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  3. BOLTEX A/SA105

A-SA105 BOLTEX Orifice Union Weld Neck Flange Set Std Nos

A-SA105 BOLTEX Orifice Union Weld Neck Flange Set Std Nos
Product Information
BrandBOLTEX
Manufacturer Part NumberA/SA105
Part TypeFLANGE
CategoryORIFICE FLANGE UNION FOR FLOW MEASUREMENT
Pressure Class Cont.MATCHES SCH 40/STD REQUIREMENT
End A Diameter4 IN
Bore Diameter4.026 IN
Features Cont.INCLUDES 2 GASKETS
Unit TypeUNIT
Connection TypeBUTT-WELD
Manufacturer CodeBOLTEX 4 300
Astm Material SpecificationA/SA105 HIGH-STRENGTH FORGED MATERIAL
FeaturesPRESSURE TAPS, JACK SCREW HOLES, RAISED FACE FLANGES
Bolt MaterialASTM A193 GRADE B7
Asme StandardB16
Fitting ShapeUNION
MaterialFORGED CARBON STEEL
Materials Sourced FromUNITED STATES
Weight67 LBS
Schedule/wall ThicknessSTD
Heat Number1A265
Maximum Pressure3000 PSI
End-to-endBUTT WELD X BUTT WELD

Review BOLTEX A/sa105 Inch Class 300 Orifice Union Weld Neck Flange Set A105 Std Nos

The Boltex A/SA105 1A265 300 Orifice Union Weld Neck Flange Set is a premium quality product engineered for use in various industrial applications. This set comprises of two essential components: a weld neck flange and an orifice union. Both components conform to the A105 standard and are manufactured from high-grade SA304L stainless steel, ensuring superior durability and resistance to corrosion.

The weld neck flange features a raised face design, which provides an even and flat seating surface for the gasket. Its weld neck configuration enables it to be directly welded to the process pipe, making it a suitable option for high-pressure applications. The flange comes with a hub size of 300mm and a nominal size of 1 inches. Its thick design and well-engineered structure offer excellent mechanical strength, making it an ideal selection for demanding industrial processes.

The orifice union, an integral part of the set, is designed to facilitate the easy installation and removal of orifice plates without the need for welding. Its weld neck connection ensures a secure attachment to the process pipe, while the union body is equipped with a threaded connection for the orifice plate. The orifice union also includes a removable cover plate, providing easy access to the orifice plate for maintenance purposes.

Both components are precision machined and undergo rigorous quality control checks to ensure they meet the highest industry standards. The set comes complete with all necessary bolting and gaskets for a seamless installation process. The Boltex A/SA105 1A265 300 Orifice Union Weld Neck Flange Set is an excellent investment for those seeking reliable, durable, and easy-to-maintain components for their industrial processes.

The Boltex A105 1A265 300 Orifice Union Weld Neck Flange Set is a type of pressure equipment used in various industries for measuring and controlling fluid flow. Here are some pros and cons of buying this flange set:

Pros:

1. Material: This flange set is made of A105 material, which is a type of carbon steel that is widely used in the oil and gas industry due to its high strength and durability.

2. Orifice Union Design: The orifice union design allows for easy removal and installation of the orifice plate, which can save time and money in maintenance and repair.

3. Weld Neck Connection: The weld neck connection provides a strong and leak-free connection to the piping system, ensuring reliable operation.

4. ANSI Standard: This flange set conforms to ANSI (American National Standards Institute) standards, which ensures interchangeability and compatibility with other ANSI flanges.

Cons:

1. Cost: The price of this flange set can be higher than other types of flanges due to its high-performance features and materials.

2. Complexity: The orifice union design can be more complex than other types of flanges, requiring more expertise and experience to install and maintain.

3. Size and Weight: This flange set is larger and heavier than other types of flanges due to its thicker material and larger diameter, which can make transportation and installation more challenging.

Conclusion:

The Boltex A105 1A265 300 Orifice Union Weld Neck Flange Set is a high-performance pressure equipment component that offers reliable operation and easy maintenance. However, it comes with a higher cost, complexity, and size and weight compared to other types of flanges. If your application requires high accuracy and reliability in fluid flow measurement, and you have the expertise and resources to install and maintain this type of flange, then it may be a worthwhile investment. If not, you may want to consider other types of flanges that offer a more cost-effective and simpler solution.

Recommendation:

For applications that require accurate and reliable fluid flow measurement, and where ease of maintenance is a priority, the Boltex A105 1A265 300 Orifice Union Weld Neck Flange Set can be a good investment. However, it is important to ensure that you have the necessary expertise and resources to install and maintain this type of flange. If you are unsure, it may be worth consulting with a professional engineer or pressure equipment supplier to determine if this flange set is the best choice for your application. Alternatively, you may want to consider other types of flanges that offer a more cost-effective and simpler solution, such as screwed or socket-weld flanges.

Details:

It has never been used or installed, showing minor cosmetic blemishes from storage. The set consists of two flange halves bolted together, with weld neck ends for permanent butt-weld connection to matching pipe. Bore/internal diameter: 4.026 inches matches 4 schedule 40/std pipe id. Specifications: forged from a/sa105 carbon steel per asme b16 standards.

Nos 4 inch class 300 orifice union weld neck flange set Boltex a105 std 10 flanges no plate included this is a 4-inch nominal orifice union weld neck flange set manufactured by. It is used in industrial piping systems for flow measurement via differential pressure, such as oil, gas, chemical, or water applications. Pressure rating: class 300 up to 3000 psi functional. Origin: USA-made and sourced.

specifications pipehosefit:

  • brand: Boltex
  • mpn: A/sa105
  • part type: Flange
  • category: Orifice Flange Union For Flow Measurement
  • pressure class cont.: Matches Sch 40/std Requirement
  • end a diameter: 4 In
  • bore diameter: 4.026 In
  • features cont.: Includes 2 Gaskets
  • unit type: Unit
  • connection type: Butt-weld
  • manufacturer code: Boltex 4 300
  • astm material specification: A/sa105 High-strength Forged Material
  • features: Pressure Taps, Jack Screw Holes, Raised Face Flanges
  • bolt material: Astm A193 Grade B7
  • asme standard: B16
  • fitting shape: Union
  • material: Forged Carbon Steel
  • materials sourced from: United States
  • weight: 67 Lbs
  • schedule/wall thickness: Std
  • heat number: 1a265
  • maximum pressure: 3000 Psi
  • end-to-end: Butt Weld X Butt Weld

general pipehosefit:

  • category: Business & Industrial > Adapters > Pipe Hose Fittings

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offer pipehosefit:

  • started: january 7, 2026
  • prices: $46.95–$249.99
  • item condition:
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  • options: ship-to-home
  • availability: in stock
  • sold #: 16
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  • city: snowflake, arizona

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  • policy: returns accepted
  • time: 30 days
rating: 100.0% out of 100 based on 87 user ratings.
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