ASTM A105 Weld Neck Flange, 3 Inch, 150 LB, ASME B16.5

Home Products Flanges Weld Neck Flanges ASTM A105 Weld Neck Flange, 3 Inch, 150 LB, ASME B16.5

Key Specifications / Features

ASTM A105 Weld Neck Flange Plant offers forged carbon steel WN flanges designed for reliable, high-integrity pipeline connections. Manufactured to ASME B16.5 standards, these 3-inch (DN80) weld neck flanges feature a 150 LB pressure class, PN6-PN20 rating range, and raised face (RF) sealing surface for secure gasket compression and leak-resistant performance. With standard wall thickness (SCH STD) and a black painted surface treatment, they provide enhanced durability and corrosion protection during storage, transportation, and service. These ASTM A105 WN flanges are suitable for oil and gas, petrochemical, chemical processing, power generation, water treatment, and general industrial piping systems requiring dependable flanged connections.

Model No.: LD-20260812-WNF-01
Hits: 0
Categories: Weld Neck Flanges
Tags: ASTM A105 Flange, 3 Inch Flange, Class 150 LB Flange

Request a quote

Detail Information

On this page

Type: Weld Neck Flange (WN Flange)
Nominal Size: 3 Inch (NPS 3)
Pressure Class: Class 150 LB
Sealing Face: RF (Raised Face)
Material: ASTM A105 Forged Carbon Steel
Matching Pipe Wall Thickness: SCH STD (Standard Schedule)
Manufacturing Standard: ASME B16.5
Surface Treatment: Black Painted

Product Description

Weld Neck Flange (WN Flange), 3 inch, Class 150LB, RF Facing, ASTM A105 Carbon Steel, SCH STD, ASME B16.5, Black Painted. A forged carbon steel weld neck flange designed for connecting pipes with a strong, leak-resistant joint. The raised face (RF) design provides reliable sealing performance when used with suitable gaskets and bolting.

Typical Application

Widely used in oil & gas, petrochemical, power generation, chemical processing, and industrial piping systems for high-pressure and high-temperature pipeline connections, valves, and equipment.