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For Shape For Shape |
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 | Round |
System of Measurement System of Measurement |
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Cap Type Cap Type |
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Plug Type Plug Type |
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Maximum Temperature Maximum Temperature |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Hardness Hardness |
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Metal Round Caps
More durable than plastic caps, these provide the most protection from abrasion and impact.
Steel caps are stronger than aluminum.
Aluminum caps have good corrosion resistance, are lightweight, and are nonmagnetic.
Stainless steel caps have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Tapered Caps
These flexible plastic caps are tapered to fit a variety of unthreaded and threaded objects.
For technical drawings and 3-D models, click on a part number.
| For OD | For Pipe Size | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Flexible Polyethylene Plastic | |||||||
|---|---|---|---|---|---|---|---|
| 0.613"-0.693" | 3/8 | 1/2" | 150° | Red | 100 | 0000000 | 00000 |
High-Temperature Tapered Caps
Made of silicone, these caps withstand temperatures of 450° F for electroplating, paint-baking, and powder-coating applications. All of these flexible caps are tapered to fit a variety of unthreaded and threaded objects.
For technical drawings and 3-D models, click on a part number.
| For OD | For Pipe Size | For Thread Type | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
For Unthreaded Pipe and NPT Tapered-Thread Pipe | ||||||||
|---|---|---|---|---|---|---|---|---|
Flexible Silicone Rubber | ||||||||
| 0.356"-0.422" | 3/8 | NPT | 0.38" | 450° | Red | 10 | 0000000 | 00000 |
Tear-Tab Caps
Push these caps onto pipe and fittings, then tear their tab to break the seal for easy removal.
For technical drawings and 3-D models, click on a part number.
| For OD | For Pipe Size | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Rigid Polyethylene Plastic | |||||||
|---|---|---|---|---|---|---|---|
For NPT Tapered-Thread Pipe and Unthreaded Pipe | |||||||
| 0.643" | 3/8 | 15/32" | 150° | Blue | 100 | 0000000 | 00000 |
Squeeze Top Caps
Squeeze the dome top to remove these caps. Commonly used as thread protectors, they are made of flexible vinyl that conforms for a snug fit.
For technical drawings and 3-D models, click on a part number.
| For OD | For Thread Dia. | For Pipe Size | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Flexible Vinyl Plastic | ||||||||
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Caps for Straight-Thread Pipe, NPT Tapered-Thread Pipe, and Unthreaded Pipe | ||||||||
| 0.513" | 9/16" | 3/8 | 1/2" | 180° | Red | 100 | 0000000 | 00000 |
Round Plugs
The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes.
For technical drawings and 3-D models, click on a part number.
| For ID | For Thread Dia. | For Pipe Size | Ht. | Flange Dia. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
Vinyl Plastic | ||||||||||
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For NPT Tapered-Thread Pipe and Straight-Thread Pipe | ||||||||||
| 0.66" | 5/8" | 3/8 | 1/2" | 27/32" | 180° | Durometer 75A | Red | 100 | 0000000 | 00000 |
Hollow Tapered Plugs
The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters. Use the flange to remove them with ease.
For technical drawings and 3-D models, click on a part number.
| For Pipe Size | For Thread Dia. | For ID | Ht. | Flange Dia. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
Polyethylene Plastic | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Unthreaded Pipe | ||||||||||
| 3/8 | __ | 0.33"-0.396" | 3/8" | 17/32" | 150° | Durometer 45D | Red | 100 | 0000000 | 00000 |
For Unthreaded and Straight-Thread Pipe | ||||||||||
| 3/8 | 9/16" | 0.471"-0.547" | 7/16" | 11/16" | 150° | Durometer 45D | Red | 100 | 00000000 | 0000 |
For NPT Tapered-Thread Pipe | ||||||||||
| 3/8 | __ | 0.55"-0.631" | 15/32" | 3/4" | 150° | Durometer 45D | Red | 100 | 00000000 | 0000 |
Pull-Ring Tapered Plugs
Pull the two built-in rings to quickly remove these plugs. All are tapered to fit a range of hole diameters.
For technical drawings and 3-D models, click on a part number.
| For Pipe Size | For ID | Ht. | Ring Dia. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
Polyethylene Plastic | |||||||||
|---|---|---|---|---|---|---|---|---|---|
For NPT Tapered-Thread Pipe | |||||||||
| 3/8 | 9/16"-5/8" | 3/8" | 31/32" | 150° | Durometer 43D | Blue | 100 | 00000000 | 00000 |
Hollow High-Temperature Tapered Plugs
The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters. Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 450° F for 20 minutes. Use the flange to remove them with ease.
For technical drawings and 3-D models, click on a part number.
| For Pipe Size | For ID | Ht. | Flange Dia. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
Silicone Rubber | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 3/8 | 0.361"-0.418" | 3/8" | 19/32" | 450° | Durometer 70A | Red | 10 | 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.
For technical drawings and 3-D models, click on a part number.
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.
For Pipe | Max. Back Pressure | |||||||
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| Size | ID | Air, psi | Water, ft. of head | O'all Ht. | Temp. Range, °F | Seal Material | Each | |
Style A | ||||||||
Stainless Steel Plate | ||||||||
| 3/8 | 0.36"-0.39" | 10 | 24 | 13/16" | -40° to 250° | Neoprene Rubber | 0000000 | 00000 |