Standard
Orifice Flange Standard Is Asme B16.36 Cover Temperature Ratings, Dimensions, Tolerances, Testing, Materials, And Making.
Orifice Flange
Carbon Steel Orifice Flange and ANSI B16.36 Stainless Steel Orifice Plate Flange manufacturer in UAE
What Is Jack Screw In ASME B16.36 Orifice Flange?
ASME B16.36 Orifice Flange is frequently written as an ORFF. The threaded orifice flange is used to measure the rate of volumetric flow of fluids and gases in a pipe. Orifice flange union refers to the joining of two orifice flanges. Each 150 orifice flange includes two pipeline taps for determining the pressure drop caused by the passage through an orifice plate. Orifice plates are usually not accessible with the weld neck orifice flange. The length of the plates is determined by the procedure or application for which it must be employed.
Orifice Flange Vs Normal Flange
Except for the availability of radial, tapped gaps in the flange ring for metre ties to function as jack screws.It enables splitting the flanges for checking or substitute of the orifice plate. Orifice Flange is essentially the same as normal weld neck and screwed flanges.
Stainless Steel Orifice Flange Assembly
The ABB FPD160 is a series of flow measuring orifice plates that are installed in weld-in orifice unions and flange tappings. Stainless Steel Orifice Flange comes in a variety of shapes to accommodate a broad range of uses, from pure fluids.
Check Advantages & Disadvantages Of SS 304 Weld Neck Orifice Flange, ASME B16.36 Dimensions, Weight Chart, Tapping Standard and Price Per KG
Why Are Regular Carbon Steel Orifice Flange Installed In A Pipe?
They are inserted in the pipe's straight rung. This reduces plate turbulence. The flow rate of fluid in the pipe can be measured using an Carbon Steel Orifice Flange standard. When opposed to other ways, they are less expensive.
Why Are Orifice Plates Beveled
The orifice plate is the most prevalent type of pressure-based flow component. This is basically a metal plate with a gap in the centre through which fluid can flow. Orifice plates are often placed between two pipe junction flanges, enabling for simple installation.
The square-edged, circular Orifice Plate is the most basic type of orifice plate. A perfect, straight hole is machined in the midst of a thin metal plate to create this sort of orifice plate.
manufacturer & exporter of Alloy Steel Concentric/ Eccentric Orifice Plate Flanges and ASTM A182 F316 Blind Orifice Plate with Jack Screw In Middle East
Table of content
Specialized in manufacturing
Orifice Flange
ASME B16.36 Orifice Flange Is Used To Measure The Flow Of Product Through The Piping System.
Size
1/2 Inches To 24 Inches
Class
300 To 2500
ASTM
A182, A105, A694
ASME
B16.36
Introduction to ANSI B16.36 Orifice Flange
Uses
Orifice Flange Uses In Along Side Orifice Meters For Measuring The Volumetric Flow Rate Of Liquids & Gases Through A Pipe.
Grade & Facings
Available In All Astm Material Grades And Fall Under Asme B16.36 And Raised Face Or Ring Type Joint Facing.
Advantages Of Orifice Plate Flange
- Easy to install and remove.
- Simple in production, the requirements for construction and calibration are readily available.
- They are efficient and reliable for many years.
- Easy to measure flow rate, as it produces the considerable pressure drop across the orifice.
- Their characteristics are widely recognized and predictable.
Disadvantages Of Weld Neck Orifice Flange
- Relatively high permanent pressure drop.
- Their function may change due to erosion and corrosion.
- The fluid must be in single phase and homogeneous.
- Square root characteristics.
What Is The Purpose Of Orifice Flanges
- They are used with orifice (meters) to measure the flow rate of both liquid and gases, flowing through the pipes.
