Orifice Plate Flanges Manufacturer in India

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Orifice Plate Flanges Manufacturer, Exporter, Suppliers in Mumbai, India, China

ASME B16.9 Buttweld Equal Tee

One of the recignized & largest company which widely offers the various types and sizes of Orifice Plate in India. Duplex stainless steel Orifice flange also referred to as ORFF in its abbreviated form, are components used for metering the volumetric flow rate of liquids and gasses that are being transported through a pipe. When two Orifice Flange Jis 16k are used together, they have known an orifice flange union. The range of alloy steel Orifice flange covers all standard sizes and ranges, produced in all common flange materials. API 6A Alloy Steel Orifice Flange generally comes with either a Raised Face or RTJ (Ring Type Joint) facings. Each Orifice Flange Jis 5k comes with two pipe taps. These taps are used to measure the pressure drop of the flow through an orifice plate. The orifice plates do not come with flanges. The plates are sized based on the requirements of the application. In order to change the orifice plate, two jack screws are used to spread the Alloy Steel Orifice Flange Jis 10k apart. Alloy Steel Orifice Flange Din En 1092-1 has a raised face & is usually available in slip-on, weld neck, and threaded flanges.

Stainless Steel Orifice Flange Asme B16.5 Class 300 are installed in a straight run of pipe to avoid turbulence that could occur at the plate. As a thumb rule, an Alloy Steel Orifice Flange Class 600 has five diameters of pipe downstream &ten diameters of straight pipe upstream. There are a set of guidelines set mentioned in (American Gas Association) i.e. the AGA Report #3 for the use of the Orifice flange ANSI b16. 5 which lists the Orifice Metering of Natural gas.
When installing the Carbon Steel Orifice Flange Awwa C207 Class D, the pressure taps need to be at the same height as each other. Pressure taps must not be installed facing down. This is because the taps could become plugged with debris in the line. The supposition while calculating the orifice plate is that the static head of the tubes is the same on both sides of the Orifice Flange A105.

A note mentioned by any Stainless Steel Orifice Flange Manufacturer is that the orifice plate is not interchangeable. This means that the buyer cannot use an orifice plate of water line into the hydrocarbon line. Alloy Steel Orifice Flange 150 class lbs tend to be butt-welded into the pipeline. The inside diameter also referred to as the bore diameter of the pipe must be specified when ordering from all Orifice Flange Manufacturers In India. Carbon steel Orifice flange is available in ANSI classes 300, 600, 900, 1500, and 2500. Although it is important to note that Class# 600 and above Pn16 Alloy Steel Orifice Flange is available in weld neck type end connection only. Alloy Steel Orifice Flange Asme B16.5 IS not available in class ANSI 150 size because the thickness of ANSI 150 flanges is not enough to allow the drilling of pressure taps.

What is an Orifice Flange?

An Orifice flange is a disc-shaped flange, engineered with either a Raised Face or a Ring Type Joint facing. The traditional orifice flange assembly consists of a pair of flanges, orifice plate, bolts, nuts, gaskets, jacking screws and plugs. Jacking screws ensure the easy removal of the primary flow element.

An Orifice Flange is used in combination with orifice meters to measure the flow rate of oil, gas and other liquids conveyed by the pipeline. Orifice flanges are manufactured to ASME B16.36 in multiple sizes and, material grades.
An orifice flange is used to measure the flow of the fluid conveyed by the pipeline via a flow nozzle positioned on the flange itself. Pairs of pressure tappings are machined onto the orifice flange, making separate tappings on the pipe wall unnecessary.
An Orifice flange is a disc-shaped flange, engineered with either a Raised Face or a Ring Type Joint facing.

How does an orifice flange work?

The function of the orifice flange is to measure the rate of the flow of the commodity through the piping system. Orifice flanges are easy to recognize because they have a hole drilled through the face of the flange perpendicular to the pipe. They also have an additional set of bolts called jack screws.

