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 C are the easiest to grip. The handle has more surface area than that of our other styles. Style D lock with a padlock to limit access. They’re often used on monitoring wells. 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. 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 | ||||||||||
| 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 |
Stainless Steel Plate | ||||||||||
| 1/2 | 0.48"-0.55" | 10 | 24 | 1 11/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 5/8 | 0.57"-0.67" | 10 | 24 | 1 11/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 3/4 | 0.72"-0.80" | 10 | 24 | 1 11/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 7/8 | 0.82"-0.92" | 10 | 24 | 1 11/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 1 | 0.94"-1.05" | 5 | 12 | 2 7/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 1 1/4 | 1.21"-1.36" | 5 | 12 | 2 1/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 1 1/2 | 1.44"-1.65" | 2 | 5 | 2 9/16" | 0° to 175° | Buna-N Rubber | __ | __ | 0000000 | 00000 |
| 1 3/4 | 1.70"-1.80" | 5 | 12 | 2 7/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 2 | 1.96"-2.25" | 2 | 5 | 2 5/8" | 0° to 175° | Buna-N Rubber | __ | __ | 0000000 | 00000 |
| 2 1/4 | 2.22"-2.35" | 5 | 12 | 2 15/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 2 1/2 | 2.44"-2.60" | 5 | 12 | 2 13/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 2 3/4 | 2.63"-2.85" | 5 | 12 | 2 13/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 3 | 2.86"-3.25" | 2 | 5 | 2 11/16" | 0° to 175° | Buna-N Rubber | __ | __ | 0000000 | 00000 |
| __ | 3.13"-3.35" | 5 | 12 | 2 15/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 3 1/2 | 3.44"-3.60" | 5 | 12 | 2 15/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| __ | 3.69"-3.85" | 5 | 12 | 2 15/16" | 0° to 175° | Neoprene Rubber | __ | __ | 0000000 | 00000 |
| 4 | 3.78"-4.30" | 2 | 5 | 3 1/4" | 0° to 175° | Buna-N Rubber | __ | __ | 0000000 | 00000 |
| 5 | 4.62"-5.30" | 1 | 2 | 3 9/16" | 0° to 175° | Buna-N Rubber | __ | __ | 0000000 | 00000 |
| 6 | 5.62"-6.40" | 1 | 2 | 3 3/16" | 0° to 175° | Buna-N Rubber | __ | __ | 0000000 | 00000 |
Style B | ||||||||||
Yellow Plastic Plate | ||||||||||
| 1 1/2 | 1.48"-1.65" | 17 | 40 | 1 3/4" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 0000 |
| 2 | 1.90"-2.17" | 17 | 40 | 1 7/8" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 0000 |
| 3 | 2.80"-3.10" | 17 | 40 | 2 1/2" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 00000 |
| 4 | 3.80"-4.06" | 17 | 40 | 2 1/2" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 00000 |
| 6 | 5.77"-6.08" | 17 | 40 | 3 3/4" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 00000 |
| 8 | 7.70"-8.03" | 17 | 40 | 3 3/4" | -20° to 125° | Natural Rubber | __ | __ | 0000000 | 00000 |
Style C | ||||||||||
White Plastic Plate | ||||||||||
| 1/2 | 0.49"-0.60" | 100 | 230 | 2 3/8" | -40° to 180° | Natural Rubber | __ | __ | 0000000 | 00000 |
| 3/4 | 0.74"-0.90" | 100 | 230 | 2 1/2" | -40° to 180° | Natural Rubber | __ | __ | 0000000 | 00000 |
| 1 | 0.98"-1.20" | 100 | 230 | 2 1/2" | -40° to 180° | Natural Rubber | __ | __ | 0000000 | 00000 |
| 1 1/4 | 1.23"-1.45" | 50 | 115 | 2 1/2" | -40° to 180° | Natural Rubber | __ | __ | 0000000 | 00000 |
| 1 1/2 | 1.48"-1.75" | 50 | 115 | 2 1/2" | -40° to 180° | Natural Rubber | __ | __ | 0000000 | 00000 |
Style D | ||||||||||
Green Plastic Plate | ||||||||||
| 1 to 1 1/4 | 1.00"-1.38" | 6 | 15 | 2 1/2" | -20° to 125° | Buna-N Rubber | Padlockable | 5/16" | 00000000 | 00000 |
| 2 | 1.90"-2.31" | 6 | 15 | 2 1/2" | -20° to 125° | Buna-N Rubber | Padlockable | 5/16" | 00000000 | 00000 |
| 3 | 2.80"-3.10" | 6 | 15 | 2 5/8" | -20° to 125° | Buna-N Rubber | Padlockable | 5/16" | 00000000 | 00000 |
| 4 | 3.80"-4.38" | 6 | 15 | 3" | -20° to 125° | Buna-N Rubber | Padlockable | 5/16" | 00000000 | 00000 |
| 6 | 5.77"-6.08" | 6 | 15 | 4" | -20° to 125° | Buna-N Rubber | Padlockable | 5/16" | 00000000 | 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 |
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.
