ASME/ANSI B16.5 Threaded Flanges
Our company provides ASME/ANSI B16.5 Threaded Flanges.
The threaded flange has a threaded bore, which allows it to be screwed onto the pipe. It is commonly used in low-pressure applications and is easy to install and remove. However, threaded flanges may not be suitable for high-pressure applications due to the risk of leaks from the threads.
ASME/ANSI B16.5 Threaded Flanges
ASME/ANSI B16.5 Class 150 Threaded Flanges
(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/16″ raised face unless otherwise specified. For more alternate flange facings, please click here!
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Hub Diameter (X) | Thickness (T) | Length Thru Hub (Y) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3.50 | 2.38 | 1.38 | 4 | 0.62 | 1.19 | 0.38 | 0.56 | 1 |
| 3/4 | 3.88 | 2.75 | 1.69 | 4 | 0.62 | 1.50 | 0.44 | 0.56 | 2 |
| 1 | 4.25 | 3.12 | 2.00 | 4 | 0.62 | 1.94 | 0.50 | 0.62 | 2 |
| 1 1/4 | 4.62 | 3.50 | 2.50 | 4 | 0.62 | 2.31 | 0.56 | 0.75 | 3 |
| 1 1/2 | 5.00 | 3.88 | 2.88 | 4 | 0.62 | 2.56 | 0.62 | 0.81 | 3 |
| 2 | 6.00 | 4.75 | 3.62 | 4 | 0.75 | 3.06 | 0.69 | 0.94 | 5 |
| 2 1/2 | 7.00 | 5.50 | 4.12 | 4 | 0.75 | 3.56 | 0.81 | 1.06 | 7 |
| 3 | 7.50 | 6.00 | 5.00 | 4 | 0.75 | 4.25 | 0.88 | 1.12 | 8 |
| 3 1/2 | 8.50 | 7.00 | 5.50 | 8 | 0.75 | 4.81 | 0.88 | 1.19 | 11 |
| 4 | 9.00 | 7.50 | 6.19 | 8 | 0.75 | 5.31 | 0.88 | 1.25 | 13 |
| 5 | 10.00 | 8.50 | 7.31 | 8 | 0.88 | 6.44 | 0.88 | 1.38 | 15 |
| 6 | 11.00 | 9.50 | 8.50 | 8 | 0.88 | 7.56 | 0.94 | 1.50 | 19 |
| 8 | 13.50 | 11.75 | 10.62 | 8 | 0.88 | 9.69 | 1.06 | 1.69 | 30 |
| 10 | 16.00 | 14.25 | 12.75 | 12 | 1.00 | 12.00 | 1.12 | 1.88 | 43 |
| 12 | 19.00 | 17.00 | 15.00 | 12 | 1.00 | 14.38 | 1.19 | 2.12 | 64 |
| 14 | 21.00 | 18.75 | 16.25 | 12 | 1.12 | 15.75 | 1.31 | 2.19 | 90 |
| 16 | 23.50 | 21.25 | 18.50 | 16 | 1.12 | 18.00 | 1.38 | 2.44 | 98 |
| 18 | 25.00 | 22.75 | 21.00 | 16 | 1.25 | 19.88 | 1.50 | 2.62 | 130 |
| 20 | 27.50 | 25.00 | 23.00 | 20 | 1.25 | 22.00 | 1.62 | 2.81 | 165 |
| 22 | 29.50 | 27.25 | 25.25 | 20 | 1.38 | 24.00 | 1.75 | 3.06 | 185 |
| 24 | 32.00 | 29.50 | 27.25 | 20 | 1.38 | 26.12 | 1.81 | 3.19 | 220 |
ASME/ANSI B16.5 Class 300 Threaded Flanges
(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/16″ raised face unless otherwise specified. For more alternate flange facings, please click here!
