Product Selection

Socket Weld Flange: Pipe Fit-Up and Inspection Guide

Socket Weld Flange: Pipe Fit-Up and Inspection Guide

A socket weld flange has a machined socket that receives the pipe end. The pipe is inserted, positioned to the approved fit-up detail, and attached by a fillet weld at the hub. The socket helps locate the pipe, but correct bore, socket depth, pipe...

Jul 25, 2026
Spectacle Blind: Positive Isolation and Inspection Guide

Spectacle Blind: Positive Isolation and Inspection Guide

A spectacle blind combines a solid blank and an open spacer in one figure-eight component. It is installed between two flanges and rotated so the line is either positively blocked or open. Its visible position helps operators confirm the isolation state.

Jul 25, 2026
Weld Neck Flange: Selection, Dimensions, and Inspection

Weld Neck Flange: Selection, Dimensions, and Inspection

A weld neck flange connects to pipe with a butt weld at the tapered hub. The hub provides a gradual transition from the flange body to the pipe, so this type is often selected where pressure, temperature, cyclic loading, or joint reliability is important....

Jul 25, 2026
Anchor Flange: Load Transfer and Project Specification Guide

Anchor Flange: Load Transfer and Project Specification Guide

An anchor flange is a pipeline component used to transfer axial and other design loads from the pipe into an anchor block, structure, or restraint system. Unlike common bolted pipe flanges, many anchor flanges are project engineered and manufactured to an...

Jul 25, 2026
Flange Standards: How to Choose the Correct System

Flange Standards: How to Choose the Correct System

Flange standards define controlled systems for dimensions, ratings, tolerances, marking, materials, and testing within a stated scope. The purchase order must identify the exact standard and contract edition. “ANSI flange” by itself is usually incomplete...

Jul 25, 2026
Flat Face Flange: Gasket Coverage and Equipment Matching

Flat Face Flange: Gasket Coverage and Equipment Matching

A flat face flange has a gasket contact surface that is substantially flat across the flange face according to its design standard. It is used in specific piping and equipment systems where the joint design calls for an FF facing.

Jul 25, 2026
Long Weld Neck Flange: Nozzle Geometry and Inspection

Long Weld Neck Flange: Nozzle Geometry and Inspection

A long weld neck flange has an extended neck that can form part of a vessel, tank, or equipment nozzle. Unlike a standard weld neck flange used at a pipe joint, its neck length, bore, outside profile, and transition may be defined by an equipment drawing.

Jul 25, 2026
Nominal Pipe Size: NPS, DN, OD, and Schedule Explained

Nominal Pipe Size: NPS, DN, OD, and Schedule Explained

Nominal pipe size is a standardized designation used to identify pipe and matching components. NPS is not a direct measurement of pipe inside diameter, and for most sizes it is not equal to the actual outside diameter. DN is a metric nominal designation...

Jul 25, 2026
Plate Flange: Material Route, Dimensions, and Inspection

Plate Flange: Material Route, Dimensions, and Inspection

A plate flange is manufactured from plate rather than produced as a conventional forging. Plate flanges can be valid products when the governing standard or approved design permits that product form. They should not be treated as automatic substitutes for...

Jul 25, 2026
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