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For Pipe Schedule For Pipe Schedule |
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Pressure Class Pressure Class |
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Bolt Circle Diameter Bolt Circle Diameter |
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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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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Maximum Vacuum Maximum Vacuum |
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How to Identify and Measure Fittings
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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Thick-Wall Plastic Pipe Flanges for Water
- For Use With: Drinking Water, Water
- Pressure Class: 150
- Maximum Temperature: 140° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
- Fittings: Use Schedule 80 PVC Plastic
Also known as Pressure Class 150 flanges, these flanges have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. They meet NSF/ANSI 61 for drinking water. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. All are PVC, which has good corrosion resistance. They meet ASTM D1784 specifications and testing requirements for material quality.
Warning: Never use plastic pipe flanges and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.
Cap flanges are also known as blind flanges.
Bolt Hole | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. | Bolt Circle Dia. | Material | Color | Each | |
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | PVC Plastic | Dark Gray | 00000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 5 | 10 1/16" | 3/4" | 7/8" | 8 | 8 1/2" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | PVC Plastic | Dark Gray | 00000000 | 000000 |
| 10 | 16" | 7/8" | 1" | 12 | 14 1/4" | PVC Plastic | Light Gray | 00000000 | 000000 |
| 12 | 19" | 7/8" | 1" | 12 | 17" | PVC Plastic | Light Gray | 00000000 | 000000 |
CPVC Pipe Flanges for Hot Water
- For Use With: Acetic Acid (10%), Calcium Chloride, Deionized Water, Drinking Water, Hydrochloric Acid (25%), Phosphoric Acid (85%), Salt Water, Sulfuric Acid (75%), Water,
Fixed Cap Flanges: Acetic Acid (10%), Calcium Chloride, Deionized Water, Drinking Water, Hydrochloric Acid (25%), Nitric Acid (10%), Phosphoric Acid (85%), Salt Water, Sulfuric Acid (75%), Water - Pressure Class: 150
- Maximum Temperature: 200° F
- Specifications Met: ASTM D1784, NSF/ANSI 61
- Pipe Nipples and Pipe: Use Schedule 80 CPVC Plastic
- Fittings: Use Schedule 80 CPVC Plastic
Made of CPVC, these flanges can handle high temperatures up to 200° F. They meet NSF/ANSI Standard 61 for drinking water. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. Also known as Pressure Class 150 flanges, they have thick, strong walls to handle heavy duty industrial plumbing and water supply applications, such as water processing and waste water treatment. Flanges have good corrosion resistance. They meet ASTM D1784 specifications and testing requirements for material quality. They are comparable to Corzan.
Warning: Never use plastic pipe flanges and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local regulatory limits on VOCs (Volatile Organic Compounds).
For technical drawings and 3-D models, click on a part number.
Cap flanges are also known as blind flanges.
Bolt Hole | ||||||||
|---|---|---|---|---|---|---|---|---|
| Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Color | Each | |
| 1/2 | 3 1/2" | 1/2" | 5/8" | 4 | 2 3/8" | Light Gray | 00000000 | 000000 |
| 3/4 | 3 7/8" | 1/2" | 5/8" | 4 | 2 3/4" | Light Gray | 00000000 | 00000 |
| 1 | 4 1/4" | 1/2" | 5/8" | 4 | 3 1/8" | Light Gray | 00000000 | 00000 |
| 1 1/4 | 4 5/8" | 1/2" | 5/8" | 4 | 3 1/2" | Light Gray | 00000000 | 00000 |
| 1 1/2 | 5" | 1/2" | 5/8" | 4 | 3 7/8" | Light Gray | 00000000 | 00000 |
| 2 | 6" | 5/8" | 3/4" | 4 | 4 3/4" | Light Gray | 00000000 | 00000 |
| 2 1/2 | 7" | 5/8" | 3/4" | 4 | 5 1/2" | Light Gray | 00000000 | 000000 |
| 3 | 7 1/2" | 5/8" | 3/4" | 4 | 6" | Light Gray | 00000000 | 00000 |
| 4 | 9" | 5/8" | 3/4" | 8 | 7 1/2" | Light Gray | 00000000 | 00000 |
| 6 | 11" | 3/4" | 7/8" | 8 | 9 1/2" | Light Gray | 00000000 | 000000 |
| 8 | 13 1/2" | 3/4" | 7/8" | 8 | 11 3/4" | Light Gray | 00000000 | 000000 |
UV-Resistant Polypropylene Pipe Flanges for Chemicals
- For Use With: Acetic Acid (5%), Calcium Chloride, Hydrochloric Acid (10%), Phosphoric Acid (85%), Salt Water, Sodium Hydroxide, Sulfuric Acid (30%), Water
- Temperature Range: See Table
- Pipe Nipples and Pipe: Use Schedule 80 Polypropylene Plastic
- Fittings: Use Schedule 80 Polypropylene Plastic
Use these polypropylene flanges in outdoor environments—they resist the damaging effects of ultraviolet light. Flanges have the chemical resistance to stand up to a wide variety of acids, solvents, and other harsh substances. Also known as Pressure Class 150 flanges, they have thick, strong walls for heavy duty chemical processing applications. Bolt two same-size flanges together with a gasket (sold separately) to create an access point within a line. When connecting to pipe, apply a non-hardening, plastic-compatible sealant to the male pipe threads to prevent leaks. Tape or sealants with PTFE are not recommended for plastic-to-plastic threaded connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the flange, then wrench-tighten one to two turns.
Warning: Never use plastic pipe flanges and pipe with compressed air or gas.
Sealants cannot be sold to Colorado, Connecticut, District of Columbia, Delaware, Illinois, Indiana, Massachusetts, Maryland, Maine, Michigan, New Hampshire, New Jersey, Northern Virginia, New York, Ohio, Pennsylvania, Rhode Island, or Utah due to local VOC (Volatile Organic Compounds) regulations.
For technical drawings and 3-D models, click on a part number.
Cap flanges are also known as blind flanges.
| Pipe Size | Flanged Connection Surface | Flange OD | For Bolt Dia. | Bolt Hole Dia. | Number of Bolt Holes | Bolt Circle Dia. | Material | Color | Max. Pressure | Temperature Range, °F | Each | |
| 2 | Flat | 6" | 5/8" | 3/4" | 4 | 4 3/4" | Polypropylene Plastic | Black | Not Rated | 0° to 150° | 00000000 | 000000 |
| 3 | Flat | 7 1/2" | 5/8" | 3/4" | 4 | 6" | Polypropylene Plastic | Black | Not Rated | 0° to 150° | 00000000 | 00000 |
| 4 | Raised | 8 7/8" | 5/8" | 3/4" | 8 | 7 1/2" | Polypropylene Plastic | Black | Not Rated | 32° to 120° | 00000000 | 000000 |
Fiberglass Pipe Flanges for Corrosive Chemicals
- For Use With: Acetic Acid (75%), Alcohol, Calcium Chloride, Chlorine, Fuel Oil, Gasoline, Hydrochloric Acid (37%), Nitric Acid (10%), Oil, Phosphoric Acid, Salt Water (30%), Sodium Hydroxide (50%), Solvents, Sulfuric Acid (70%), Water
- Temperature Range: 32° to 200° F
- Specifications Met: ASTM D4024
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 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.
For technical drawings and 3-D models, click on a part number.
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-fl. 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 |