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Hub Diameter (X) | Thickness (T) | Length Thru Hub (Y) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3.75 | 2.62 | 1.38 | 4 | 0.63 | 1.50 | 0.50 | 0.81 | 2 |
| 3/4 | 4.62 | 3.25 | 1.69 | 4 | 0.75 | 1.88 | 0.56 | 0.94 | 3 |
| 1 | 4.88 | 3.50 | 2.00 | 4 | 0.75 | 2.12 | 0.62 | 1.00 | 3 |
| 1 1/4 | 5.25 | 3.88 | 2.50 | 4 | 0.75 | 2.50 | 0.69 | 1.00 | 4 |
| 1 1/2 | 6.12 | 4.50 | 2.88 | 4 | 0.88 | 2.75 | 0.75 | 1.13 | 6 |
| 2 | 6.50 | 5.00 | 3.62 | 8 | 0.75 | 3.31 | 0.81 | 1.25 | 7 |
| 2 1/2 | 7.50 | 5.88 | 4.12 | 8 | 0.88 | 3.94 | 0.94 | 1.44 | 10 |
| 3 | 8.25 | 6.62 | 5.00 | 8 | 0.88 | 4.62 | 1.06 | 1.63 | 13 |
| 3 1/2 | 9.00 | 7.25 | 5.50 | 8 | 0.88 | 5.25 | 1.12 | 1.69 | 17 |
| 4 | 10.00 | 7.88 | 6.19 | 8 | 0.88 | 5.75 | 1.19 | 1.82 | 22 |
| 5 | 11.00 | 9.25 | 7.31 | 8 | 0.88 | 7.00 | 1.31 | 1.94 | 28 |
| 6 | 12.50 | 10.62 | 8.50 | 12 | 0.88 | 8.12 | 1.38 | 2.00 | 39 |
| 8 | 15.00 | 13.00 | 10.62 | 12 | 1.00 | 10.25 | 1.56 | 2.38 | 58 |
| 10 | 17.50 | 15.25 | 12.75 | 16 | 1.13 | 12.62 | 1.81 | 2.56 | 81 |
| 12 | 20.50 | 17.75 | 15.00 | 16 | 1.25 | 14.75 | 1.94 | 2.82 | 115 |
| 14 | 23.00 | 20.25 | 16.25 | 20 | 1.25 | 16.75 | 2.06 | 2.94 | 165 |
| 16 | 25.50 | 22.50 | 18.50 | 20 | 1.38 | 19.00 | 2.19 | 3.19 | 190 |
| 18 | 28.00 | 24.75 | 21.00 | 24 | 1.38 | 21.00 | 2.31 | 3.44 | 250 |
| 20 | 30.50 | 27.00 | 23.00 | 24 | 1.38 | 23.12 | 2.44 | 3.69 | 315 |
| 22 | 33.00 | 29.25 | 25.25 | 24 | 1.63 | 25.25 | 2.56 | 3.94 | 370 |
| 24 | 36.00 | 32.00 | 27.25 | 24 | 1.63 | 27.62 | 2.69 | 4.13 | 475 |
ASME/ANSI B16.5 Class 400 Threaded Flanges
(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Hub Diameter (X) | Thickness (T) | Length Thru Hub (Y) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3.75 | 2.62 | 1.38 | 4 | 0.63 | 1.50 | 0.56 | 0.88 | 2 |
| 3/4 | 4.62 | 3.25 | 1.69 | 4 | 0.75 | 1.88 | 0.62 | 1.00 | 3 |
| 1 | 4.88 | 3.50 | 2.00 | 4 | 0.75 | 2.12 | 0.69 | 1.06 | 4 |
| 1 1/4 | 5.25 | 3.88 | 2.50 | 4 | 0.75 | 2.50 | 0.81 | 1.12 | 5 |
| 1 1/2 | 6.12 | 4.50 | 2.88 | 4 | 0.88 | 2.75 | 0.88 | 1.25 | 7 |
| 2 | 6.50 | 5.00 | 3.62 | 8 | 0.75 | 3.31 | 1.00 | 1.44 | 9 |
| 2 1/2 | 7.50 | 5.88 | 4.12 | 8 | 0.88 | 3.94 | 1.12 | 1.62 | 13 |
| 3 | 8.25 | 6.62 | 5.00 | 8 | 0.88 | 4.62 | 1.25 | 1.81 | 16 |
| 3 1/2 | 9.00 | 7.25 | 5.50 | 8 | 1.00 | 5.25 | 1.38 | 1.94 | 21 |
| 4 | 10.00 | 7.88 | 6.19 | 8 | 1.00 | 5.75 | 1.38 | 2.00 | 26 |
| 5 | 11.00 | 9.25 | 7.31 | 8 | 1.00 | 7.00 | 1.50 | 2.12 | 31 |
| 6 | 12.50 | 10.62 | 8.50 | 12 | 1.00 | 8.12 | 1.62 | 2.25 | 44 |
| 8 | 15.00 | 13.00 | 10.62 | 12 | 1.13 | 10.25 | 1.88 | 2.69 | 67 |
| 10 | 17.50 | 15.25 | 12.75 | 16 | 1.25 | 12.62 | 2.12 | 2.88 | 91 |