- An orifice plate, a device measuring the flow of the internal fluid and gas, is secured between two orifice flanges, connected to the pipes
- orifice plate contains a small hole
| Specifications | Orifice Flange |
|---|---|
| Brand Name | Schulzmann |
| Size | 1/2" to 24" |
| Certificate | ISO |
| Testing | Hydrostatic testing machine Magnetic particle detector Direct-reading Spectrograph UI trasonic flaw detector |
| Supply Ability | 400 Ton Per Month |
| Methods Of Forging | Casting Forging Rolling Cutting |
| Use In | Marine & dredging Sanitation Process Instrumentation Oil and Gas Petrochemical/ Refinery/Chemical Power etc. |
| Class | 300 To 2500 |
| Transportation In | Air & Ocean and Land |
| Orifice Flange Manufacturer In UAE | 500 ton per month (Manufacturing Productivity) |
| Available Packing | Packing In Plywood Box And Plywood Pallet |
| Equipment | Pushing Machine Press machine electric bevelling machine |
| Payment Type | L/C,T/T,D/P,Paypal |
| Supporting Material For Flanges | Gasket/ Ring Joint/ Flanges Bolts |
| Description | Price In US ($) |
|---|---|
| FLANGES RF, ORIFICE, WN, SCH 80, 2 INCH | US $307.59 Per KG |
| FLANGES, RF, ORIFICE, WN, SCH 40, 1 3/4 INCH | US $227.85 Per KG |
| FLANGES, RF, ORIFICE, WN, SCH 40, 1 1/2 inch | US $184.05 Per KG |
| LOW TEMP FLANGES, 2 INCH, RF, ORIFICE, WN, 300 LB, SCH XS, JACK SCREWS & SW TAPS | US $24,583 Per KG |
| FLANGES, RF, ORIFICE, 1 1/2 INCH, WN, 300LB, STD LF2 | US $704.95 Per KG |
| ORIFICE PLATE, DN 50, WITH FLANGES | US $279.57 Per KG |
| ORIFICE PLATE, DN 40, WITH FLANGES | US $256.64 Per KG |
| A105 RF, CL300, CARBON STEEL FLANGES - ORIFICE, SCH 20, DN250 | US $1912.14 Per KG |
| A105 RF, CL300, CARBON STEEL FLANGES - ORIFICE, SCH 20, DN300 | US $629.52 Per KG |
| CARBON STEEL FLANGES - ORIFICE, A105 RF, CL600, SCH 80, DN80 | US $196.71 Per KG |
| LF2, RF, CL600, CARBON STEEL FLANGES - ORIFICE, SCH 80, DN80 | US $39.35 Per KG |
| A105 RF, CL300, CARBON STEEL FLANGES - ORIFICE, SCH 20, DN350 | US $2163.95 Per KG |
| A105 RF, CL300, CARBON STEEL FLANGES - ORIFICE, SCH 40, DN500 | US $1573.78 Per KG |
| A105 RF, CL600, CARBON STEEL FLANGES - ORIFICE, SCH 80, DN400 | US $1652.48 Per KG |
Blind Orifice Plate
Orifice Tapping
Flange Tapping Orifice Plate
Concentric Orifice Plate
Eccentric Orifice Plate
Ring Joint Orifice Plate
Socket Weld Orifice Flange
Restriction Orifice Flanges
Rtj Orifice Plate
Weld Neck Orifice Flanges
ASME B16.36 Orifice Flanges
Stainless Steel Orifice Flanges
Carbon Steel Orifice Flanges
Orifice Plate Flanges
SS 304 Orifice Flanges
Restriction Orifice Plate Types
The typical designs of orifice plates are
- Eccentric orifice plate
- Segmental orifice plate
- Continuous metals structure adds to piping system strength
- Concentric orifice plate
Grade Of Stainless Steel Orifice Flange