Styles E and F have a barbed bypass for quick connections to tubing.
Style H have a bypass with BSPP threads, also known as G threads, for making leak-tight connections.
Styles G, J, and K have a Schrader valve bypass. An internal spring holds the valve shut until you depress the pin, giving you control over air flow.
Style L have a GHT bypass that connects to standard garden hoses. Ideal for pipe cleanout, they allow for easy, controlled drainage.
For Pipe | Max. Back Pressure | Material | Bypass | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal | Bypass Cap | Hose Size | Pipe Size | Thread Type | Thread Size | Gender | For Tube ID | Tube Connection Type | Each | |
Style A | ||||||||||||||||
Aluminum Stem | ||||||||||||||||
| 1 1/2 | 1.53"-2.25" | 125 | 288 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | __ | 3/8 | NPS | __ | Male | __ | __ | 0000000 | 000000 |
| 2 | 1.79"-2.38" | 125 | 288 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | __ | 3/8 | NPS | __ | Male | __ | __ | 0000000 | 00000 |
| 3 | 2.77"-3.25" | 125 | 288 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | __ | 3/8 | NPS | __ | Male | __ | __ | 0000000 | 00000 |
| 4 | 3.85"-4.25" | 35 | 81 | 8 1/4" | -20° to 170° | Natural Rubber | Metal | __ | 1/2 | NPS | __ | Male | __ | __ | 0000000 | 00000 |
Style B | ||||||||||||||||
Steel Stem | ||||||||||||||||
| 6 | 5.80"-6.50" | 20 | 46 | 12" | 35° to 210° | Natural Rubber | Metal | __ | 1/2 | NPS | __ | Male | __ | __ | 0000000 | 000000 |
Style C | ||||||||||||||||
Iron Stem | ||||||||||||||||
| 1/2 | 0.47"-0.50" | Not Rated | 46 | 4 1/4" | 30° to 150° | Natural Rubber | Metal | __ | 1/16 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 3/4 | 0.72"-0.75" | Not Rated | 46 | 5 1/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/8 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 1 | 0.97"-1.00" | Not Rated | 46 | 5" | 30° to 150° | Natural Rubber | Metal | __ | 1/4 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 2 | 1.75"-2.00" | Not Rated | 34 | 10 3/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 3 | 2.75"-3.00" | Not Rated | 34 | 10 1/2" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 4 | 3.63"-4.00" | Not Rated | 23 | 10 1/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 5 | 4.50"-5.00" | Not Rated | 23 | 12 5/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 6 | 5.50"-6.00" | Not Rated | 23 | 12 1/2" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 8 | 7.50"-8.00" | Not Rated | 4 | 14 3/4" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 000000 |
| 10 | 9.50"-10.00" | Not Rated | 4 | 14 7/8" | 30° to 150° | Natural Rubber | Metal | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 000000 |
| 12 | 11.50"-12.00" | Not Rated | 4 | 14 5/8" | 30° to 150° | Natural Rubber | Metal | __ | 1 | NPT | __ | Male | __ | __ | 0000000 | 000000 |
Style D | ||||||||||||||||
Plastic Stem | ||||||||||||||||
| 1 1/2 | 1.42"-1.93" | 50 | 115 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 2 | 1.93"-2.36" | 40 | 92 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 2 1/2 | 2.40"-2.76" | 30 | 69 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 3 | 2.87"-3.31" | 15 | 34 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 4 | 3.54"-4.25" | 15 | 34 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 5 | 4.72"-5.37" | 12 | 27 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
| 6 | 5.50"-6.29" | 10 | 23 | 4 1/2" | -40° to 180° | Natural Rubber | Plastic | __ | 1/2 | NPT | __ | Male | __ | __ | 0000000 | 00000 |
Style E | ||||||||||||||||
Stainless Steel Stem | ||||||||||||||||
| 1/2 | 0.48"-0.53" | 10 | 24 | 3 1/2" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 5/8 | 0.60"-0.67" | 10 | 24 | 3 1/2" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 3/4 | 0.72"-0.79" | 10 | 24 | 3 1/2" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 7/8 | 0.81"-0.89" | 10 | 24 | 3 1/2" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
