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ASME B16.47 Class 150 Series A Flange (Weld Neck and Blind Flange)

2024-11-25 16:20:18 Hits:51 American Standards / Product Standards

The ASME B16.47 Class 150 Series A flange is a large-diameter flange designed for connecting pipes in critical industrial applications. Series A flanges are part of the ASME B16.47 standard, which covers steel flanges for nominal pipe sizes (NPS) 26 inches through 60 inches, ensuring high reliability and performance in pipeline systems.

Key Features of Class 150 Series A Flanges

Nominal Pipe Size Range:Covers flanges for pipe sizes from NPS 26 inches to 60 inches.

Pressure Class:Rated for Class 150, suitable for systems operating at lower pressures.

Design and Structure:

Thicker and Heavier than Series B flanges, providing enhanced strength and better load-handling capacity.

Larger bolt circle diameter and bolt hole sizes compared to Series B, offering superior mechanical integrity.

Materials:Commonly manufactured from carbon steel (A105), stainless steel, or alloy steel, ensuring durability and adaptability to various operating conditions.

Gasket Compatibility:Designed with a raised face (RF) or flat face (FF) to accommodate standard gaskets for a secure seal.

Applications:Preferred for pipelines where safety, reliability, and strength are critical, especially in high-stress environments.

Dimensional Specifications

Key dimensions for a Class 150 Series A flange include:

  • Outer Diameter (OD): Larger than Series B flanges for improved structural strength.
  • Bolt Circle Diameter: Accommodates more bolts for enhanced connection stability.
  • Flange Thickness: Heavier construction ensures better performance under stress.
  • Bolt Hole Count: Higher number of bolt holes for a stronger, leak-proof connection.

Dimension of ASME B16.47 Class 150 Series A Flange:

Dimensions of ASME B16.47 Class 150 Series A Flanges

Dimensions of ASME B16.47 Class 150 Series A Flanges

Nominal Pipe Size O.D. of flange Minimum Thickness of Flange,tf[Note(1)] Length Through Hub Diam. of Hub Hub Diam. Top Raised Face Diam. Drilling Diam. of Bolt,in. Minimum Fillet Radius
O WNF Blind Y X[Note(2)] A[Note(3)] R Diam. of Bolt Circle No. of Bolt Holes Diam. of Bolt Hole,in. r1
26 870 66.7 66.7 119 676 660.4 749 806.4 24 1 ⅜  1 ¼ 10
28 925 69.9 69.9 124 727 711.2 800 863.6 28  1 ⅜ 1 ¼ 11
30 985 73.1 73.1 135 781 762.0 857 914.4 28  1 ⅜ 1 ¼ 11
32 1060 79.4 79.4 143 832 812.8 914 977.9 28 1 ⅝ 1 ½ 11
34 1110 81.0 81.0 148 883 863.6 965 1028.7 32 1 ⅝ 1 ½ 13
36 1170 88.9 88.9 156 933 914.4 1022 1085.8 32 1 ⅝ 1 ½ 13
38 1240 85.8 85.8 156 991 965.2 1073 1149.4 32 1 ⅝ 1 ½ 13
40 1290 88.9 88.9 162 1041 1016.0 1124 1200.2 36 1 ⅝ 1 ½ 13
42 1345 95.3 95.3 170 1092 1066.8 1194 1257.3 36 1 ⅝ 1 ½ 13
44 1405 100.1 100.1 176 1143 1117.6 1245 1314.4 40 1 ⅝ 1 ½ 13
46 1455 101.6 101.6 184 1197 1168.4 1295 1365.2 40 1 ⅝ 1 ½ 13
48 1510 106.4 106.4 191 1248 1219.2 1359 1422.4 44 1 ⅝ 1 ½ 13
50 1570 109.6 109.6 202 1302 1270.0 1410 1479.6 44 1 ⅞ 1 ¾ 13
52 1625 114.3 114.3 208 1353 1320.8 1461 1536.7 44 1 ⅞ 1 ¾ 13
54 1685 119.1 119.1 214 1403 1371.6 1511 1593.8 44 1 ⅞ 1 ¾ 13
56 1745 122.3 122.3 227 1457 1422.4 1575 1651.0 48 1 ⅞ 1 ¾ 13
58 1805 127.0 127.0 233 1508 1473.2 1626 1708.2 48 1 ⅞ 1 ¾ 13
60 1855 130.2 130.2 238 1559 1524.0 1676 1759.0 52 1 ⅞ 1 ¾ 13

GENERAL NOTES:
(a)Dimensions are in millimeters.
(b)Blind flanges may be made with or without hubs at the manufacturer’s option.
NOTES:
(1)The minimum flange thickness does not include the raised face thickness.
(2)This dimension is for the large end of hub,which may be straight or tapered.

Haihao Group can provide a variety ASME B16.47 standard flange,as follows:

Applications of Class 150 Series A Flanges

Class 150 Series A flanges are used in a variety of industrial applications, including:

  • Oil and Gas Pipelines: Ideal for transporting crude oil and natural gas at lower pressures.
  • Petrochemical Plants: Used in systems requiring secure and reliable connections.
  • Water Treatment Systems: Suitable for large-scale water distribution projects.
  • Power Plants: Used in lower-pressure steam and cooling water systems.

Advantages of ASME B16.47 Class 150 Series A Flanges

  1. Strength and Durability: Robust design ensures excellent performance in demanding conditions.
  2. Standardized Dimensions: Allows for easy integration into existing pipeline systems.
  3. Leak-Proof Connections: Larger bolt patterns and enhanced construction minimize the risk of leakage.
  4. Versatility: Compatible with various piping materials and gasket types.

Why Choose Haihao Group for ASME B16.47 Class 150 Series A Flanges?

At Haihao Group, we manufacture and supply high-quality ASME B16.47 Class 150 Series A flanges designed to meet the most stringent industry requirements.

  • Precision Engineering: Our flanges are made to exact ASME specifications for flawless performance.
  • Premium Materials: Produced from top-grade materials like carbon steel A105 for strength and reliability.
  • Comprehensive Testing: Each flange undergoes rigorous quality checks to ensure compliance and durability.
  • Global Reach: With extensive shipping capabilities, we deliver products to customers worldwide.

Contact Us

For more details about ASME B16.47 Class 150 Series A flanges, or to request a quote, reach out to Haihao Group today. We are committed to providing the best solutions for your pipeline needs! Email: sales@haihaogroup.com

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