| Normal Pipe Size | 300# | 400# | 600# | 900# | 1500# | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jack Screw Sizes | Lengths | Hole Size | Jack Screw Size | Length | Holes Size | Jack Screw Sizes | Lengths | Holes Size | Jack Screw Sizes | Lengths | Hole Size | Jack Screw Sizes | Lengths | Hole Size | |
| 1 | 5/8 | 2-3/4 | 11/16 | 5/8 | 2-3/4 | 11/16 | 5/8 | 2-3/4 | 11/16 | 5/8 | 3-1/4 | 3/4 | 5/8 | 3-1/4 | 3/4 |
| 1-1/4 | 5/8 | 2-3/4 | 11/16 | 5/8 | 2-3/4 | 11/16 | 5/8 | 2-3/4 | 11/16 | 5/8 | 3-1/4 | 3/4 | 5/8 | 3-1/4 | 3/4 |
| 1-1/2 | 5/8 | 2-3/4 | 11/16 | 5/8 | 2-3/4 | 11/16 | 5/8 | 2-3/4 | 11/16 | 5/8 | 3-1/4 | 3/4 | 5/8 | 3-1/4 | 3/4 |
| 2 | 5/8 | 2-3/4 | 11/16 | 5/8 | 2-3/4 | 11/16 | 5/8 | 2-3/4 | 11/16 | 5/8 | 3-1/4 | 3/4 | 5/8 | 3-1/4 | 3/4 |
| 2-1/2 | 5/8 | 2-3/4 | 13/16 | 5/8 | 2-3/4 | 13/16 | 3/4 | 2-3/4 | 13/16 | 5/8 | 3-1/2 | 3/4 | 5/8 | 3-1/2 | 3/4 |
| 3 | 3/4 | 2-3/4 | 13/16 | 3/4 | 2-3/4 | 13/16 | 3/4 | 2-3/4 | 13/16 | 3/4 | 3-1/4 | 7/8 | 3/4 | 3-3/4 | 7/8 |
| 4 | 3/4 | 2-3/4 | 13/16 | 3/4 | 3-1/4 | 7/8 | 3/4 | 3-1/4 | 7/8 | 3/4 | 3-1/2 | 7/8 | 3/4 | 4 | 7/8 |
| 5 | 3/4 | 2-3/4 | 7/8 | 3/4 | 3-1/4 | 7/8 | 3/4 | 3-1/2 | 7/8 | 3/4 | 3-3/4 | 7/8 | 3/4 | 5 | 7/8 |
| 6 | 3/4 | 2-3/4 | 7/8 | 7/8 | 3-1/2 | 1 | 7/8 | 4 | 1 | 1 | 4 | 1-1/8 | 1 | 5 | 1-1/8 |
| 8 | 3/4 | 3 | 7/8 | 7/8 | 4 | 1 | 7/8 | 4 | 1 | 1 | 4-1/2 | 1-1/8 | 1 | 5-1/2 | 1-1/8 |
| 10 | 1 | 3-1/2 | 1-1/8 | 7/8 | 4 | 1 | 7/8 | 4-1/2 | 1 | 1 | 4-1/2 | 1-1/8 | 1 | 6 | 1-1/8 |
| 12 | 1 | 3-1/2 | 1-1/8 | 7/8 | 4 | 1 | 7/8 | 4-1/2 | 1 | 1 | 5 | 1-1/8 | 1 | 7 | 1-1/8 |
Orifice Flange Tapping Standard
Popular tap locations for orifice plates
- Flange Taps
- Vena contracta taps
- Radius taps
- Corner taps
Orifice Tap Location
Stainless Steel Orifice Flange Weight Chart
| Orifice Size in Inch | Weld Neck OD | Welding Neck Length | Diameter Of R/F | R/F Height | Weight in KG |
|---|---|---|---|---|---|
| 1 | 33.4 | 81 | 50.8 | 2 | 4.5 |
| 1 1/2 | 48.3 | 84 | 73 | 2 | 6.5 |
| 2 | 60.3 | 84 | 92.1 | 2 | 7 |
| 2 1/2 | 73 | 87 | 104.8 | 2 | 7.5 |
| 3 | 88.9 | 87 | 127 | 2 | 9.4 |
| 4 | 114.3 | 90 | 157.2 | 2 | 13.2 |
| 6 | 168.3 | 98 | 215.9 | 2 | 14.6 |
| 8 | 219.1 | 110 | 269.9 | 2 | 30 |
| 10 | 273 | 116 | 323.8 | 2 | 41 |
| 12 | 323.8 | 129 | 381 | 2 | 62 |
| 14 | 355.6 | 141 | 412.8 | 2 | 84 |
| 16 | 406.4 | 144 | 469.9 | 2 | 111 |
| 18 | 457 | 157 | 533.4 | 2 | 138 |
| 20 | 508 | 160 | 584.2 | 2 | 171 |
| 24 | 610 | 167 | 692.2 | 2 | 247 |
Carbon Steel Orifice Plate Pressure Rating
| Temperature (Dedgree C) | Class Of ASME B16.36 Flanges | ||||||
|---|---|---|---|---|---|---|---|
| (150#) | (300#) | (400#) | (600#) | (900#) | (1500#) | (2500#) | |
| -29 - 38 | 19.8 | 51.7 | 68.9 | 103.4 | 155 | 259 | 431 |
| 50 | 19.5 | 51.7 | 68.9 | 103.4 | 155 | 259 | 431 |
| 100 | 17.7 | 51.5 | 68.7 | 103.0 | 155 | 258 | 429 |
| 150 | 15.8 | 50.2 | 66.8 | 100.3 | 151 | 251 | 418 |
| 200 | 13.8 | 48.6 | 64.8 | 97.2 | 146 | 243 | 405 |
| 250 | 12.1 | 46.3 | 61.7 | 92.7 | 139 | 232 | 386 |
