En1092-1 1.7335 13crmo4-5 15CrMo Weld Neck Alloy Steel Flange

Weld Neck Flange
Weld neck flanges are among the most commonly used types in piping systems. They provide the highest level of joint integrity due to their butt-welded connection with a pipe. These flanges are ideal for high-pressure and high-temperature applications. Although they are more bulky and costly compared to other flange types, their strength and reliability make them a preferred choice in critical industrial settings.




Production Instructions
We can produce flanges according to American Standard, German Standard, Italian Standard, European Standard, and Chinese Standard. Additionally, we offer custom non-standard flanges based on your drawings. Our diameter range extends from DN15 to DN3000, with pressure ratings up to 2500LBS. The flanges are manufactured from carbon steel, stainless steel, alloy steel, and duplex ferritic-austenitic steel.

Flange Standards
Production Process


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Quality Assurance--TUV Certificate

Quality System Certificate:
We have a Grade A Manufacturing License for Special Equipment, a Press Equipment Directive Quality-Assurance System Certificate, a China Classification Society Work Approval Certificate, and a TUV Certificate.
Perfect Inspection Process:
Raw material inspection (5 steps) - Raw materials testing ensures the materials meet the order requirements.
Process testing (10 steps) - Each processing step is tested to ensure product quality at every stage.
Factory testing (6 steps) - Ensures a 100% qualified rate to meet customer requirements.


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