When engineers specify a rubber expansion joint, attention naturally goes to the elastomer body — EPDM, NBR, Neoprene — and rightly so. But there is an equally critical component that often goes overlooked: the steel flanges. Flanges are the rigid connection points that bolt the flexible joint into your piping system. They are exposed to the…

1. The Problem: When Heat Meets Acid, Standard Rubber Fails Fast If you work in chemical processing, power generation, wastewater treatment, or metallurgy, you already know the drill: your piping runs hot, your media is corrosive, and off-the-shelf rubber joints don’t last. We see it all the time. A plant specs a standard EPDM joint…

As China’s industrial infrastructure exports continue to grow under the Belt and Road Initiative, more international engineering teams are encountering Chinese standards — yet clear English-language explanations remain scarce. Devel Fluid’s guide bridges this gap. Key Question: How Far Apart Should Expansion Joints Be Placed? Based on GB/T 12777-2019 — China’s national standard for metal bellows expansion…