| 12 | 20.50 | 17.75 | 15.00 | 16 | 1.38 | 14.75 | 2.25 | 3.12 | 130 |
| 14 | 23.00 | 20.25 | 16.25 | 20 | 1.38 | 16.75 | 2.38 | 3.31 | 180 |
| 16 | 25.50 | 22.50 | 18.50 | 20 | 1.50 | 19.00 | 2.50 | 3.69 | 235 |
| 18 | 28.00 | 24.75 | 21.00 | 24 | 1.50 | 21.00 | 2.62 | 3.88 | 285 |
| 20 | 30.50 | 27.00 | 23.00 | 24 | 1.63 | 23.13 | 2.75 | 4.00 | 345 |
| 22 | 33.00 | 29.25 | 25.25 | 24 | 1.75 | 25.25 | 2.88 | 4.25 | 405 |
| 24 | 36.00 | 32.00 | 27.25 | 24 | 1.88 | 27.62 | 3.00 | 4.50 | 510 |
ASME/ANSI B16.5 Class 600 Threaded Flanges
(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Hub Diameter (X) | Thickness (T) | Length Thru Hub (Y) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 3.75 | 2.62 | 1.38 | 4 | 0.63 | 1.50 | 0.56 | 0.88 | 2 |
| 3/4 | 4.62 | 3.25 | 1.69 | 4 | 0.75 | 1.88 | 0.62 | 1.00 | 3 |
| 1 | 4.88 | 3.50 | 2.00 | 4 | 0.75 | 2.12 | 0.69 | 1.06 | 4 |
| 1 1/4 | 5.25 | 3.88 | 2.50 | 4 | 0.75 | 2.50 | 0.81 | 1.12 | 5 |
| 1 1/2 | 6.12 | 4.50 | 2.88 | 4 | 0.88 | 2.75 | 0.88 | 1.25 | 7 |
| 2 | 6.50 | 5.00 | 3.62 | 8 | 0.75 | 3.31 | 1.00 | 1.44 | 9 |
| 2 1/2 | 7.50 | 5.88 | 4.12 | 8 | 0.88 | 3.94 | 1.12 | 1.62 | 13 |
| 3 | 8.25 | 6.62 | 5.00 | 8 | 0.88 | 4.62 | 1.25 | 1.81 | 16 |
| 3 1/2 | 9.00 | 7.25 | 5.50 | 8 | 1 | 5.25 | 1.38 | 1.94 | 21 |
| 4 | 10.75 | 8.50 | 6.19 | 8 | 1 | 6.00 | 1.50 | 2.12 | 37 |
| 5 | 13.00 | 10.50 | 7.31 | 8 | 1.13 | 7.44 | 1.75 | 2.38 | 63 |
| 6 | 14.00 | 11.50 | 8.50 | 12 | 1.13 | 8.75 | 1.88 | 2.62 | 80 |
| 8 | 16.50 | 13.75 | 10.62 | 12 | 1.25 | 10.75 | 2.19 | 3.00 | 115 |
| 10 | 20.00 | 17.00 | 12.75 | 16 | 1.38 | 13.50 | 2.50 | 3.38 | 170 |
| 12 | 22.00 | 19.25 | 15.00 | 20 | 1.38 | 15.75 | 2.62 | 3.62 | 200 |
| 14 | 23.75 | 20.75 | 16.25 | 20 | 1.5 | 17.00 | 2.75 | 3.69 | 230 |
| 16 | 27.00 | 23.75 | 18.50 | 20 | 1.63 | 19.50 | 3.00 | 4.19 | 330 |
| 18 | 29.25 | 25.75 | 21.00 | 20 | 1.75 | 21.50 | 3.25 | 4.62 | 400 |
| 20 | 32.00 | 28.50 | 23.00 | 24 | 1.75 | 24.00 | 3.50 | 5.00 | 510 |
| 22 | 34.25 | 30.62 | 25.25 | 24 | 1.88 | 26.25 | 3.75 | 5.25 | 590 |
| 24 | 37.00 | 33.00 | 27.25 | 24 | 2 | 28.25 | 4.00 | 5.50 | 730 |
ASME/ANSI B16.5 Class 900 Threaded Flanges
(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Hub Diameter (X) | Thickness (T) | Length Thru Hub (Y) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 4.75 | 3.25 | 1.38 | 4 | 0.88 | 1.50 | 0.88 | 1.25 | 4 |
| 3/4 | 5.12 | 3.50 | 1.69 | 4 | 0.88 | 1.75 | 1.00 | 1.38 | 5 |
| 1 | 5.88 | 4.00 | 2.00 | 4 | 1.00 | 2.06 | 1.12 | 1.62 | 8 |
| 1 1/4 | 6.25 | 4.38 | 2.50 | 4 | 1.00 | 2.50 | 1.12 | 1.62 | 9 |
| 1 1/2 | 7.00 | 4.88 | 2.88 | 4 | 1.13 | 2.75 | 1.25 | 1.75 | 12 |
| 2 | 8.50 | 6.50 | 3.62 | 8 | 1.00 | 4.12 | 1.50 | 2.25 | 25 |
| 2 1/2 | 9.62 | 7.50 | 4.12 | 8 | 1.13 | 4.88 | 1.62 | 2.50 | 36 |
