304L Material Slip-On Welding Steel Pipe Flanges with 300LBS Pressure and JIS B 2220-1984 Standard
Product Name: Lap Joint Flange
Pressure Rating: 300 lbs
Material: 304L Forged Steel Flanges
A flange is defined as a plate-type device, typically round, that attaches to the end of a pipe, fitting, valve, or other object to facilitate assembly and disassembly of piping systems. Flanges are manufactured in various materials to match the pipes and fittings they connect. While some are made of cast iron, the majority are forged carbon steel.
Forged steel flanges are available in seven primary pressure ratings:
- Class 150
- Class 300
- Class 400
- Class 600
- Class 900
- Class 1500
- Class 2500
- Weld Neck Flanges
- Slip-On Flanges
- Lap Joint Flanges
- Threaded Flanges
- Socket Weld Flanges
- Blind Flanges
Size: ½" TO 54"
Pressure Rating: 150#, 300#, 600#, 900#, 1500#, 2500#
Standards: ASME B 16.5, ASME B 16.47, API 6A
Type: SORF, WNRF, SWRF, BLRF, Threaded, etc.
Specials: Spacers, Spectacle Blinds, Drip Rings, RTJ, Tongue, Groove, Orifice, etc.
- Carbon Steel: A-105, A-350 LF2 [NACE + HIC], etc.
- Alloy Steel: F-5, F-9, F-11, F-22, F-91, etc.
- Stainless Steel: SS 304, SS 304L, SS316, SS 316L, SS 316Ti, SS 321, SS 347, SS 304H, 317L, 347H, etc.
- Duplex SS: F-51, F-55
- High Strength Steel: A694 Gr 52, 60, 65, 70, AISI 4130, 4140
- Nickel Alloys: Monel 400, Inconel 625, Inconel 825, Alloy 20, etc.
| Nominal Bore | Pipe OD A | Flange dia. B | Raised Face dia. D | Flange Thickness T | Welding Neck | Slip-on Screwed Socket-weld | Bolt PCD | No. of Bolts | Bolt Hole dia. |
|---|---|---|---|---|---|---|---|---|---|
| 15 | 21.4 | 88.9 | 34.9 | 11.1 | 47.6 | 15.9 | 60.3 | 4 | 15.9 |
| 20 | 27.0 | 98.4 | 42.9 | 12.7 | 52.4 | 15.9 | 69.8 | 4 | 15.9 |
| 25 | 34.1 | 107.9 | 50.8 | 14.3 | 55.6 | 17.5 | 79.4 | 4 | 15.9 |
| 32 | 42.9 | 117.5 | 63.5 | 15.9 | 57.1 | 20.6 | 88.9 | 4 | 15.9 |
| 40 | 48.4 | 127.0 | 73.0 | 17.5 | 61.9 | 22.2 | 98.4 | 4 | 15.9 |
| 50 | 60.3 | 152.4 | 92.1 | 19.0 | 63.5 | 25.4 | 120.6 | 4 | 19.0 |
| 65 | 73.0 | 177.8 | 104.8 | 22.2 | 69.8 | 28.6 | 139.7 | 4 | 19.0 |
| 80 | 88.9 | 190.5 | 127.0 | 23.8 | 69.8 | 30.2 | 152.4 | 4 | 19.0 |
| 90 | 101.6 | 215.9 | 139.7 | 23.8 | 71.4 | 31.7 | 177.8 | 8 | 19.0 |
| 100 | 114.3 | 228.6 | 157.2 | 23.8 | 76.2 | 33.3 | 190.5 | 8 | 19.0 |
| 125 | 141.3 | 254.0 | 185.7 | 23.8 | 88.9 | 36.5 | 215.9 | 8 | 22.2 |
| 150 | 165.1 | 279.4 | 215.9 | 25.4 | 88.9 | 39.7 | 241.3 | 8 | 22.2 |
| 150 | 168.3 | 279.4 | 215.9 | 25.4 | 88.9 | 39.7 | 241.3 | 8 | 22.2 |
| 200 | 219.1 | 342.9 | 269.9 | 28.6 | 101.6 | 44.4 | 298.4 | 8 | 22.2 |
| 250 | 273.1 | 406.4 | 323.8 | 30.2 | 101.6 | 49.2 | 361.9 | 12 | 25.4 |
| 300 | 323.9 | 482.6 | 381.0 | 31.7 | 114.3 | 55.6 | 431.8 | 12 | 25.4 |
| 350 | 355.6 | 533.4 | 412.7 | 34.9 | 127.0 | 57.1 | 476.2 | 12 | 28.6 |
| 400 | 406.4 | 596.9 | 469.9 | 36.5 | 127.0 | 63.5 | 539.7 | 16 | 28.6 |
| 450 | 457.2 | 635.0 | 533.4 | 39.7 | 139.7 | 68.3 | 577.8 | 16 | 31.7 |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.