Slip On Orifice Flange Union

• ARO-OPAFU-SO2

What is a Slip On Orifice Flange Union?

A Slip-On Orifice Flange Union is a type of flow measurement device used in piping systems to measure the rate of fluid flow. It consists of a slip-on flange, which slides over the pipe and is then welded in place, and an orifice plate, which is inserted between the flanges to create a pressure drop that can be measured to determine flow rate. This design allows for easy installation, inspection, and replacement of the orifice plate, making it a practical and cost-effective solution for flow measurement in various industrial applications, including oil and gas, water treatment, and power generation.

Product Data

Overview

Arrotop is a trusted manufacturer and supplier of Slip-On Orifice Flange Unions, known for quality, precision, and ease of installation. Designed for accurate flow measurement, these flange unions are ideal for applications across industries such as oil & gas, chemical processing, and water treatment.

The Slip-On Orifice Flange Union allows for easy installation by sliding over the pipe and being welded. It is cost-effective and suitable for systems requiring moderate accuracy.

The Slip-On Orifice Flange Union (ARO-OPAFU-SO2)
is a cost-effective solution for moderate pressure systems. Its simplified installation process, versatility, and compliance with industry standards make it a practical choice for various applications, providing reliable performance and detailed documentation for ease of use.

Features

  • Simplified Installation : Facilitates less precise cutting and alignment.
  • Cost-Effective: Lower installation costs compared to weld neck flanges.
  • Versatile Use : Suitable for various pipe diameters and moderate pressure systems.

Technical Information

Model Number ARO-OPAFU-SO2
Material SS 304/L, 316/L, Duplex, Super Duplex, Hastelloy, Carbon Steel, Monel, Inconel, Titanium
Orifice Plate Types Square Edge, Eccentric, Conical Entrance, Quarter Circle
Pressure Classes 150, 300, 600, 900, 1500
Standards ISO 5167-2, ASME MFC-3M, ANSI B16.36, B31.3

Dimensional Data

Class 150 Slip On Flange Dimension

Size ( Inch) OD ( mm ) Flange Thickness (mm) Hub OD RF Diameter (mm) RF Height (mm) PCD (mm) No of Bolts Bolt Size (UNC)
1/2 90 9.6 30 34.9 2 60.3 4 1/2
3/4 100 11.2 38 42 2 69.9 4 1/2
1 110 1.27 49 50.8 2 79.4 4 1/2
1 /1/4 115 14.3 59 63.5 2 88.9 4 1/2
1 1/2 125 15.3 65 73 2 98.4 4 1/2
2 150 17.5 78 92.1 2 120.7 4 5/8
2 1/2 180 20.7 90 104.8 2 139.7 4 5/8
3 190 22.3 108 127 2 152.4 4 5/8
3 1/3 215 22.3 122 139.7 2 177.8 8 5/8
4 230 22.3 135 157.2 2 190.5 8 5/8
5 255 22.3 164 185.7 2 215.9 8 3/4
6 280 23.9 192 215.9 2 241.3 8 3/4
8 345 27 246 269.9 2 298.5 8 3/4
10 405 28.6 305 323.8 2 362 12 7/8
12 485 30.2 365 381 2 431.8 12 7/8
14 535 33.4 400 412.8 2 476.3 12 1
16 595 35 457 469.9 2 539.8 16 1
18 635 38.1 505 533.4 2 577.9 16 1 1/8
20 700 41.3 559 584.2 2 635 20 1 1/8
24 815 46.1 663 692.2 2 749.3 20 1 1/4

Class 300 Slip On Flange Dimension

Size ( Inch) OD ( mm ) Flange Thickness (mm) Hub OD RF Diameter (mm) RF Height (mm) PCD (mm) No of Bolts Bolt Size (UNC)
1/2 95 12.7 38 34.9 2 60.7 4 1/2
3/4 115 14.3 48 42.9 2 82.6 4 5/8
1 125 15.9 54 50.8 2 88.9 4 5/8
1 /1/4 135 17.5 64 63.5 2 98.4 4 5/8
1 1/2 155 19.1 70 73 2 114.3 4 3/4
2 165 20.7 84 92.1 2 127 8 5/8
2 1/2 190 23.9 100 104.8 2 149.2 8 3/4
3 210 27 117 127 2 168.3 8 3/4
3 1/3 230 28.6 133 139.7 2 184.2 8 3/4
4 255 30.2 146 157.2 2 200 8 3/4
5 280 33.4 178 185.7 2 235 8 3/4
6 320 35 206 215.9 2 269.9 12 3/4
8 380 39.7 260 269.9 2 330.2 12 7/8
10 445 46.1 321 323.8 2 387.4 16 1
12 520 49.3 375 381 2 450.8 16 1 1/8
14 585 52.4 425 412.8 2 514.4 20 1 1/8
16 650 55.6 483 469.9 2 571.5 20 1 1/4
18 710 58.8 533 533.4 2 628.6 24 1 1/4
20 775 62 587 584.2 2 685.8 24 1 1/4
24 915 68.3 702 692.2 2 812.8 24 1 1/2