| 3 | 9.50 | 7.50 | 5.00 | 8 | 1.00 | 5.00 | 1.50 | 2.12 | 26 |
| 4 | 11.50 | 9.25 | 6.19 | 8 | 1.25 | 6.25 | 1.75 | 2.75 | 53 |
| 5 | 13.75 | 11.00 | 7.31 | 8 | 1.38 | 7.50 | 2.00 | 3.12 | 83 |
| 6 | 15.00 | 12.50 | 8.50 | 12 | 1.25 | 9.25 | 2.19 | 3.38 | 110 |
| 8 | 18.50 | 15.50 | 10.62 | 12 | 1.50 | 11.75 | 2.50 | 4.00 | 170 |
| 10 | 21.50 | 18.50 | 12.75 | 16 | 1.50 | 14.50 | 2.75 | 4.25 | 245 |
| 12 | 24.00 | 21.00 | 15.00 | 20 | 1.50 | 16.50 | 3.12 | 4.62 | 325 |
| 14 | 25.25 | 22.00 | 16.25 | 20 | 1.63 | 17.75 | 3.38 | 5.12 | 400 |
| 16 | 27.75 | 24.25 | 18.50 | 20 | 1.75 | 20.00 | 3.50 | 5.25 | 425 |
| 18 | 31.00 | 27.00 | 21.00 | 20 | 2.00 | 22.25 | 4.00 | 6.00 | 600 |
| 20 | 33.75 | 29.50 | 23.00 | 20 | 2.13 | 24.50 | 4.25 | 6.25 | 730 |
| 24 | 41.00 | 35.50 | 27.25 | 20 | 2.63 | 29.50 | 5.50 | 8.00 | 1400 |
ASME/ANSI B16.5 Class 1500 Threaded Flanges
(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Hub Diameter (X) | Thickness (T) | Length Thru Hub (Y) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 4.75 | 3.25 | 1.38 | 4 | 0.88 | 1.50 | 0.88 | 1.25 | 4 |
| 3/4 | 5.12 | 3.50 | 1.69 | 4 | 0.88 | 1.75 | 1.00 | 1.38 | 5 |
| 1 | 5.88 | 4.00 | 2.00 | 4 | 1.00 | 2.06 | 1.12 | 1.62 | 8 |
| 1 1/4 | 6.25 | 4.38 | 2.50 | 4 | 1.00 | 2.50 | 1.12 | 1.62 | 9 |
| 1 1/2 | 7.00 | 4.88 | 2.88 | 4 | 1.13 | 2.75 | 1.25 | 1.75 | 12 |
| 2 | 8.50 | 6.50 | 3.62 | 8 | 1.00 | 4.12 | 1.50 | 2.25 | 25 |
| 2 1/2 | 9.62 | 7.50 | 4.12 | 8 | 1.13 | 4.88 | 1.62 | 2.50 | 36 |
ASME/ANSI B16.5 Class 1500 Threaded Flanges
(a)All dimensions are in inches.
(b)These flanges will be furnished with a 1/4″ raised face unless otherwise specified. For more alternate flange facings, please click here!
| Nominal Pipe Size | Outside Diameter (O) | Bolt Circle (W) | Raised Face Diameter (R) | Number of Holes | Diameter of Holes | Hub Diameter (X) | Thickness (T) | Length Thru Hub (Y) | Approximate Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 4.75 | 3.25 | 1.38 | 4 | 0.88 | 1.50 | 0.88 | 1.25 | 4 |
| 3/4 | 5.12 | 3.50 | 1.69 | 4 | 0.88 | 1.75 | 1.00 | 1.38 | 5 |
| 1 | 5.88 | 4.00 | 2.00 | 4 | 1.00 | 2.06 | 1.12 | 1.62 | 8 |
| 1 1/4 | 6.25 | 4.38 | 2.50 | 4 | 1.00 | 2.50 | 1.12 | 1.62 | 9 |
| 1 1/2 | 7.00 | 4.88 | 2.88 | 4 | 1.13 | 2.75 | 1.25 | 1.75 | 12 |
| 2 | 8.50 | 6.50 | 3.62 | 8 | 1.00 | 4.12 | 1.50 | 2.25 | 25 |
| 2 1/2 | 9.62 | 7.50 | 4.12 | 8 | 1.13 | 4.88 | 1.62 | 2.50 | 36 |
Here is a table outlining the specifications and characteristics of ASME/ANSI B16.5 Threaded Flanges:
| Specification/Feature | Description |
|---|---|
| Standard | ASME/ANSI B16.5 Threaded Flange. |
| Type | Threaded Flange – A type of flange with internal threads that allow it to be screwed onto the external threads of pipes or fittings, providing a secure connection. |
