ASTM A105 ASME B16.5 RF Welding Neck Flange Shipment to Venezuela Pipeline Project

For oil and gas pipeline assembly in Venezuela, welding neck flanges remain a reliable choice for high-integrity permanent flange connections. Haihao Group has finished manufacturing, inspection and shipment of ASTM A105 ASME B16.5 RF welding neck flange for a Venezuelan client. This batch covers multiple sizes and pressure classes, all with raised face sealing surface and STD wall schedule to match the project piping layout.

ASTM A105 ASME B16.5 RF welding neck flanges manufactured by Haihao Group

Product Specification Table

This ASTM A105 ASME B16.5 RF welding neck flange order combines Class 300 and Class150 ratings. Class300 flanges are available in 2″,4″,8″,12″,16″ sizes, while the 20″ unit is Class150. Every flange is raised face (RF) type, forged from ASTM A105 carbon steel, produced in accordance with ASME B16.5 dimensional standard and paired with STD schedule matching pipe. The tapered hub design of this ASTM A105 ASME B16.5 RF welding neck flange helps reduce stress concentration at the weld joint, making it suitable for process piping with pressure and temperature fluctuations.

Our quality control team carries out full visual inspection and dimensional verification for each ASTM A105 ASME B16.5 RF welding neck flange. Critical checks include flange thickness, bolt hole pitch, raised face finish and hub taper. Surface finish of the RF sealing face is strictly controlled to deliver consistent gasket sealing performance when assembled with matching spiral wound gaskets, which we also supplied for this same Venezuela project. Material verification confirms ASTM A105 chemical and mechanical properties.

Full material test certificates accompany each bundle of ASTM A105 ASME B16.5 RF welding neck flange. Clear permanent marking of size, class, material and standard is stamped on each flange body. Export seaworthy packaging protects flange sealing surfaces and bolt holes during long sea transportation. We can also provide additional NDT, special coating and custom marking if clients have extra project requirements.

Haihao Group supplies forged carbon steel flanges for South American energy infrastructure. We produce ASTM A105 ASME B16.5 RF welding neck flange in a full range of sizes and pressure ratings. Submit your flange list and project specifications to our engineering team for a tailored quotation.