Class 600 Slip On Flange Dimension

Size ( Inch) OD ( mm ) Flange Thickness (mm) Hub OD RF Diameter (mm) RF Height (mm) PCD (mm) No of Bolts Bolt Size (UNC)
1/2 95 14.3 38 34.9 7 66.7 4 1/2
3/4 115 15.9 48 42.9 7 82.6 4 5/8
1 125 17.5 54 50.8 7 88.9 4 5/8
1 /1/4 135 20.7 64 63.5 7 98.4 4 5/8
1 1/2 155 22.3 70 73 7 114.3 4 3/4
2 165 25.4 84 92.1 7 127 8 5/8
2 1/2 190 28.6 100 104.8 7 149.2 8 3/4
3 210 31.8 117 127 7 168.3 8 3/4
4 275 38.1 152 157.2 7 215.9 8 7/8
5 330 44.5 189 185.7 7 266.7 8 1
6 355 47.7 222 215.9 7 292.1 12 1
8 420 55.6 273 269.9 7 349.2 12 1 1/8
10 510 63.5 343 323.8 7 431.8 16 1 1/4
12 560 66.7 400 381 7 489 20 1 1/4
14 605 69.9 432 412.8 7 527 20 1 3/8
16 685 76.2 495 469.9 7 603.2 20 1 1/2
18 745 82.6 546 533.4 7 654 20 1 5/8
20 815 88.9 610 584.2 7 723.9 24 1 5/8
24 940 101.6 718 692.2 7 838.2 24 1 5/8

Class 900 Slip On Flange Dimension

Size ( Inch) OD ( mm ) Flange Thickness (mm) Hub OD RF Diameter (mm) RF Height (mm) PCD (mm) No of Bolts Bolt Size (UNC)
1/2 120 22.3 38 34.9 7 82.6 4 3/4
3/4 130 25.4 44 42.9 7 88.9 4 3/4
1 150 28.6 52 50.8 7 101.6 4 7/8
1 /1/4 160 28.6 64 63.5 7 111.1 4 7/8
1 1/2 180 31.8 70 73 7 123.8 8 1
2 215 38.1 105 92.1 7 165.1 8 7/8
2 1/2 245 41.3 124 104.8 7 190.5 8 1
3 240 38.1 127 127 7 190.5 8 7/8
4 290 44.5 159 157.2 7 235 8 1 1/8
5 350 50.8 190 185.7 7 279.4 12 1 1/4
6 380 55.6 235 215.9 7 317.5 12 1 1/8
8 470 63.5 298 269.9 7 393.7 16 1 3/8
10 545 69.9 368 323.8 7 469.9 20 1 3/8
12 610 79.4 419 381 7 533.4 20 1 3/8
14 640 85.8 451 412.8 7 558.8 20 1 1/2
16 705 88.9 508 469.9 7 616 20 1 5/8
18 785 101.6 565 533.4 7 685.8 20 1 7/8
20 855 108 622 584.2 7 749.3 20 2
24 1040 139.7 749 692.2 7 901.7 20 2 1/2