| Pressure Ratings | Available in different pressure classes, such as 150, 300, 600, 900, 1500, 2500, etc., to accommodate varying pressure requirements. |
| Size Range | Typically available in sizes ranging from 1/2 inches to 24 inches or larger, suitable for various pipe and equipment sizes. |
| Materials | ASME/ANSI B16.5 Threaded Flanges can be manufactured from materials like carbon steel, stainless steel, alloy steel, and more, chosen based on application requirements. |
| Facing Types | Common facing types include Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), and Male and Female (M&F) facings, impacting sealing methods. |
| Bolt Hole Quantity and Diameter | The number and diameter of bolt holes vary with flange size and pressure rating, facilitating flange connection. |
| Connection Method | ASME/ANSI B16.5 Threaded Flanges create a secure connection by screwing the flange onto the external threads of pipes or fittings. |
| Application Areas | Threaded Flanges are commonly used in industries where a reliable threaded connection is required, such as plumbing, small-bore piping, and low-pressure applications. |
| Standards and Codes | ASME/ANSI B16.5 Threaded Flanges adhere to standards set by the American National Standards Institute (ANSI) and nominal pipe size (NPS) standards, such as ANSI B16.5. |
| Seal Types | Threaded Flanges commonly use gaskets or O-rings for sealing, with the choice of seal type depending on the application and pressure rating. |
| Accessories and Attachments | Some applications may require additional components such as flange gaskets, bolts, nuts, and flange cover gaskets. |
| Inspection and Testing | ASME/ANSI B16.5 Threaded Flanges typically undergo a series of inspections and tests to ensure they meet quality and performance requirements, in compliance with standards. |
| Marking and Certification | Threaded Flanges should be marked with the manufacturer’s identification, size, class, material, and other relevant information. Some flanges may require specific certifications such as PED or ASME. |
| Installation and Maintenance | Proper installation and regular maintenance of Threaded Flanges, including thread integrity, bolt torque, flange face cleaning, and seal replacement, are crucial for system integrity and performance. |
| Application Standards | In specific industries and applications, there may be industry-specific Threaded Flange application standards that need to be adhered to for safety and performance. |
This table provides a comprehensive overview of ASME/ANSI B16.5 Threaded Flanges, covering key specifications, characteristics, and additional considerations. Specific details and requirements may vary based on the chosen flange size, pressure rating, and material.
