Product Overview
Large diameter flange is a heavy-duty pipe fitting manufactured in strict accordance with the ASME B16.47 standard. Forged in process and available in Weld Neck and Blind types, it is designed for 26"-60" pipeline systems with pressure ratings of CL150 to CL900. Widely applied in petroleum, chemical, natural gas, power and marine engineering, it offers excellent structural strength and sealing performance for large-scale industrial pipeline connections.
Product Parameters
|
Parameter |
Specification |
|
Execution Standard |
ASME B16.47 |
|
Product Types |
Forged, Weld Neck, Blind |
|
Specification Range |
26" - 60" |
|
Pressure Rating |
CL150, CL300, CL600, CL900 |
|
Connection Type |
Buttwelding |
|
Surface Treatment |
Rust preventive oil, hot-dip galvanizing |
|
Material Categories |
Carbon Steel, Stainless Steel, Alloy Steel |
|
Packaging Method |
Wooden crate or pallets |
|
Supply Capacity |
2000 tons/month |
|
ASME B16.47 Large Diameter Steel Flanges |
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|
Approximate weight of flange and blind(Kg) Series A |
|||||||||
|
SIZE |
CLASS150 |
CLASS300 |
CLASS600 |
CLASS900 |
|||||
|
DN |
NPS |
Flange |
Blind |
Flange |
Blind |
Flange |
Blind |
Flange |
Blind |
|
650 |
26 |
136.2 |
318.8 |
274.7 |
489.5 |
426.8 |
798.6 |
692.4 |
1165 |
|
700 |
28 |
156.7 |
378.2 |
338.3 |
597.1 |
481.3 |
935.7 |
821.8 |
1442.9 |
|
750 |
30 |
181.6 |
445.9 |
395 |
700.6 |
549.4 |
1100.1 |
962.5 |
1706.2 |
|
800 |
32 |
229.3 |
561.6 |
456.3 |
815 |
624.3 |
1296.7 |
1155.5 |
2061.7 |
|
850 |
34 |
245.2 |
628.4 |
519.9 |
938.9 |
699.2 |
1469.6 |
1348.4 |
2463 |
|
900 |
36 |
290.6 |
761 |
578.9 |
1106 |
774.1 |
1726.2 |
1541.4 |
2818.9 |
|
950 |
38 |
326.9 |
825.9 |
315.6 |
908.5 |
667.4 |
1545.5 |
1536.8 |
2838.9 |
|
1000 |
40 |
351.9 |
926.2 |
381.4 |
1080.6 |
740.1 |
1742.5 |
1643.5 |
3150.8 |
|
1050 |
42 |
404.1 |
1081 |
431.3 |
1220.4 |
921.7 |
2081.6 |
||
|
1100 |
44 |
449.5 |
1233.6 |
479 |
1397.9 |
980.7 |
2317.7 |
||
|
1150 |
46 |
481.3 |
1344.3 |
560.7 |
1588.6 |
1094.2 |
2614.2 |
||
|
1200 |
48 |
538 |
1520 |
626.6 |
1768.8 |
1296.2 |
3058.6 |
||
|
1250 |
50 |
576.6 |
1687.1 |
694.7 |
2016.7 |
1511.9 |
3493.6 |
||
|
1300 |
52 |
640.2 |
1886.9 |
753.7 |
2227.4 |
1616.3 |
3825.5 |
||
|
1350 |
54 |
719.6 |
2106.2 |
930.7 |
2580.6 |
1779.7 |
4237.2 |
||
|
1400 |
56 |
799.1 |
2330 |
978.4 |
2768.5 |
1943.2 |
4780.2 |
||
|
1450 |
58 |
869.5 |
2576.5 |
1030.6 |
3027.8 |
2106.6 |
5182 |
||
|
1500 |
60 |
928.5 |
2794 |
1121.4 |
3302.4 |
2270 |
5951.1 |
||
Product Advantages
Strict Standards, Reliable Quality
Manufactured per ASME B16.47, the large diameter flange ensures precise dimensions and robust mechanical properties for high-pressure large-diameter pipeline systems.
Diverse Materials, Strong Adaptability
The large diameter flange is available in carbon steel, stainless steel and alloy steel, adapting to various corrosive media and extreme working conditions.
Forged Durability
The forged large diameter flange features high density and strength, withstanding long-term operation in harsh industrial environments.
Main Applications
Oil & Gas Industry
The large diameter flange connects wellhead pipelines, gathering systems and compressor units, ensuring safe high-pressure oil and gas transportation.
01
Chemical & Power Engineering
Used in reactors, boilers and heat exchangers, it handles high-temperature and corrosive media in large-scale industrial systems.
02
Shipbuilding & Marine Engineering
It resists seawater corrosion in ship ballast, fuel and fire systems, securing marine pipeline operations.
03
Municipal & Industrial Engineering
Applied in water supply, drainage and power pipelines, it supports large-scale infrastructure and mechanical equipment manufacturing.
04
FAQ
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