Throttling device issues
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For throttle devices commonly used in engineering projects, is a certification of verification or a calibration certificate required? Is it mandatory?
Throttling devices commonly used in engineering, such as throttle valves or throttle orifice plates, require calibration certificates to ensure their accuracy and performance. Certificates of verification are typically applicable to measuring equipment and tools. As for whether there is a mandatory requirement, it depends on the specific industry standards and regulatory requirements. In the construction and engineering industries, especially in systems involving safety or precise control, there are usually clear requirements for regular calibration and maintenance. .
Check the list of items subject to mandatory inspection; those not on the list do not require a certification
Those used in safety, environmental protection, healthcare, and trade settlement are subject to mandatory inspection and must undergo verification, while the rest can have calibration certificates issued.