Safety / Relief Valve Testing Scheduler

Relief valve test/recertification intervals run from 6 months (fouling, corrosive, critical steam) to 5 years (clean non-fouling services) per API 576 practice and jurisdictional rules — annual is the common default for steam and process duty. Severe duty, harsh environments or regulatory requirements shorten it — and your OEM manual, insurer or local code always takes precedence over the generic default.

Bench testing (valve removed, tested on a rig, reseated/recertified) is the gold standard and what most jurisdictions mean by recertification; in-place lift-assist testing verifies set pressure without removal and suits valves that can't come out between turnarounds. Many plants alternate: bench at the major outage, in-place mid-cycle. Either way the failure data argues for the schedule: industry studies repeatedly find double-digit percentages of relief valves out of tolerance when tested — the device you never test is the one you're trusting blind.

Calendar scheduling suits relief valves because the dominant ageing mechanisms (seals drying, contamination, regulatory clocks) run on time, not duty. If a unit works double shifts, shorten its interval rather than switching methods — this register lets you set a different interval per asset.

Everything lives in this browser's localStorage: private, instant and free, with nothing uploaded. That also means it's per-device — for a shared team register, run it on the workshop's common tablet/PC, or export key dates into your team calendar. For audit-grade multi-user history you'd graduate to a full CMMS.