Style H | ||||||||||||||||
Plastic Stem | ||||||||||||||||
| 1/2 | 0.49"-0.60" | 100 | 231 | 2 15/16" | -40° to 180° | Natural Rubber | Plastic | __ | 1/8 | BSPP | __ | Male | __ | __ | 0000000 | 00000 |
| 3/4 | 0.74"-0.90" | 100 | 231 | 2 15/16" | -40° to 180° | Natural Rubber | Plastic | __ | 1/8 | BSPP | __ | Male | __ | __ | 0000000 | 00000 |
| 1 | 0.98"-1.20" | 100 | 231 | 2 15/16" | -40° to 180° | Natural Rubber | Plastic | __ | 1/8 | BSPP | __ | Male | __ | __ | 0000000 | 00000 |
| 1 1/4 | 1.23"-1.45" | 50 | 115 | 2 15/16" | -40° to 180° | Natural Rubber | Plastic | __ | 1/8 | BSPP | __ | Male | __ | __ | 0000000 | 00000 |
Style J | ||||||||||||||||
Steel Stem | ||||||||||||||||
| 3/4 | 0.72"-0.79" | 10 | 23 | 3 7/16" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
| 7/8 | 0.81"-0.89" | 10 | 23 | 3 5/8" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
Style K | ||||||||||||||||
Plastic Stem | ||||||||||||||||
| 1 1/2 | 1.50"-1.71" | 40 | 92 | 3 3/4" | Not Rated | PVC Plastic | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 0000000 | 00000 |
| 2 | 1.86"-2.06" | 30 | 69 | 3 3/4" | Not Rated | PVC Plastic | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 0000000 | 00000 |
| 3 | 2.84"-3.09" | 20 | 46 | 3 3/4" | Not Rated | PVC Plastic | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 0000000 | 00000 |
| 4 | 3.89"-4.15" | 10 | 23 | 3 3/4" | Not Rated | PVC Plastic | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 0000000 | 00000 |
Style L | ||||||||||||||||
Plastic Stem | ||||||||||||||||
| 1 1/2 | 1.50"-1.71" | 40 | 92 | 3 3/4" | Not Rated | PVC Plastic | Plastic | 3/4 | __ | GHT | __ | Male | __ | __ | 0000000 | 0000 |
| 2 | 1.86"-2.06" | 30 | 69 | 3 3/4" | Not Rated | PVC Plastic | Plastic | 3/4 | __ | GHT | __ | Male | __ | __ | 0000000 | 0000 |
| 3 | 2.84"-3.09" | 20 | 46 | 3 3/4" | Not Rated | PVC Plastic | Plastic | 3/4 | __ | GHT | __ | Male | __ | __ | 0000000 | 0000 |
| 4 | 3.89"-4.15" | 10 | 23 | 3 3/4" | Not Rated | PVC Plastic | Plastic | 3/4 | __ | GHT | __ | Male | __ | __ | 0000000 | 0000 |
Deep-Reach Wing Nut Expansion Plugs
Plate With
Brass Stem
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 stainless steel plate have excellent corrosion resistance.
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 | |
Stainless Steel Plate with Brass Stem | ||||||||
| 1/2 | 0.50"-0.60" | 17 | 40 | 11" | 0° to 125° | Neoprene Rubber | 0000000 | 000000 |
| 3/4 | 0.75"-0.86" | 17 | 40 | 11" | 0° to 125° | Neoprene Rubber | 0000000 | 00000 |
| 1 | 0.82"-0.93" | 17 | 40 | 11" | 0° to 125° | Neoprene Rubber | 0000000 | 00000 |
| 1 1/4 | 1.15"-1.35" | 17 | 40 | 11" | 0° to 125° | Neoprene Rubber | 0000000 | 00000 |
| 1 1/2 | 1.40"-1.65" | 17 | 40 | 11" | 0° to 125° | Neoprene Rubber | 0000000 | 00000 |
| 1 1/2 | 1.40"-1.65" | 17 | 40 | 17" | 0° to 125° | Neoprene Rubber | 0000000 | 00000 |
| 2 | 1.80"-2.15" | 17 | 40 | 11" | 0° to 125° | Natural Rubber | 0000000 | 00000 |
| 2 | 1.80"-2.15" | 17 | 40 | 17" | 0° to 125° | Natural Rubber | 0000000 | 00000 |
| 2 1/2 | 2.35"-2.55" | 17 | 40 | 11" | 0° to 125° | Natural Rubber | 0000000 | 00000 |
| 2 1/2 | 2.35"-2.55" | 17 | 40 | 17" | 0° to 125° | Natural Rubber | 0000000 | 00000 |
| 3 | 2.95"-3.15" | 17 | 40 | 11" | 0° to 125° | Natural Rubber | 0000000 | 00000 |
| 4 | 3.95"-4.04" | 17 | 40 | 11" | 0° to 125° | Natural Rubber | 0000000 | 000000 |
Plastic Plate | ||||||||
| 4 | 3.80"-4.06" | 17 | 40 | 2 1/2" | 0° to 125° | Natural Rubber | 0000000 | 00000 |
| 6 | 5.77"-6.08" | 17 | 40 | 3 3/4" | 0° to 125° | Natural Rubber | 0000000 | 00000 |
| 8 | 7.70"-8.03" | 17 | 40 | 3 3/4" | 0° to 125° | Natural Rubber | 0000000 | 00000 |