Manufacturer/Exporter Of High Quality Orifice Flanges
Stainless Steel Orifice Flanges, Carbon Steel Orifice Flanges, Alloy Steel Orifice Flanges Manufacturer & Exporter.
Orifice Flanges are used with orifice meters for the purpose of measuring the flow rate of either liquids or gases in the respective pipeline. Pairs of pressure "Tappings", mostly on 2 sides, directly opposite each other, are machined into the orifice flange. This makes separate orifice carriers or tappings in the pipe wall unnecessary.
Orifice Flanges generally come with either Raised Faces or RTJ (Ring Type Joint) facings. They are, for all intensive purposes, the same as weld neck and slip on flanges with extra machining. PIPEFIT SOLUTION PVT LTD is one of the leading Manufacturers and Supplier of Orifice Flanges using high quality raw materials. Orifice Flanges are used instead of the standard pipe flanges when orifice plate or flow nozzle is used. The orifice plate is a separate commodity and is not sold as a part of the flange assembly.
The range of orifice flanges covers all standard sizes and ranges, and all common flange materials. Flanges are available in Welding Neck, Slip On, and Threaded form, and are typically supplied with two 1/2" NPT tappings in each flange.
ASME B16.36 covers Dimensions and dimensional tolerances from orifice flanges (similar to those covered in ASME B16.5) that have orifice pressure differential connections. Coverage is limited to the following flanges:
The various types of threaded flanges are as follows:
• WELDING NECK CLASSES 300, 400, 600, 900, 1500, 2500
• SLIP ON CLASS 300
• THREADED CLASS 300
Orifice Flange
Orifice Flange Dimensions
Specifications
Size:1/2" (15 NB) to 48" (1200NB)
Class: 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Standards: ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
Material:Aluminum, Brass, Bronze, Cast iron, Stainless Steel, Carbon Steel, Alloy, Nickel, Copper etc.
Type: Threaded, Slip-On, Welding Neck
DIMENSIONS WN ORIFICE FLANGES ASME B16.36
• Dimensions are in millimeters (excluding bolts and bolt holes).
• Different NPT sizes than 1/2 may be supplied
• Bolt lengths for RF flanges include allowance for orifice and gasket thickness of 6 mm (0.25 in.) for NPS 1 to NPS 12. Bolt lengths for ring-type joint flanges include allowance of 15 mm (0.62 in.) for NPS 1 to NPS 3.
• Bore (B) has to be specified by the buyer
• Stud Bolt lenghts excl. the height of the chamfers
CLASS 300 WELD NECK ORIFICE FLANGE RF
| NPS | A | R | O | T | H | X | Tg |
| 1 | 33.4 | 50.8 | 125 | 36.6 | 81 | 54 | 6.4 |
| 1½ | 48.3 | 73 | 155 | 36.6 | 84 | 70 | 6.4 |
| 2 | 60.3 | 92.1 | 165 | 36.6 | 84 | 84 | 6.4 |
| 2½ | 73 | 104.8 | 190 | 36.6 | 87 | 100 | 6.4 |
| 3 | 88.9 | 127 | 210 | 36.6 | 87 | 117 | 9.5 |
| 4 | 114.3 | 157.2 | 255 | 36.6 | 90 | 146 | 12.7 |
| 6 | 168.3 | 215.9 | 320 | 36.6 | 98 | 206 | 12.7 |
| 8 | 219.1 | 269.9 | 380 | 39.7 | 110 | 260 | 12.7 |
| 10 | 273 | 323.8 | 445 | 46.1 | 116 | 321 | 12.7 |
| 1212 | 323.8 | 381 | 520 | 49.3 | 129 | 375 | 12.7 |
| 14 | 355.6 | 412.8 | 585 | 52.4 | 141 | 425 | 12.7 |
| 16 | 406.4 | 469.9 | 650 | 55.6 | 144 | 483 | 12.7 |
| 18 | 457 | 533.4 | 710 | 58.8 | 157 | 533 | 12.7 |
| 20 | 508 | 584.2 | 775 | 62 | 160 | 587 | 12.7 |
| 24 | 610 | 692.2 | 915 | 68.3 | 167 | 702 | 12.7 |
| NPS | BOLT CIRCLE DIAM. | BOLTS # | HOLES DIAM. | BOLTS DIAMETER | BOLTS LENGHT |
| 1 | 88.9 | 4 | 11/16 | 5/8 | 125 |
| 1½ | 114.3 | 4 | 13/16 | 3/4 | 135 |
| 2 | 127 | 8 | 11/16 | 5/8 | 125 |
| 2½ | 149.2 | 8 | 13/16 | 3/4 | 135 |
| 3 | 168.3 | 8 | 13/16 | 3/4 | 135 |
| 4 | 8 | 200 | 13/16 | 3/4 | 135 |
| 6 | 269.9 | 12 | 7/8 | 3/4 | 135 |
| 8 | 330.2 | 12 | 1 | 7/8 | 145 |
| 10 | 387.4 | 16 | 1 1/8 | 1 | 165 |
| 12 | 450.8 | 16 | 1¼ | 1 1/8 | 180 |
| 14 | 514.4 | 20 | 1¼ | 1 1/8 | 185 |
| 16 | 571.5 | 20 | 1 3/8 | 1¼ | 195 |
| 18 | 628.6 | 24 | 1 3/8 | 1¼ | 205 |
| 20 | 685.8 | 24 | 1 3/8 | 1¼ | 215 |
| 24 | 812.8 | 24 | 1 3/8 | 1½ | 240 |
