Blog

Piping Technology Know-how

Practical knowledge on pipes, flanges, fittings, valves and gaskets – standards, materials and applications, clearly explained.

AD 2000 code: series, W data sheets and ordering practice

Series, W data sheets and what “AD 2000-W 2” on a certificate means for your order.

Fluid groups, categories I–IV and sound engineering practice – when CE, when 3.1, when a notified body.

Water-tube or shell boiler – which standard applies and which creep-resistant grades belong with it.

DN versus NPS, PN versus Class – what really corresponds and what only looks alike.

Nominal diameter, pressure rating and wall thickness – the three most important key figures of every pipeline, clearly explained.

Weld-neck, blind or loose flange? Designs, sealing faces and PN pressure ratings in piping construction.

3D or 5D, 90° or 45°, seamless or welded – how to choose the right pipe bend.

What lies behind 2.1, 2.2, 3.1 and 3.2 – and which certificate you need for which application.

Which gasket suits which flange connection? An overview by pressure, temperature and medium.

Before the first metre of pipe is ordered: how we survey on site, design and calculate the budget.

Bent boiler tubes and drilled tube sheets – how special parts for the three-pass boiler are produced.

Which bolting suits the flange connection? Strength classes and materials at a glance.