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.
For Styles F and G, twist the easy-grip T-handle to expand the seal.
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 | 00000 |
| 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 F | ||||||||||||||||
Stainless Steel Stem | ||||||||||||||||
| 1 | 0.94"-1.03" | 10 | 24 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 1 1/8 | 1.06"-1.17" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 1 1/4 | 1.21"-1.33" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| __ | 1.32"-1.45" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 1 1/2 | 1.44"-1.58" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 1 3/4 | 1.70"-1.87" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
| 2 | 1.92"-2.14" | 5 | 12 | 4" | -40° to 250° | Neoprene Rubber | __ | __ | __ | __ | __ | __ | 1/4" | Barbed | 0000000 | 000000 |
Style G | ||||||||||||||||
Steel Stem | ||||||||||||||||
| 1 | 0.94"-1.03" | 10 | 23 | 3 3/4" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
| 1 1/2 | 1.44"-1.58" | 10 | 23 | 4" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 000000 |
| 2 1/2 | 2.44"-2.71" | 5 | 12 | 4 15/16" | -40° to 210° | Neoprene Rubber | Plastic | __ | __ | Schrader | 0.305"-32 | __ | __ | __ | 00000000 | 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 |
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. | Chain Lg., ft. | Air, psi | Water, ft. of head | Required Inflation Pressure, psi | Pipe Size | Thread Type | Gender | Temp. Range, °F | Seal | Chain/Ring | Each | |
| 1 1/2 | 1.49"-1.88" | 1 3/8" | 3 13/16" | 1 | 22 | 50 | 40 | 1/4 | NPT | Male | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 0000000 |
| 2 | 1.88"-2.25" | 1 3/4" | 6" | 1 | 22 | 50 | 40 | 1/8 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 3 | 2.62"-3.25" | 2 1/2" | 8" | 1 | 22 | 50 | 40 | 1/2 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
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 | |
| 4 | 3.25"-4.25" | 3 1/8" | 8" | 22 | 50 | 40 | 3/4 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 0000000 |
| 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 | 000000 |
| 8 | 7.00"-8.25" | 6 3/4" | 10" | 13 | 30 | 35 | 3 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 10 | 9.00"-10.25" | 8 3/4" | 11 3/4" | 13 | 30 | 35 | 3 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 12 | 10.50"-12.25" | 10 1/4" | 13 3/4" | 13 | 30 | 35 | 3 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 16 | 14.00"-16.00" | 13 3/4" | 19 3/4" | 13 | 30 | 35 | 3 | NPT | Female | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 0000000 | 000000 |
| 12 to 24 | 11.25"-24.00" | 11" | 37" | 13 | 30 | 45 | 3 | NPT | Male | -20° to 125° | Natural Rubber | Zinc-Plated Steel | 00000000 | 00000000 |
Deep-Reach Hex Nut Expansion Plugs with Bypass
Plug your pipe from the inside. Insert these expansion plugs deep into your pipe, and then tighten the nut on the stem. Use the bypass tube to add air, water, and fluid or relieve back pressure. 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 technical drawings and 3-D models, click on a part number.
For Pipe | Max. Back Pressure | Bypass | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Pipe Size | Thread Type | Gender | Each | |
Zinc-Plated Steel Stem | |||||||||||
| 1/2 | 0.62"-0.64" | 250 | 576 | 4 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 0000000 |
| 3/4 | 0.81"-0.82" | 175 | 403 | 4 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 1 | 1.03"-1.05" | 175 | 403 | 6 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 1 1/4 | 1.37"-1.39" | 175 | 403 | 6 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 1 1/2 | 1.58"-1.61" | 75 | 173 | 6 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 2 | 2.03"-2.07" | 75 | 173 | 6 3/8" | -20° to 225° | Neoprene Rubber | 1/8 | NPT | Male | 0000000 | 000000 |
| 3 | 3.03"-3.13" | 50 | 115 | 4 3/8" | -20° to 225° | Neoprene Rubber | 1/4 | NPT | Male | 0000000 | 000000 |