| 300 | 10.2 | 42.9 | 57.0 | 85.7 | 129 | 214 | 357 |
| 325 | 9.3 | 41.4 | 55.0 | 82.6 | 124 | 207 | 344 |
| 350 | 8.4 | 40.0 | 53.4 | 80.0 | 120 | 200 | 334 |
| 375 | 7.4 | 37.8 | 50.4 | 75.7 | 114 | 189 | 315 |
| 400 | 6.5 | 34.7 | 46.3 | 69.4 | 104 | 174 | 290 |
| 425 | 5.5 | 28.8 | 38.4 | 57.5 | 86.3 | 144 | 240 |
| 450 | 4.6 | 23.0 | 30.7 | 46.0 | 69.0 | 115 | 192 |
| 475 | 3.7 | 17.1 | 22.8 | 34.2 | 51.3 | 85.4 | 142 |
| 500 | 2.8 | 11.6 | 15.4 | 23.2 | 34.7 | 57.9 | 96.5 |
| 538 | 1.4 | 5.9 | 7.9 | 11.8 | 17.7 | 29.5 | 49.2 |
Refer different types of ASTM A105 Carbon Steel Orifice Flange, manufacturer of Duplex Steel Restriction Orifice Flanges in Dubai In RTJ/ RF Fcae
ASME B16.36 Orifice Flange Dimensions
Class 300 Orifice Flange Dimensions
| Size In Inches | Size In MM | OD | Thickness | OD Of Hub | OD Of Weld Neck | Welding Neck Length | Diameter Of R/F | R/F Height | PCD | Diameter Of Hole | No. Bolts | Size Of Bolt In UNC | Length Of R/F Stud | Hole Sizes | Size Of Stud In ISO | Weight As Per KG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (C) | (D) | (E) | (F) | (G) | (H) | (I) | - | - | - | - | - | - | - | - |
| 1 | 25 | 125 | 36.6 | 54 | 33.4 | 81 | 50.8 | 2 | 88.9 | 6.4 | 4 | 5/8 | 125 | 3/4 | M16 | 4.5 |
| 1 1/2 | 40 | 155 | 36.6 | 70 | 48.3 | 84 | 73 | 2 | 114.3 | 6.4 | 4 | 3/4 | 135 | 7/8 | M20 | 6.5 |
| 2 | 50 | 165 | 36.6 | 84 | 60.3 | 84 | 92.1 | 2 | 127 | 6.4 | 8 | 5/8 | 125 | 3/4 | M16 | 7 |
| 2 1/2 | 65 | 190 | 36.6 | 100 | 73 | 87 | 104.8 | 2 | 149.2 | 6.4 | 8 | 3/4 | 135 | 7/8 | M20 | 7.5 |
| 3 | 80 | 210 | 36.6 | 117 | 88.9 | 87 | 127 | 2 | 168.3 | 9.5 | 8 | 3/4 | 135 | 7/8 | M20 | 9.4 |
| 4 | 100 | 255 | 36.6 | 146 | 114.3 | 90 | 157.2 | 2 | 200 | 12.7 | 8 | 3/4 | 135 | 7/8 | M20 | 13.2 |
| 6 | 150 | 320 | 36.6 | 206 | 168.3 | 98 | 215.9 | 2 | 269.9 | 12.7 | 12 | 3/4 | 135 | 7/8 | M20 | 14.6 |
| 8 | 200 | 380 | 39.7 | 260 | 219.1 | 110 | 269.9 | 2 | 330.2 | 12.7 | 12 | 7/8 | 145 | 1 | M24 | 30 |
| 10 | 250 | 445 | 46.1 | 321 | 273 | 116 | 323.8 | 2 | 387.3 | 12.7 | 16 | 1 | 165 | 1 1/8 | M27 | 41 |
| 12 | 300 | 520 | 49.3 | 375 | 323.8 | 129 | 381 | 2 | 450.8 | 12.7 | 16 | 1 1/8 | 180 | 1 1/4 | M30 | 62 |
| 14 | 350 | 585 | 52.4 | 425 | 355.6 | 141 | 412.8 | 2 | 514.4 | 12.7 | 20 | 1 1/8 | 185 | 1 1/4 | M30 | 84 |
| 16 | 400 | 650 | 55.6 | 483 | 406.4 | 144 | 469.9 | 2 | 571.5 | 12.7 | 20 | 1 1/4 | 195 | 1 3/8 | M33 | 111 |
| 18 | 450 | 710 | 58.8 | 533 | 457 | 157 | 533.4 | 2 | 628.6 | 12.7 | 24 | 1 1/4 | 205 | 1 3/8 | M33 | 138 |
| 20 | 500 | 775 | 62 | 587 | 508 | 160 | 584.2 | 2 | 685.8 | 12.7 | 24 | 1 1/4 | 215 | 1 3/8 | M33 | 171 |
| 24 | 600 | 915 | 68.3 | 702 | 610 | 167 | 692.2 | 2 | 812.8 | 12.7 | 24 | 1 1/2 | 240 | 1 5/8 | M39 | 247 |
Class 600 Orifice Flange Dimensions
