" | 2 | 5 | 2 11/16" | -20° to 125° | Natural Rubber | 0000000 | 0000 |
4 | 3.78"-4.50" | 2 | 5 | 3 1/4" | -20° to 125° | Natural Rubber | 0000000 | 0000 |
5 | 4.62"-5.30" | 1 | 2 | 3 9/16" | -20° to 125° | Natural Rubber | 0000000 | 00000 |
6 | 5.62"-6.40" | 1 | 2 | 3 3/16" | -20° to 125° | Natural Rubber | 0000000 | 00000 |
Style E | ||||||||
Zinc-Plated Steel Plate | ||||||||
1/2 | 0.51"-0.60" | 35 | 80 | 4" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
3/4 | 0.71"-0.80" | 35 | 80 | 4" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
1 | 0.91"-1.10" | 35 | 80 | 4" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
1 1/4 | 1.11"-1.30" | 15 | 34 | 6" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
1 1/2 | 1.31"-1.70" | 15 | 34 | 6" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
Style F | ||||||||
Zinc-Plated Steel Plate | ||||||||
3/8 | 0.38"-0.43" | 185 | 428 | 1 7/8" | -20° to 125° | Natural Rubber | 00000000 | 00000 |
1/2 | 0.50"-0.56" | 180 | 415 | 1 7/8" | -20° to 125° | Natural Rubber | 00000000 | 0000 |
3/4 | 0.72"-0.87" | 180 | 415 | 2 1/16" | -20° to 125° | Natural Rubber | 00000000 | 0000 |
1 | 0.86"-1.02" | 40 | 90 | 2 3/16" | -20° to 125° | Natural Rubber | 00000000 | 0000 |
1 1/4 | 1.24"-1.43" | 110 | 255 | 2 1/16" | -20° to 125° | Natural Rubber | 00000000 | 00000 |
Hex-Nut Expansion Plugs


Tighten the 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 D have an eyebolt that allows you to tether or hang the plug for convenient storage.
Plugs with a zinc-plated steel plate have fair corrosion resistance.
For Pipe | Max. Back Pressure | |||||||
---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Style C | ||||||||
Zinc-Plated Steel Plate | ||||||||
3/4 | 0.73"-0.82" | 100 | 230 | 2" | -20° to 225° | Neoprene Rubber | 0000000 | 000000 |
1 | 0.93"-1.05" | 100 | 230 | 2 1/4" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
1 1/4 | 1.13"-1.38" | 100 | 230 | 2 1/4" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
1 1/2 | 1.33"-1.61" | 100 | 230 | 2 1/2" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
2 | 1.73"-2.07" | 75 | 173 | 2 1/2" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
3 | 2.73"-3.07" | 50 | 115 | 3 1/2" | -20° to 225° | Neoprene Rubber | 0000000 | 000000 |
Style D | ||||||||
Zinc-Plated Steel Plate | ||||||||
2 | 1.71"-2.10" | 15 | 34 | 6" | -20° to 225° | Neoprene Rubber | 0000000 | 00000 |
2 1/2 | 2.11"-2.73" | 15 | 34 | 7 1/2" | -20° to 225° | Neoprene Rubber | 0000000 | 000000 |
3 | 2.74"-3.25" | 15 | 34 | 7 1/2" | -20° to 225° | Neoprene Rubber | 0000000 | 000000 |
T-Handle Expansion Plugs

Twist the easy-grip T-handle 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.
Plugs with a zinc-plated steel plate have fair corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Pipe | Max. Back Pressure | Brass Handle | ||||||
---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Zinc-Plated Steel Plate | ||||||||
__ | 0.82"-0.92" | 10 | 24 | 2" | -40° to 250° | Neoprene Rubber | 0000000 | 000000 |
1 | 0.94"-1.05" | 5 | 12 | 2 3/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 1.06"-1.22" | 5 | 12 | 2 11/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
1 1/4 | 1.21"-1.36" | 5 | 12 | 2 3/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 1.32"-1.47" | 5 | 12 | 2 1/2" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
1 1/2 | 1.44"-1.55" | 5 | 12 | 2 3/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 1.55"-1.72" | 5 | 12 | 2 1/2" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 1.70"-1.80" | 5 | 12 | 2 11/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 1.81"-1.97" | 5 | 12 | 2 3/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
2 | 1.93"-2.10" | 5 | 12 | 2 3/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.06"-2.29" | 5 | 12 | 3 13/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.22"-2.35" | 5 | 12 | 3 3/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.30"-2.55" | 5 | 12 | 3 15/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
2 1/2 | 2.44"-2.60" | 5 | 12 | 3 7/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.56"-2.84" | 5 | 12 | 3 15/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.63"-2.85" | 5 | 12 | 3 15/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
3 | 2.92"-3.10" | 5 | 12 | 3 3/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 3.13"-3.35" | 5 | 12 | 3 7/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
3 1/2 | 3.44"-3.60" | 5 | 12 | 3 15/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 3.69"-3.85" | 5 | 12 | 3 15/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
4 | 3.97"-4.10" | 5 | 12 | 3 7/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
Quick-Snap Expansion Plugs

Turn the cam handle to expand the seal, then snap the handle down to hold it in place 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.
Plugs with a zinc-plated steel plate have fair corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Pipe | Max. Back Pressure | Brass Handle | ||||||
---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Zinc-Plated Steel Plate | ||||||||
1 | 0.97"-1.05" | 5 | 12 | 2 3/8" | -40° to 250° | Neoprene Rubber | 0000000 | 000000 |
1 1/8 | 1.05"-1.17" | 5 | 12 | 2 3/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
1 1/4 | 1.19"-1.30" | 5 | 12 | 2 3/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 1.30"-1.42" | 5 | 12 | 2 3/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
1 1/2 | 1.38"-1.55" | 5 | 12 | 2 3/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 1.53"-1.67" | 5 | 12 | 2 5/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
1 3/4 | 1.63"-1.80" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 1.75"-1.92" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
2 | 1.95"-2.05" | 5 | 12 | 2 3/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.06"-2.17" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
2 1/4 | 2.25"-2.30" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.31"-2.42" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
2 1/2 | 2.47"-2.55" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.53"-2.72" | 5 | 12 | 2 3/8" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
2 3/4 | 2.69"-2.85" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
__ | 2.86"-2.97" | 5 | 12 | 2 1/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
3 | 2.94"-3.10" | 5 | 12 | 2 1/4" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
3 1/2 | 3.38"-3.60" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |
4 | 3.94"-4.10" | 5 | 12 | 2 5/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |