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Orifice Flanges

ASME B 16.5, ASME B 16.47, MSS SP44, ASTM A182, 240, 105, 350, SB564, 160, 472 Duplex Orifice Flanges Suppliers.

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
48.3 73 155 36.6 84 70 6.4
2 60.3 92.1 165 36.6 84 84 6.4
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
114.3 4 13/16 3/4 135
2 127 8 11/16 5/8 125
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 1 1/8 180
14 514.4 20 1 1/8 185
16 571.5 20 1 3/8 195
18 628.6 24 1 3/8 205
20 685.8 24 1 3/8 215
24 812.8 24 1 3/8 240




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