Materials & Standards
How to read the markings on a pipe fitting
Heat number, grade, size, schedule and standard: what each marking on a fitting means and how to check it against the certificate before you accept it.
Tag
Quality
Articles tagged Quality.
Flanges
Flange facings explained: RF, FF and RTJ, and the gaskets that match
Raised face, flat face and ring type joint flanges each need a different gasket. Learn how to match facing, gasket and class so the joint seals first time.
Materials & Standards
What an EN 10204 3.1 mill test certificate tells you
A 3.1 certificate links your fittings to a heat of steel. See what it contains, how it differs from 2.2 and 3.2, and how to check one before accepting material.
Hygienic & Instrumentation
Hygienic fittings for pharma and food: finish, standards and tri-clamp
Tri-clamp, DIN 11851 and 3-A fittings differ in connection and cleaning behaviour. Learn how surface finish, material and gaskets decide a hygienic design.
Hygienic & Instrumentation
Installing double ferrule compression fittings correctly
Prepare the tube, insert to the stop and tighten by turns. A step-by-step guide to leak-free double ferrule instrument fittings, plus common mistakes to avoid.
Engineering Guides
Choosing and specifying steel gratings for plant platforms
Bearing bar size, pitch, span, finish and fixing: a practical guide to specifying welded steel bar grating for platforms, walkways and trench covers.
Procurement
How to write a complete RFQ for fittings and flanges
The details that get you an accurate quote the first time: size, schedule, grade, standard, facing, certificates, quantity and delivery. A buyer checklist.