| Size In Inches | Size In MM | OD | Thickness | OD Of Hub | OD Of Weld Neck | Welding Neck Length | Diameter Of R/F | R/F Height | PCD | Diameter Of Hole | No. Bolts | Size Of Bolt In UNC | Length Of R/F Stud | Hole Sizes | Size Of Stud In ISO | Weight As Per KG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (C) | (D) | (E) | (F) | (G) | (H) | (I) | - | - | - | - | - | - | - | - |
| 1 | 25 | 125 | 36.6 | 54 | 33.5 | 81 | 50.8 | 7 | 88.9 | 6.4 | 4 | 5/8 | 125 | 3/4 | M16 | 5.5 |
| 1 1/2 | 40 | 155 | 36.6 | 70 | 48.3 | 84 | 73 | 7 | 114.3 | 6.4 | 4 | 3/4 | 135 | 7/8 | M20 | 7.8 |
| 2 | 50 | 165 | 36.6 | 84 | 60.3 | 84 | 92.1 | 7 | 127 | 6.4 | 8 | 5/8 | 125 | 3/4 | M16 | 8.3 |
| 2 1/2 | 65 | 190 | 36.6 | 100 | 73 | 87 | 104.8 | 7 | 149.2 | 6.4 | 8 | 3/4 | 135 | 7/8 | M20 | 10.8 |
| 3 | 80 | 210 | 36.6 | 117 | 88.9 | 87 | 127 | 7 | 168.3 | 9.5 | 8 | 3/4 | 135 | 7/8 | M20 | 12.6 |
| 4 | 100 | 275 | 38.1 | 152 | 114.3 | 102 | 157.2 | 7 | 215.9 | 12.7 | 8 | 7/8 | 150 | 1 | M24 | 19 |
| 6 | 150 | 355 | 47.7 | 222 | 168.3 | 117 | 215.9 | 7 | 292.1 | 12.7 | 12 | 1 | 180 | 1 1/8 | M27 | 37 |
| 8 | 200 | 420 | 55.6 | 273 | 219.1 | 133 | 269.9 | 7 | 349.2 | 12.7 | 12 | 1 1/8 | 195 | 1 1/4 | M30 | 53 |
| 10 | 250 | 510 | 63.5 | 343 | 273 | 152 | 323.8 | 7 | 431.8 | 12.7 | 16 | 1 1/4 | 220 | 1 3/8 | M33 | 86 |
| 12 | 300 | 560 | 66.7 | 400 | 323.8 | 156 | 381 | 7 | 489 | 12.7 | 20 | 1 1/4 | 230 | 1 3/8 | M33 | 102 |
| 14 | 350 | 605 | 69.9 | 432 | 355.6 | 165 | 412.8 | 7 | 527 | 12.7 | 20 | 1 3/8 | 240 | 1 1/2 | M36 | 150 |
| 16 | 400 | 685 | 76.2 | 495 | 406.4 | 178 | 469.9 | 7 | 603.2 | 12.7 | 20 | 1 1/2 | 260 | 1 5/8 | M39 | 190 |
| 18 | 450 | 745 | 82.6 | 546 | 457.2 | 184 | 533.4 | 7 | 654 | 12.7 | 20 | 1 5/8 | 280 | 1 3/4 | M42 | 240 |
| 20 | 500 | 815 | 88.9 | 610 | 508 | 190 | 584.2 | 7 | 723.9 | 12.7 | 24 | 1 5/8 | 300 | 1 3/4 | M42 | 295 |
| 24 | 600 | 940 | 101.6 | 718 | 609.6 | 203 | 692.2 | 7 | 838.2 | 12.7 | 24 | 1 7/8 | 335 | 2 | M48 | 365 |
Different Grades Of Carbon Steel Orifice Plate Flanges
Class 900 Orifice Flange Dimensions
| Size In Inches | Size In MM | OD | Thickness | OD Of Hub | OD Of Weld Neck | Welding Neck Length | Diameter Of R/F | R/F Height | PCD | Diameter Of Hole | No. Bolts | Size Of Bolt In UNC | Length Of R/F Stud | Hole Sizes | Size Of Stud In ISO | Weight As Per KG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (C) | (D) | (E) | (F) | (G) | (H) | (I) | - | - | - | - | - | - | - | - |
| 1 | 25 | 150 | 38.1 | 52 | 33.5 | 83 | 50.8 | 7 | 101.6 | 6.4 | 4 | 7/8 | 150 | 1 | M24 | 5.4 |
| 1 1/2 | 40 | 180 | 38.1 | 70 | 48.3 | 89 | 73 | 7 | 123.8 | 6.4 | 4 | 1 | 160 | 1 1/8 | M27 | 7.8 |
| 2 | 50 | 215 | 38.1 | 105 | 60.3 | 102 | 92.1 | 7 | 165.1 | 6.4 | 8 | 7/8 | 150 | 1 | M30 | 11.5 |
| 2 1/2 | 65 | 245 | 41.3 | 124 | 73 | 105 | 104.8 | 7 | 190.5 | 6.4 | 8 | 1 | 165 | 1 1/8 | M27 | 15.8 |
| 3 | 80 | 240 | 38.1 | 127 | 88.9 | 102 | 127 | 7 | 190.5 | 9.5 | 8 | 7/8 | 150 | 1 | M24 | 22 |
| 4 | 100 | 290 | 44.5 | 159 | 114.3 | 114 | 157.2 | 7 | 235 | 12.7 | 8 | 1 1/8 | 180 | 1 1/4 | M30 | 22 |
