Pressure gauge verification is not only about comparing readings. It also depends on traceability, environmental stability, range selection and drift control in service. This article summarizes the key issues with reference to official NIST calibration information.
Read MoreComposite SCBA cylinders provide major weight savings, but their service life and requalification cycle must be tightly controlled. This article summarizes key management points based on official Luxfer information.
Read MoreA written scheme of examination is not a routine maintenance checklist. Based on HSE guidance, this article explains what it should cover, how frequency should be determined and why it cannot replace day-to-day maintenance.
Read MoreSafety valve work should not focus only on the opening point. This article uses official Spirax Sarco and LESER information to summarize the field meaning of set pressure, overpressure, blowdown and installation effects.
Read MorePressure vessel risk is not limited to wall thinning. This article draws on HSE information on plant failure modes and welding failure studies to summarize what periodic inspections should pay attention to.
Read MoreTOFD is highly effective for sizing embedded planar flaws, but it is not a standalone solution for every weld region. Based on TWI and Evident material, this article summarizes where TOFD adds value in pressure piping inspection.
Read MoreTo further implement the gas cylinder quality and safety traceability program of the Lubei District Market Supervision Administration, a special review meeting was held at Hangao on April 29.
Read MoreHangao passed the renewal review for its special equipment inspection qualification after document review, on-site assessment and personnel examination.
Read MoreChina’s market regulator released updated measures for special equipment safety supervision, with clearer requirements for registration, periodic inspection, maintenance and inspection workflow.
Read MoreHangao organized a three-day training program for special equipment safety personnel from Tangshan and nearby enterprises.
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