Material Material |
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For Pipe Material For Pipe Material |
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Environment Environment |
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For Maximum Panel Thickness For MaximumPanel Thickness |
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System of Measurement System of Measurement |
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For Knockout Diameter For Knockout Diameter |
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Specifications Met Specifications Met |
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Edge Seal Style Edge Seal Style |
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![]() | Flat |
Length Length |
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Maximum Temperature Maximum Temperature |
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For Use With For Use With |
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Seal Construction Seal Construction |
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![]() | Solid |
For Use Outdoors For Use Outdoors |
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Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Flanges have excellent corrosion resistance to handle a wide range of acids and other highly-corrosive chemicals. Use in metal surface treating applications, plating solution lines, and other chemical process applications. They are reinforced with fiberglass layers for better strength and durability than any of our other pipe flanges for chemicals. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Flanges meet ANSI/ASME B16.5 and ASTM D4024 specifications and testing requirements for product dimensions, performance, and material quality.
To connect flanges to pipe, first sand the inside of the flange and the end of the pipe to remove the surface finish. Next, mix the adhesive (sold separately) until the color is uniform with no streaks. Apply a thin layer of mixed adhesive to the sanded area of the pipe, approximately 1/8” thick. Repeat this process with the inside of the flange, applying a layer approximately 1/16” thick. After sealant has been applied, push the flange onto the pipe until it is fully engaged. Make sure you align the bolt holes prior to installing to minimize rotation after the flange is installed. Finally, use the adhesive-curing heat cable (sold separately) to cure the adhesive. Wrap the tape around the pipe and flange at the joint, taking care to not overlap the tape. Once you have waited the full cure time, the pipe and flange will be ready to use.
Warning: Never use plastic pipe flanges and pipe with compressed air or gas.
Cap flanges are also known as blind flanges.
Pipe Size | Flange OD | For Bolt Dia. | Bolt Hole Dia. | Number of Bolt Holes | Bolt Circle Dia. | Material | Color | Max. Pressure | Each | |
1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | Fiberglass | Black | 300 psi @ 72° F | 0000000 | 0000000 |
2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | Fiberglass | Black | 250 psi @ 72° F | 0000000 | 000000 |
3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | Fiberglass | Black | 250 psi @ 72° F | 0000000 | 000000 |
4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | Fiberglass | Black | 150 psi @ 72° F | 0000000 | 000000 |
Pipe Cement (11.8-oz. Can) | 0000000 | Each | 000000 |
Voltage | Max. Heat Output, °F | Lg. | Wd. | Thick. | Plug Type | Cord Lg. | Each | |
120V AC | 270° | 6 ft. | 1" | 1/8" | Two Prong | 6 ft. | 0000000 | 0000000 |
Prevent water from entering unused knockouts and holes in enclosures and outlet boxes. Plugs are rated NEMA 4X and 6P as well as IP68 for protection from washdowns, corrosion, and water submersion.
For Knockout | ||||||||
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Trade Size | Dia. | Head Dia. | For Max. Panel Thick. | Material | Specifications Met | Color | Each | |
__ | 1/2"-13/16" | 1" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 00000 |
1/2 | 7/8" | 1 3/16" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 0000 |
1/2, 3/4 | 7/8"-1 9/32" | 1 1/2" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 0000 |
1, 1 1/4 | 1 3/8"-1 3/4" | 2" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 00000 |
1 1/2, 2 | 2"-2 9/16" | 2 3/4" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 00000 |
2 1/2 | 3" | 3 3/8" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 00000 |
3 | 3 5/8" | 4" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 00000 |
3 1/2 | 4 1/8" | 4 1/2" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 00000 |
4 | 4 5/8" | 5" | 1/4" | Fiberglass | UL Listed | Gray | 0000000 | 00000 |
These loosely-knitted fiberglass seals are more flexible and conformable than High-Temperature Slotted Edge Seals. Also known as drop-warp and bolt-hole tape, they have openings along the center to accommodate bolts and rivets. Use them on metal flanges, as well as on oven, furnace, and boiler doors. They resist grease, oil, hydraulic fluid, and solvents.
Adhesive-back seals will stay in place until you permanently secure them, making them the best choice when installing in confined spaces.
Wd. | Thick. | Lg., ft. | Max. Temp., °F | Max. Adhesive Temp., °F | For Use Outdoors | Color | Each | |
Fiberglass Fabric—Plain Back | ||||||||
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1" | 1/16" | 25 | 1000° | __ | No | White | 0000000 | 000000 |
1 1/2" | 1/16" | 25 | 1000° | __ | No | White | 0000000 | 00000 |
2" | 1/16" | 25 | 1000° | __ | No | White | 0000000 | 00000 |
2 1/2" | 1/16" | 25 | 1000° | __ | No | White | 0000000 | 00000 |
3" | 1/16" | 25 | 1000° | __ | No | White | 0000000 | 00000 |
Fiberglass Fabric—Adhesive Back | ||||||||
1" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
1 1/2" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
2" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
2 1/2" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
3" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
Made of fiberglass, these seals are woven tighter than High-Temperature Ultra-Conformable Slotted Edge Seals for increased durability. Also known as drop-warp and bolt-hole tape, they have openings along the center to accommodate bolts and rivets. Use them on metal flanges, as well as on oven, furnace, and boiler doors. They resist grease, oil, hydraulic fluid, and solvents.
Adhesive-back seals will stay in place until you permanently secure them, making them the best choice when installing in confined spaces.
Wd. | Thick. | Lg., ft. | Max. Temp., °F | Max. Adhesive Temp., °F | For Use Outdoors | Color | Each | |
Fiberglass Fabric—Plain Back | ||||||||
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1" | 1/16" | 25 | 1000° | __ | No | White | 000000 | 00000 |
1" | 1/8" | 25 | 1000° | __ | No | White | 0000000 | 0000 |
1 1/2" | 1/16" | 25 | 1000° | __ | No | White | 000000 | 0000 |
1 1/2" | 1/8" | 25 | 1000° | __ | No | White | 0000000 | 0000 |
2" | 1/16" | 25 | 1000° | __ | No | White | 000000 | 0000 |
2" | 1/8" | 25 | 1000° | __ | No | White | 0000000 | 00000 |
2 1/2" | 1/16" | 25 | 1000° | __ | No | White | 000000 | 0000 |
2 1/2" | 1/8" | 25 | 1000° | __ | No | White | 0000000 | 00000 |
3" | 1/16" | 25 | 1000° | __ | No | White | 000000 | 0000 |
3" | 1/8" | 25 | 1000° | __ | No | White | 0000000 | 00000 |
Fiberglass Fabric—Adhesive Back | ||||||||
1" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 0000 |
1" | 1/8" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
1 1/2" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
1 1/2" | 1/8" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
2" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
2" | 1/8" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
2 1/2" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
2 1/2" | 1/8" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
3" | 1/16" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |
3" | 1/8" | 25 | 1000° | 150° | No | White | 0000000 | 00000 |