One & Two Seal
Expandable Rubber Plugs

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Ideal for use when temporarily or permanently plugging your heat exchanger, boiler or condenser tubes. USA Industries' Low & High Pressure Expanding Tube Plugs are tested to withstand pressure up to 100 PSI*, are resistant to oil & gasoline, thrive in temperatures from -45°F to 300°F, are easy to install with just a socket wrench, and are reusable and long-lasting with proper care.

*Dependent on surface roughness and plug size. Wire brushing the pipe or tube to a clean surface will give the best performance.

Plug Sizing Chart

Expanding One & Two Seal Plug Features

Plug Configurations

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Product Selection Guide

EP Seal Part Number Chart

Select by tube I.D. and pressure rating to find your part number

For Tube I.D.'s		Pressure Rating
		120 \| 150		120 \| 150
(in.)	(mm)	Internal Single Seal	Internal Double Seal	Flanged Single Seal	Flanged Double Seal
1/2 – 5/8	12 – 16	EP-IS-0.5	EP-ID-0.5	EP-FS-0.5	EP-FD-0.5
5/8 – 3/4	16 – 19	EP-IS-0.625	EP-ID-0.625	EP-FS-0.625	EP-FD-0.625
3/4 – 7/8	19 – 22	EP-IS-0.75	EP-ID-0.75	EP-FS-0.75	EP-FD-0.75
7/8 – 1	22 – 25	EP-IS-0.875	EP-ID-0.875	EP-FS-0.875	EP-FD-0.875
1 – 1-1/8	25 – 29	EP-IS-1.0	EP-ID-1.0	EP-FS-1.0	EP-FD-1.0
1-1/8 – 1-1/4	29 – 32	EP-IS-1.125	EP-ID-1.125	EP-FS-1.125	EP-FD-1.125
1-1/4 – 1-3/8	32 – 35	EP-IS-1.25	EP-ID-1.25	EP-FS-1.25	EP-FD-1.25
1-3/8 – 1-1/2	35 – 38	EP-IS-1.375	EP-ID-1.375	EP-FS-1.375	EP-FD-1.375
1-1/2 – 1-5/8	38 – 41	EP-IS-1.5	EP-ID-1.5	EP-FS-1.5	EP-FD-1.5
1-5/8 – 1-3/4	41 – 45	EP-IS-1.625	EP-ID-1.625	EP-FS-1.625	EP-FD-1.625
1-3/4 – 1-7/8	45 – 48	EP-IS-1.75	EP-ID-1.75	EP-FS-1.750	EP-FD-1.75
1-7/8 – 2	48 – 51	EP-IS-1.875	EP-ID-1.875	EP-FS-1.875	EP-FD-1.875
2 – 2-1/8	51 – 54	EP-IS-2.0	EP-ID-2.0	EP-FS-2.0	EP-FD-2.0
2-1/8 – 2-1/4	54 – 57	EP-IS-2.125	EP-ID-2.125	EP-FS-2.125	EP-FD-2.125
2-1/4 – 2-3/8	57 – 60	EP-IS-2.25	EP-ID-2.25	EP-FS-2.25	EP-FD-2.25

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INTERNAL SEAL AND FLANGED SEAL CONFIGURATIONS

Available in both internal seal and flanged seal configurations, you can get the expandable plug that fits your exact product needs. If you're working on a unit that creates a vacuum, our flanged seal expandable tube plug has a flange on the outer side of the plug that allows it to sit flush on the tubesheet, preventing any inward movement. Conversely, if your desired setup includes placing a tube plug at an exact location inside the tube, our internal seal plugs are ideal.

Both internal and flanged seal expanding plugs are available in single- or double-seal configurations. For maximum sealing effectiveness, we recommend our double-seal expanding tube plugs. All expansion plugs are made of neoprene and rated to 150 PSI when installed properly. Safety lanyards can be installed (at an additional cost) to assure operator's protection.

Grade K-2247-CF, ASTM-BC 412 45+/-5 Durometer hardness

Note: Always puncture the tube before installing any plug to ensure that pressure cannot build up in the tube and cause the plugs to loosen or blow out.