Class 2500 Slip On Flange Dimension

Size ( Inch) OD ( mm ) Flange Thickness (mm) Hub OD RF Diameter (mm) RF Height (mm) PCD (mm) No of Bolts Bolt Size (UNC)
1/2 135 30.2 43 21.3 34.9 7 88.9 4 3/4
3/4 140 31.8 51 26.7 42.9 7 95.2 4 3/4
1 160 35 57 33.4 50.8 7 108 4 7/8
1 1/4 185 38.1 73 42.2 63.5 7 130.2 4 1
1 1/2 205 44.5 79 48.3 73 7 146 4 1 1/8
1 1/2 205 44.5 79 48.3 73 7 146 4 1 1/8
2 235 50.9 95 60.3 92.1 7 171.4 8 1
2 1/2 265 57.2 114 73 104.8 7 196.8 8 1 1/8
3 305 66.7 133 88.9 127 7 228.6 8 1 1/4
4 355 76.2 165 114.3 157.2 7 273 8 1 1/2
5 420 92.1 203 141.3 185.7 7 323.8 8 1 3/4
6 485 108 235 168.3 215.9 7 368.3 8 2
8 550 127 305 219.1 269.9 7 438.2 12 2
10 675 165.1 375 273 323.8 7 539.8 12 2 1/2
12 760 184.2 441 323.8 381 7 619.1 12 2 3/4

Applications of Arrotop Slip-on Orifice Flange Union

Arrotop Slip-on Orifice flange unions are used in various industrial applications for measuring the flow rate of liquids, gases, and steam. They are a type of orifice plate assembly that provides a precise method for flow measurement and control in piping systems. Here are some key applications:

  • Flow Measurement in Pipelines: Used to measure the flow rate of fluids (liquids and gases) in pipelines, crucial for process control in industries like oil and gas, petrochemical, water treatment, and power generation.
  • Process Control: Helps in monitoring and controlling process parameters to ensure optimal operation of industrial processes. This is particularly important in chemical processing, refining, and pharmaceutical industries.
  • Steam Flow Measurement: Used in steam distribution systems to measure the flow of steam for heating and power generation applications. Ensuring accurate steam flow measurement is vital for efficiency and safety in these systems.
  • Custody Transfer: In the oil and gas industry, slip-on orifice flange unions are used in custody transfer applications to measure the amount of product being transferred from one party to another. Accurate measurement is crucial for billing and contractual agreements.
  • Hydraulic Systems: Employed in hydraulic systems to measure and control the flow of hydraulic fluids, ensuring the proper operation of hydraulic machinery and equipment.
  • HVAC Systems: Used in heating, ventilation, and air conditioning (HVAC) systems to measure and control the flow of air and other gases, optimizing system performance and energy efficiency.
  • Water Treatment Plants: Applied in water treatment processes to measure the flow of water and other treatment chemicals, helping in maintaining the desired treatment levels and ensuring the quality of treated water.
  • Power Generation: In power plants, slip-on orifice flange unions are used to measure the flow of various fluids, such as water, steam, and fuel, which are essential for the generation of electricity.
  • Research and Development: Utilized in laboratory and experimental setups for research and development purposes to study fluid dynamics and validate theoretical models.
  • Food and Beverage Industry: Used in the food and beverage industry to measure the flow of ingredients, ensuring accurate mixing and processing of products.

Advantages of Arrotop’s Slip-on Orifice Flange Union

Arrotop’s Slip-on Orifice Flange Unions offer several advantages, making them a preferred choice in various industrial applications for flow measurement and control. Some key advantages include:

  • Ease of Installation: The slip-on design allows for easy and quick installation over the pipe without the need for precise alignment or welding. This reduces installation time and labor costs.
  • Cost-Effective: Slip-on flange unions are generally more affordable compared to other types of flange unions. The reduced need for precise welding and alignment translates to lower installation costs.
  • Flexibility: Suitable for a wide range of pipe sizes and materials. This flexibility makes them ideal for diverse applications in different industries.
  • Durability: Made from high-quality materials, Arrotop’s slip-on orifice flange unions are designed to withstand harsh industrial environments, including high pressure and temperature conditions.
  • Accurate Flow Measurement: Ensures precise flow measurement, which is crucial for process control and efficiency in industrial applications. Accurate measurement helps in maintaining optimal operational parameters.
  • Low Maintenance: The design minimizes wear and tear, reducing the need for frequent maintenance. This contributes to lower operational costs and increased uptime.
  • Ease of Inspection and Replacement: The design allows for easy removal and inspection of the orifice plate, simplifying routine maintenance and replacement when necessary.
  • Versatility: Can be used in various applications, including oil and gas, petrochemical, water treatment, power generation, and more. This versatility makes them a valuable asset in many industrial settings.
  • Corrosion Resistance: Made from corrosion-resistant materials, these flange unions are suitable for use in corrosive environments, enhancing their longevity and reliability.