| 6 | 150 | 380 | 55.6 | 235 | 168.3 | 140 | 215.9 | 7 | 317.5 | 12.7 | 12 | 1 1/8 | 195 | 1 1/4 | M30 | 70 |
| 8 | 200 | 470 | 63.5 | 298 | 219.1 | 162 | 269.9 | 7 | 393.7 | 12.7 | 12 | 1 3/8 | 230 | 1 1/2 | M36 | 119 |
| 10 | 250 | 545 | 69.9 | 368 | 273 | 184 | 323.8 | 7 | 469.9 | 12.7 | 16 | 1 3/8 | 240 | 1 1/2 | M36 | 204 |
| 12 | 300 | 610 | 79.4 | 419 | 323.8 | 200 | 381 | 7 | 533.4 | 12.7 | 20 | 1 3/8 | 260 | 1 1/2 | M36 | 303 |
| 14 | 350 | 640 | 85.8 | 451 | 355.6 | 213 | 412.8 | 7 | 558.8 | 12.7 | 20 | 1 1/2 | 280 | 1 5/8 | M39 | 400 |
| 16 | 400 | 705 | 88.9 | 508 | 406.4 | 216 | 469.9 | 7 | 616 | 12.7 | 20 | 1 5/8 | 290 | 1 3/4 | M42 | 510 |
| 18 | 450 | 785 | 101.9 | 565 | 457.2 | 229 | 533.4 | 7 | 685.8 | 12.7 | 20 | 1 7/8 | 330 | 2 | M48 | 738 |
| 20 | 500 | 855 | 108 | 622 | 508 | 248 | 584.2 | 7 | 749.3 | 12.7 | 20 | 2 | 355 | 2 1/8 | M52 | 932 |
| 24 | 600 | 1040 | 139.7 | 749 | 609.6 | 292 | 692.2 | 7 | 901.7 | 12.7 | 20 | 2 1/2 | 445 | 2 5/8 | M64 | 1511 |
Class 1500 Orifice Flange Dimensions
| Size In Inches | Size In MM | OD | Thickness | OD Of Hub | OD Of Weld Neck | Welding Neck Length | Diameter Of R/F | R/F Height | PCD | Diameter Of Hole | No. Bolts | Size Of Bolt In UNC | Length Of R/F Stud | Hole Sizes | Size Of Stud In ISO | Weight As Per KG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (C) | (D) | (E) | (F) | (G) | (H) | (I) | - | - | - | - | - | - | - | - |
| 1 | 25 | 150 | 38.1 | 52 | 33.5 | 83 | 50.8 | 7 | 101.6 | 6.4 | 4 | 7/8 | 150 | 1 | M24 | 5.4 |
| 1 1/2 | 40 | 180 | 38.1 | 70 | 48.3 | 89 | 73 | 7 | 123.8 | 6.4 | 4 | 1 | 160 | 1 1/8 | M27 | 7.8 |
| 2 | 50 | 215 | 38.1 | 105 | 60.3 | 102 | 92.1 | 7 | 165.1 | 6.4 | 8 | 7/8 | 150 | 1 | M24 | 11.5 |
| 2 1/2 | 65 | 245 | 41.3 | 124 | 73 | 105 | 104.8 | 7 | 190.5 | 6.4 | 8 | 1 | 165 | 1 1/8 | M27 | 15.8 |
| 3 | 80 | 265 | 47.7 | 133 | 88.9 | 117 | 127 | 7 | 203.2 | 9.5 | 8 | 1 1/8 | 185 | 1 1/4 | M30 | 22 |
| 4 | 100 | 310 | 54 | 162 | 114.3 | 124 | 157.2 | 7 | 241.3 | 12.7 | 8 | 1 1/4 | 205 | 1 3/8 | M33 | 22 |
| 6 | 150 | 395 | 82.6 | 229 | 168.3 | 171 | 215.9 | 7 | 317.5 | 12.7 | 12 | 1 3/8 | 265 | 1 1/2 | M36 | 70 |
| 8 | 200 | 485 | 92.1 | 292 | 219.1 | 213 | 269.9 | 7 | 393.7 | 12.7 | 12 | 1 5/8 | 300 | 1 3/4 | M42 | 119 |
| 10 | 250 | 585 | 108 | 368 | 273 | 254 | 323.8 | 7 | 482.6 | 12.7 | 12 | 1 7/8 | 345 | 1 | M48 | 204 |
| 12 | 300 | 675 | 123.9 | 451 | 323.8 | 283 | 381 | 7 | 571.5 | 12.7 | 16 | 2 | 380 | 2 1/8 | M52 | 303 |
| 14 | 350 | 750 | 133.4 | 495 | 355.6 | 298 | 412.8 | 7 | 635 | 12.7 | 16 | 2 1/4 | 415 | 2 3/8 | M56 | 400 |
| 16 | 400 | 825 | 146.1 | 552 | 406.4 | 311 | 469.9 | 7 | 704.8 | 12.7 | 16 | 2 1/2 | 450 | 2 5/8 | M64 | 510 |
| 18 | 450 | 915 | 162 | 597 | 457.2 | 327 | 533.4 | 7 | 774.7 | 12.7 | 16 | 2 3/4 | 500 | 2 7/8 | M72 | 738 |
| 20 | 500 | 985 | 177.8 | 641 | 508 | 356 | 584.2 | 7 | 831.8 | 12.7 | 16 | 3 | 545 | 3 1/8 | M76 | 932 |
