Flange Technical Guides & Industry News
Technical guidance on flange materials, standards, inspection, applications and industrial procurement.
Can Carbon Steel and Stainless Steel Flanges Be Bolted Together?
Learn when carbon and stainless steel flanges can mate, how galvanic corrosion changes the decision, and what buyers should specify in an RFQ.
Flange Bolt Hole Orientation: Why Bolt Holes Straddle the Centerline
Learn how flange bolt holes straddle centerlines, how plant north and equipment nozzles affect clocking, and what to verify before final welding.
Dual-Certified 316/316L Flanges: What the MTC Must Prove
Buying dual-certified 316/316L flanges? Check grade declarations, test evidence and traceability before accepting the MTC or approving a substitution.
Incoloy 825 vs Inconel 625 Flanges: How to Choose
Compare alloy 825 and 625 flanges by corrosion service, composition, heat treatment and specification. Check the key RFQ details before choosing a grade.
Weld Neck Flange Bore vs Pipe Schedule: Avoiding Fit-Up Mismatch
Match weld neck flange bores to pipe dimensions. Learn why pressure class is not pipe schedule, where 40S differs, and what to confirm before ordering.
Can XRF Identify 316L Stainless Steel Flanges?
Can handheld XRF confirm 316L flanges? Learn its carbon detection limits, when OES or LIBS helps, and what buyers should check before accepting delivery.
Custom 316L Flange RFQ Checklist: 10 Details to Confirm
Specify custom 316L flanges with a 10-point RFQ checklist covering drawings, ASTM A182 F316L, pressure design, inspection and delivery documents.
Flanged vs. Wafer Valve Connections: How to Choose the Right Piping Connection
A practical comparison of flanged-end and wafer-style valve connections for piping design, procurement and maintenance.
Why Flange Gaskets Should Never Be Reused: Engineering Principles and Best Practices
An engineering guide to gasket deformation, hidden service damage, common gasket types and safe flange-joint reassembly.
Air Valve Chamber vs Washout Chamber: Key Differences
A practical engineering comparison of air valve chambers and washout chambers in water pipelines, including location, components, drainage and maintenance.