What is the function of an orifice?

An orifice plate is a device used for measuring flow rate, for reducing pressure or for restricting flow (in the latter two cases it is often called a restriction plate ).


ASME B16.5 Orifice Flanges Specification :

Standard : ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings

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.

Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

BS : BS4504 , BS4504, BS1560, BS10

DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673


ANSI B16.47 Orifice Flanges Material & Grades:

Stainless Steel Orifice Flanges : ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L

Duplex & Super Duplex Steel Orifice Flanges : ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61, 2205 (UNS No. S31803), 2507 (UNS No. S32750)

Carbon Steel Orifice Flanges : ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F70, ASTM A350, LF2, LF3

Alloy Steel Orifice Flanges : ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Nickel Alloy Orifice Flanges :ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020).

Copper Alloy Steel Orifice Flanges : UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu -Ni- 70/30)


All Classes Dimensions of Orifice Plate Flanges

Slip On Flanges

NPS DIA
D3
L N P T
1/2 13 0.24 1.5 30 1.5
3/4 19 0.34 1.5 30 1.5
1 25 0.42 2 30 2
40 0.64 3 30 3
2 51 1 6 30 3
3 76 1.5 8 40 3
4 102 1.5 10 40 5
6 152 1.5 15 40 5
8 202 3.5 15 40 7
10 253 3.5 19 45 7
12 302 3.5 20 45 10
14 341 6 20 45 10
16 392 6 21 50 11
18 443 8 23 50 13
20 494 8 25 50 16
24 595 10 29 60 18
NPS ASME B16.5 Flange Class
150 300 600 900 1500 2500
S
1/2 110 110 110 115 115 120
3/4 110 110 110 115 115 120
1 110 115 115 120 120 125
110 120 120 125 125 130
2 110 115 115 125 125 130
3 115 120 120 125 135 140
4 115 125 125 130 140 150
6 115 120 130 135 145 170
8 120 125 135 145 155 170
10 120 130 145 145 165 190
12 125 135 140 145 165 195
14 130 140 145 150 175  
16 130 145 150 155 180  
18 130 145 155 160 195  
20 135 150 155 165 205  
24 135 160 165 190 2205  
NPS ASME B16.5 Flange Class
150 300 600 900 1500 2500
DIA
D4
1/2 48 54 54 64 64 70
3/4 57 67 67 70 70 77
1 67 73 73 80 80 86
86 96 96 99 99 118
2 105 111 111 143 143 146
3 137 149 149 168 175 197
4 175 181 194 206 209 235
6 222 250 266 289 282 317
8 279 307 320 358 352 387
10 339 361 399 434 434 475
12 409 422 456 497 520 549
14 450 485 491 519 577  
16 513 539 564 573 640  
18 548 596 611 637 703  
20 605 653 681 697 754  
24 716 773 789 836 899  