| 24 | 600 | 1170 | 203.2 | 762 | 609.6 | 406 | 692.2 | 7 | 990.6 | 12.7 | 16 | 3 1/2 | 620 | 3 5/8 | M90 | 1511 |
Class 2500 Orifice Flange Dimensions
| Size In Inches | Size In MM | OD | Thickness | OD Of Hub | OD Of Weld Neck | Welding Neck Length | Diameter Of R/F | R/F Height | PCD | Diameter Of Hole | No. Bolts | Size Of Bolt In UNC | Length Of R/F Stud | Hole Sizes | Size Of Stud In ISO | Weight As Per KG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (A) | (B) | (C) | (D) | (E) | (F) | (G) | (H) | (I) | - | - | - | - | - | - | - | - |
| 1 | 25 | 160 | 38.1 | 57 | 33.5 | 92 | 50.8 | 7 | 108 | 6.4 | 4 | 7/8 | 150 | 1 | M24 | 6.5 |
| 1 1/2 | 40 | 205 | 44.5 | 79 | 48.3 | 111 | 73 | 7 | 146 | 6.4 | 4 | 1 1/8 | 180 | 1 1/4 | M30 | 13 |
| 2 | 50 | 235 | 50.8 | 95 | 60.3 | 127 | 92.1 | 7 | 171.4 | 6.4 | 8 | 1 | 185 | 1 1/8 | M27 | 19 |
| 2 1/2 | 65 | 265 | 57.2 | 114 | 73 | 143 | 104.8 | 7 | 196.8 | 6.4 | 8 | 1 1/8 | 205 | 1 1/4 | M30 | 24 |
| 3 | 80 | 305 | 66.7 | 133 | 88.9 | 168 | 127 | 7 | 228.6 | 9.5 | 8 | 1 1/4 | 230 | 1 3/8 | M33 | 43 |
| 4 | 100 | 355 | 76.2 | 165 | 114.3 | 190 | 157.2 | 7 | 273 | 12.7 | 8 | 1 1/2 | 260 | 1 5/8 | M39 | 66 |
| 6 | 150 | 485 | 108 | 235 | 168.3 | 273 | 215.9 | 7 | 368.3 | 12.7 | 8 | 2 | 350 | 2 1/8 | M52 | 172 |
| 8 | 200 | 550 | 127 | 305 | 219.1 | 318 | 269.9 | 7 | 438.2 | 12.7 | 12 | 2 | 385 | 2 1/8 | M52 | 261 |
| 10 | 250 | 675 | 165.1 | 375 | 273 | 419 | 323.8 | 7 | 539.8 | 12.7 | 12 | 2 1/2 | 490 | 2 5/8 | M64 | 485 |
| 12 | 300 | 760 | 184.2 | 441 | 323.8 | 464 | 381 | 7 | 619.1 | 12.7 | 12 | 2 3/4 | 540 | 2 7/8 | M72 | 730 |
Extra machining Flange Tapping Orifice Plate and ASME A350 Lf2 Socket Weld Orifice Flange supplier in Iran, Israel, Jordan, Saudi Arabia, check sizes, bolt Chart and Tolerances
Class 300 To 2500 Orifice Flange Bolt Chart
Bolt Chart Of Class 300 Orifice Flanges
| Normal Pipe Size | BC | Bolts No. | Diameter Of Holes | Stud Bolts Dia. | Length Of Stub Bolts |
| 1 | 88.9 | 4 | 11/16 | 5/8 | 125 |
| 1½ | 114.3 | 4 | 13/16 | 3/4 | 135 |
| 2 | 127.0 | 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 | 200.0 | 8 | 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 | 1.5/8 | 1½ | 240 |
Bolt Chart Of Class 600 Orifice Flanges
| Normal Pipe Size | BC | Bolts No. | Diameter Of Holes | Stud Bolts Dia. | Length Of Stub Bolts |
| 1 | 88.9 | 4 | 11/16 | 5/8 | 125 |
| 1½ | 114.3 | 4 | 13/16 | 3/4 | 135 |
| 2 | 127.0 | 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 | 215.9 | 8 | 1 | 7/8 | 150 |
| 6 | 292.1 | 12 | 1.1/8 | 1 | 180 |
| 8 | 349.2 | 12 | 1¼ | 1.1/8 | 195 |
| 10 | 431.8 | 16 | 1.3/8 | 1¼ | 220 |
| 12 | 489.0 | 20 | 1.3/8 | 1¼ | 230 |
| 14 | 527.0 | 20 | 1½ | 1.3/8 | 240 |
| 16 | 603.2 | 20 | 1.5/8 | 1½ | 260 |
| 18 | 654.0 | 20 | 1¾ | 1.5/8 | 280 |
| 20 | 723.9 | 24 | 1¾ | 1.5/8 | 300 |
| 24 | 838.2 | 24 | 2 | 1.7/8 | 335 |
Bolt Chart Of Class 900 Orifice Flanges
| Normal Pipe Size | BC | Bolts No. | Diameter Of Holes | Stud Bolts Dia. | Length Of Stub Bolts |
