A safety valve may look fine, but when the set pressure is reached, it fails to open. In many such incidents, spring aging is the hidden culprit. Long‑term compression stress, combined with heat and vibration, causes th [2026-05-27]
In severe services – corrosive, viscous, polymerising, or solids‑laden fluids – the safety valve cannot contact the process medium directly. A rupture disc installed at the valve inlet isolates the medium, keeping the [2026-05-25]
Abnormal safety valve operation is not only about leakage or failure to open. Another common field issue is rapid, repeated movement of the disc after opening, producing a noisy “chattering” sound. This is flutter or c [2026-05-22]
Chrome‑moly steel (WC6, WC9) is the standard material for high‑temperature steam and thermal oil systems, handling up to 550°C. Below are 2026 price references and key selection parameters. [2026-05-08]