Tolerances

D1 & D2 = ± 1%
D3 = ± 1 mm
D4 = 0/-0.4 mm
L = ± 0.1 mm
N = see note 6
P = ± 0.1 mm
S = ± 0.1 mm
T = see note 2
Notes:
  1. Marking
    The Upstream side of the orifice tab shall be stamped at the indicated locations with:
    - the word UPSTREAM
    - the Tag Number
    - the ASME flange class, followed by RF
    - the nominal pipe size (NPS)
    - the measured orifice D1 (in mm)
    - the material of the orifice plate
    - the type of orifice plate (Square, Restriction etc.)
    Letter height approx. 4 mm
  2. Welding of tab
    Tab may be integral with orifice plate up to and including 7 mm plate thickness.
    In other cases full penetration joint to be applied.
  3. Finish of plate
    The upstream and downstream faces of the orifice plate to a diameter equal to D3 shall have a surface roughness Ra ≤ 0.8 µm ASME B46.1.
    The remaining annular part (between D4 & D3) of upstream and downstream faces shall have a surface roughness Ra between 3.2 and 3.6 µm ASME B46.1. This finish shall be obtained by machining with a round nosed cutting tool having a 0.8 mm radius at a feed rate between 0.35 and 0.45 mm per revolution.
  4. Concentricity
    The centre of the orifice shall not differ from the centre of the plate by more than 0.1 mm for ≤ NPS 8 and 0.2 mm for > NPS 8.
  5. Finish of throat
    The throat and outlet cone shall have a surface roughness Ra ≤ 0.4 µm ASME B46.1.
    All edges shall be sharp and free from burrs, so that when viewed with the naked eye no light is reflected by the corners.
  6. Plate thickness
    The difference between any two measurements of plate thickness, for annular part D1-D3, shall not differ by more than 0.001 DN in mm.
    The plate shall not depart from flatness along any diameter by more than 0.01 D3.
    Tolerance for N shall be:
    N ≤ 6 mm +0.1/-0.25 mm
    N > 6 mm +0/-1.5 mm
    Thickness for annular part D3-D4, may be slightly less, max 0.05 mm, due to surface finishing difference between D1-D3 & D3-D4. (see note 3)
General notes:

  • Dimensions are in millimeters unless otherwise indicated.
  • Allowable pressure difference 20 bar for temperatures up to 400 °C and D1/D3 ≥ 0.1. The thickness of the plate needs to be verified for strength in case the pressure difference is higher than 20 bar and/or the temperature is beyond 400 °C. Based on the outcome of the calculation the thickness of the plate needs to be adjusted.
  • DIA D1 & DIA D2 - to be specified by purchaser.
  • Material to be specified by purchaser.


  • Call@ 9987994248. India's leading Exporter, Manufacturer, and Supplier of Premium Quality AISI/ ANSI/ASME B16.5 Orifice Plate Flanges. EN 1092-2 PN16 Orifice Plate Flanges in India, Mumbai, Ahmedabad, Chennai, Pune & so on. MSS SP-44 Bsp Orifice Plate Flanges dimensions and price in Mumbai.

    Other Names: ANSI B16.5 Orifice Plate Flanges, Orifice Plate Flanges Class 150, Orifice Plate Flanges Class 300

    Material: Stainless Steel, Carbon Steel, Duplex & Super Duplex Steel, High Nickel Alloy, Hastelloy & Titanium

    Brand: Fitwel Industries LLP

    Manufacturer: Fitwel Industries LLP

    Suppliers & Exporter: Fitwel Industries LLP

    Rating: 4.2/5 based on 611 customer reviews

    ASME B16.9 Stainless Steel Orifice Plate Available Types

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    Orifice Plate Flanges Application

    ASME B16.9 Orifice Plate Flanges are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Orifice Plate Flanges through a worldwide network of stock-keeping branches. These Plate & Forged Flanges is used in various industries like:

  • Orifice Plate Flanges For Oil & Gas Industries
  • Orifice Plate Flanges For Petrochemical Industries
  • Orifice Plate Flanges For Engineering Industries
  • Orifice Plate Flanges For Chemical Industries
  • Orifice Plate Flanges For Sugar Industries
  • Orifice Plate Flanges For Power Generation Industries
  • Orifice Plate Flanges For Fertilizers Industries
  • Orifice Plate Flanges For Food Processing Industries
  • Orifice Plate Flanges For Polymer Industries
  • Orifice Plate Flanges For Dairy Industries
  • Orifice Plate Flanges For Bio-Pharma Industries


  • Coutries & Cities We Serve


    We are renowned & most acclaimed Manufacturers, Suppliers & Exporter And Stockist of Orifice Plate Flanges in Stainless Steel & Carbon Steel And Alloy Steel & High nickle Alloy.

    For More Information About, Orifice Plate Please Call 91-22-2382 9256 or Send an Email to sales@fitwelindia.com

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