| 1 | 88.9 | 4 | 11/16 | 5/8 | 125 |
| 1½ | 114.3 | 4 | 13/16 | 3/4 | 135 |
| 2 | 127.0 | 8 | 11/16 | 5/8 | 125 |
| 2½ | 149.2 | 8 | 13/16 | 3/4 | 135 |
| 3 | 190.5 | 8 | 1 | 7/8 | 150 |
| 4 | 235.0 | 8 | 1¼ | 1.1/8 | 180 |
| 6 | 317.5 | 12 | 1¼ | 1.1/8 | 195 |
| 8 | 393.7 | 12 | 1½ | 1.3/8 | 230 |
| 10 | 469.9 | 16 | 1½ | 1.3/8 | 240 |
| 12 | 533.4 | 20 | 1½ | 1.3/8 | 260 |
| 14 | 558.8 | 20 | 1.5/8 | 1½ | 280 |
| 16 | 616.0 | 20 | 1¾ | 1.5/8 | 290 |
| 18 | 685.8 | 20 | 2 | 1.7/8 | 330 |
| 20 | 749.3 | 20 | 2.1/8 | 2 | 355 |
| 24 | 901.7 | 20 | 2 5/8 | 2½ | 445 |
Bolt Chart Of Class 1500 Orifice Flanges
| Normal Pipe Size | BC | Bolts No. | Diameter Of Holes | Stud Bolts Dia. | Length Of Stub Bolts |
| 1 | 101.6 | 4 | 1 | 7/8 | 150 |
| 1½ | 123.8 | 4 | 1.1/8 | 1 | 160 |
| 2 | 165.1 | 8 | 1 | 7/8 | 150 |
| 2½ | 190.5 | 8 | 1.1/8 | 1 | 165 |
| 3 | 203.2 | 8 | 1¼ | 1.1/8 | 185 |
| 4 | 241.3 | 8 | 1.3/8 | 1¼ | 205 |
| 6 | 317.5 | 12 | 1½ | 1.3/8 | 265 |
| 8 | 393.7 | 12 | 1¾ | 1.5/8 | 300 |
| 10 | 482.6 | 12 | 2 | 1.7/8 | 345 |
| 12 | 571.6 | 16 | 2.1/8 | 2 | 380 |
| 14 | 635.0 | 16 | 2 3/8 | 2¼ | 415 |
| 16 | 704.8 | 16 | 2 5/8 | 2½ | 450 |
| 18 | 774.7 | 16 | 2 7/8 | 2¾ | 500 |
| 20 | 831.8 | 16 | 3.1/8 | 3 | 545 |
| 24 | 990.6 | 16 | 3.5/8 | 3½ | 620 |
Bolt Chart Of Class 2500 Orifice Flanges
| Normal Pipe Size | BC | Bolts No. | Diameter Of Holes | Stud Bolts Dia. | Length Of Stub Bolts |
| 1 | 108.0 | 4 | 1 | 7/8 | 150 |
| 1½ | 146.0 | 4 | 1¼ | 1.1/8 | 180 |
| 2 | 171.4 | 8 | 1.1/8 | 1 | 185 |
| 2½ | 196.8 | 8 | 1¼ | 1.1/8 | 205 |
| 3 | 228.6 | 8 | 1.3/8 | 1¼ | 230 |
| 4 | 273.0 | 8 | 1.5/8 | 1½ | 260 |
| 6 | 368.3 | 8 | 2.1/8 | 2 | 350 |
| 8 | 438.2 | 12 | 2.1/8 | 2 | 385 |
| 10 | 539.8 | 12 | 2 5/8 | 2½ | 490 |
| 12 | 619.1 | 12 | 2 7/8 | 2¾ | 540 |
Grades Of ASTM A182 Alloy Steel Orifice Flanges
| D1 & D2 = ± 1% | D3 = ± 1 (mm) | D4 = 0/-0.4 (mm) | L = ± 0.1 (mm) | P = ± 0.1 (mm) | S = ± 0.1 (mm) |
Types Of Tapping In Orifice Plate
Benefits
- Flanges Taps.
- Pipe Taps.
- Full flow Taps
- Corner Taps.
- Elbow Taps.
DIN 19214 Orifice Flange Dimensions
| NPS (3) | ASME 300# (Weld Neck, TH, so) | ASME 600# (Weld Neck, RJ) | ASME 900# (Weld Neck, RJ) | ASME 1500# (Weld Neck, RJ) | ASME 2500# (Weld Neck, RJ) |
| 2 (51) | Standard | Standard | XS | XS | 160 |
| 21/2-(64) | Standard | Standard | XS | XS | N/A |
| 3 (76) | Standard | Standard | XS | N/A | N/A |
| 4(102) | Standard | Standard | XS | N/A | N/A |
| 6(152) | Standard | Standard | XS | N/A | N/A |
| 8 (203) | Standard | Standard | N/A | N/A | N/A |
| 10 (254) | Standard | XS | N/A | N/A | N/A |
| 12 (305) | Standard | XS | N/A | N/A | N/A |
| 14 (356) | Standard | N/A | N/A | N/A | N/A |
| 16 (406) | Standard | N/A | N/A | N/A | N/A |
| 18 (457) | Standard | N/A | N/A | N/A | N/A |
| 20 (508) | Standard | N/A | N/A | N/A | N/A |
| 24 (610) | XS | N/A | N/A | N/A | N/A |