ASME/ANSI B16.5 Threaded Flanges are a type of flange used to connect two pipes together using a threaded joint. They are commonly used in low-pressure and low-temperature applications, where welding may not be feasible or desirable.
The Threaded Flange has a female thread on the inside surface, which allows the end of the pipe to be screwed into the flange, creating a threaded joint. The Threaded Flange is then tightened using a wrench, which creates a strong, secure connection between the pipe and the flange.
ASME/ANSI B16.5 Threaded Flanges are typically used in applications such as plumbing, heating, and air conditioning systems, as well as in water and sewage treatment plants. They are also used in applications where frequent disassembly is required for maintenance or cleaning.
ASME/ANSI B16.5 Threaded Flanges are available in a range of sizes from 1/2 inch to 24 inches, and are manufactured to meet the requirements of the ASME B16.5 standard. The standard specifies the dimensions, tolerances, marking, and testing requirements for the flange to ensure the quality and performance of the product.
The design of the Threaded Flange ensures that the pipe and flange are aligned properly during installation, which minimizes the risk of leaks and other problems. This makes them a popular choice in applications where a reliable, leak-free connection is critical.
ASME/ANSI B16.5 Threaded Flanges are available in a range of materials, including carbon steel, stainless steel, and alloy steel, among others. The material selection depends on the specific requirements of the application, such as the temperature, pressure, and corrosion resistance of the piping system.
Proper selection, installation, and maintenance of ASME/ANSI B16.5 Threaded Flanges are crucial to ensure a safe and reliable operation of the piping system. Care must be taken to ensure that the thread on the flange matches the thread on the pipe, and that the flange is tightened to the correct torque specifications. Failure to do so can result in leaks or other problems that can compromise the integrity of the piping system.
In summary, ASME/ANSI B16.5 Threaded Flanges are a type of flange commonly used in low-pressure and low-temperature applications, where welding may not be feasible or desirable. They provide a strong and secure connection between the pipe and the flange, and are designed to be used in systems that require frequent disassembly for maintenance or cleaning. Proper selection, installation, and maintenance of ASME/ANSI B16.5 Threaded Flanges are crucial to ensure a safe and reliable operation of the piping system.